M254/M256/M258 Low Power LCD Series

The series of NuMicro Family 32-bit microcontrollers based on the ARM Cortex-M23 core using ARMv8-M architecture. They are equipped with LCD display driver, capacitive touch key functions and rich peripherals and communication interfaces, including UART, SPI, I²C, I²S, SD, SC and USB. They are mainly designed for portable devices, smart home appliances, IoT applications and industrial automation.
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 Flash	Loader Flash	Programm. methods	Clock   frequency	Supply   voltage   [V]	Operating temperature [°C]	Package	Status *
M254KE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 86 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-128	P
M254MD2AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 37 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 5-channel PDMA 6-channel PWM 12-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	64 KB	8 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-44	P
M254QE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 70 I/O pins LCD driver 4 x 32-bit timers Watchdog interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-80	P
M254SD2AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 54 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	64 KB	8 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-64	P
M254SE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 53 I/O pins LCD driver 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 SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-64	P
M256KE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 86 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 16-keys capacitive touch sensing 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-128	P
M256MD2AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 37 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x S.C. ( ISO-7816-3) 6-keys capacitive touch sensing 5-channel PDMA 6-channel PWM 12-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	64 KB	8 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-44	P
M256QE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 70 I/O pins LCD driver 4 x 32-bit timers Watchdog interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 16-keys capacitive touch sensing 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-80	P
M256SD2AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 54 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x S.C. ( ISO-7816-3) 14-keys capacitive touch sensing 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	64 KB	8 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-64	P
M256SE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 53 I/O pins LCD driver 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 SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 16-keys capacitive touch sensing 5-channel PDMA 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-64	P
M258KE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 82 I/O pins LCD driver 4 x 32-bit timers RTC Watchdog interfaces: 3 x UART, 1 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 24-keys capacitive touch sensing 5-channel PDMA USB Device compliant with USB 2.0 Full-Speed specification 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	64 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-128	P
M258QE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 66 I/O pins LCD driver 4 x 32-bit timers Watchdog interfaces: 3 x UART, 3 x USCI (Universal Serial Control Interface configured as UART, SPI or I2C), 1 x SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 24-keys capacitive touch sensing 5-channel PDMA USB Device compliant with USB 2.0 Full-Speed specification 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-80	P
M258SE3AE (4025 KB)	operating frequency up to 48 MHz programmable system clock source 2 external crystal oscillators and 3 internal RC oscillators 32-bit hardware multiplier / divider up to 49 I/O pins LCD driver 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 SPI / I2S (configured as SPI or I2S), 1 x I2C, 1 x SC ( ISO-7816-3) 24-keys capacitive touch sensing 5-channel PDMA USB Device compliant with USB 2.0 Full-Speed specification 6-channel PWM 16-channel 12-bit ADC 2-channel 12-bit DAC 2 x analog comparator tamper detection 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: Power-down, Deep Power-down	128 KB	16 KB	configurable	4 KB	ISP / ICP / IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz Int. RC: 48 MHz 4.032 MHz 38.4 kHz	1.75 – 5.5	-40 – +105	LQFP-64	P