32-bit ARM CortexTM-M23 - NuMicro® Family



M251/M252 Series

The series of NuMicro Family 32-bit microcontrollers based on the ARM Cortex-M23 core using ARMv8-M architecture. They provide secure memory areas to secure critical program codes. They are equipped with rich peripherals and communication interfaces, including UART, SPI, I2C, I2S, CAN, LIN, SD, SC and USB. These chips are mainly designed to realize robust IoT security applications.
All Ics are RoHS compliant.

* Status: P - mass production, S - samples, UD - under development, N - not recommended for new design.

Chip Description Application Flash SRAM Data FlashLoader FlashProgramm.
methods
Clock
  frequency  
Supply
  voltage  
[V]
Operating
temperature
[°C]
   Package   Status *
M251EC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 19 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 11-channel PWM
  • 9-channel 12-bit ADCs
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105TSSOP-28P
M251FC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 15 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 9-channel PWM
  • 7-channel 12-bit ADCs
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management:Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105TSSOP-20P
M251ZC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 12-channel PWM
  • 10-channel 12-bit ADCs
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105QFN-33P
M251LC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M251LD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M251SC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 54 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M251SD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 54 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M251ZD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 20-channel PWM
  • 10-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105QFN-33P
M251KE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 85 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-128P
M251LE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M251SE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 53 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M251KG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 85 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-128P
M251LG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M251SG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 53 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M252EC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 19 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 11-channel PWM
  • 9-channel 12-bit ADCs
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105TSSOP-28P
M252FC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 15 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 7-channel PWM
  • 3-channel 12-bit ADCs
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management:Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105TSSOP-20P
M252ZC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 2 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 12-channel PWM
  • 10-channel 12-bit ADCs
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB8 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105QFN-33P
M252LC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M252LD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M252SC2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 54 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
32 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M252SD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 54 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M252ZD2AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 2 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3)
  • VAI (Voltage Adjustable Interface)
  • 5-channel PDMA
  • 20-channel PWM
  • 10-channel 12-bit ADCs
  • 2 x analog comparator
  • 4 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
64 KB12 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105QFN-33P
M252KE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 85 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-128P
M252LE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M252SE3AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 53 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 2 x analog comparator
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
128 KB16 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P
M252KG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 85 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-128P
M252LG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 12-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-48P
M252SG6AE
  • operating frequency up to 48 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • 32-bit hardware multiplier / divider
  • 1-region eXecute-Only-Memory ( XOM ) to secure critical program codes
  • up to 53 I/O pins
  • 4 x 32-bit timers
  • RTC
  • Watchdog
  • interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x QSPI, 1 x SPI / I2S (configured as SPI or I2S), 2 x I2C, 1 x SC ( ISO-7816-3), 16/8-bits EBI
  • VAI (Voltage Adjustable Interface)
  • 8-channel PDMA
  • 24-channel PWM
  • 16-channel 12-bit ADCs
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • 8 x PSIO (Programmable Serial I/O) pins
  • 1 x USB 2.0 FS Device with on-chip PHY (crystal-less design)
  • 96-bit Unique ID (UID) and 128-bit Unique Customer ID (UCID)
  • LDO regulator
  • power management: Power-on Reset (POR), Brown-out Reset (BOR) and Low Voltage Reset (LVR)
  • power saving modes: Idle, Power-down, and Deep Power-down
256 KB32 KB 4 KBISP / ICP / IAPExt. crystal:
4 - 32 MHz
32.768 kHz

Int. RC:
48 MHz
4.032 MHz
38.4 kHz
1.8 – 5.5-40 – +105LQFP-64P


PDW MARTHEL
ul. Sosnowa 24-5 Bielany Wrocławskie 55-040 Kobierzyce
tel. (71) 311 07 11 fax: (71) 311 07 13 marthelinfo@marthel.pl
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