32-bit ARM CortexTM-M4 - NuMicro® Family

M481 Base Series

The basic series of NuMicro Family 32-bit microcontrollers based on the ARM Cortex-M4F core with DSP extension, and equipped with a wide range of peripherals and interfaces, like UART, SPI, I2C, PWM.
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 *
M481LE8AE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: (8+1) x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), (2+2) x SPI, 3 x I2C, 3 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 12-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 128 KB 64 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-48 P
M481LGCAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 8 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), 5 x SPI, 3 x I2C, 3 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 12-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 256 KB 128 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-48 P
M481LIDAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 41 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 6 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 3 x S.C. (ISO-7816-3), 4 x SPI, 5 x I2C, 4 x I2S, EBI, 2 x SDHC
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • 24-ch 16-bit PWM
  • 12-ch 12-bit ADC
  • 2 x 12-bit DAC
  • 2 x analog comparator
  • 2 x operational amplifier
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 512 KB 160 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-48 P
M481SE8AE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 52 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: (8+1) x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), (3+2) x SPI, 3 x I2C, 4 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 16-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • tamper detection
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 128 KB 64 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M481SGCAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 52 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 8 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), 5 x SPI, 3 x I2C, 4 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 16-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • tamper detection
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 256 KB 128 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M481SGCAE2A
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 52 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 8 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), 5 x SPI, 3 x I2C, 4 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • (8+8)-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • tamper detection
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 256 KB 128 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M481SIDAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 52 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 6 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 3 x S.C. (ISO-7816-3), 5 x SPI, 5 x I2C, 5 x I2S, EBI, 2 x SDHC
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • 24-ch 16-bit PWM
  • 16-ch 12-bit ADC
  • 2 x 12-bit DAC
  • 2 x analog comparator
  • 2 x operational amplifier
  • tamper detection
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 512 KB 160 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 LQFP-64 P
M481ZE8AE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: (8+1) x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), (2+2) x SPI, 3 x I2C, 3 x I2S, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 1 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 10-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 128 KB 64 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P
M481ZGCAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 8 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 1 x S.C. (ISO-7816-3), 4 x SPI, 3 x I2C, 3 x I2S, EBI, 1 x SDHC, digital camera (CCIR601, CCIR656 and 4-bit interfaces for CMOS sensor)
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 2 x Quadrature Encoder Interface (QEI)
  • hardware AES-256 accelerator
  • 24-ch 16-bit PWM
  • 10-ch 12-bit ADC
  • 1 x 12-bit DAC
  • 2 x analog comparator
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 256 KB 128 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P
M481ZIDAE
 (12725 kB)
  • ARM Cortex-M4F core with DSP extension
  • operating frequency up to 192 MHz
  • Memory Protection Unit (MPU)
  • programmable system clock source
  • 2 external crystal oscillators and 2 internal RC oscillators
  • PLL controller (the source of system clock up to 480 MHz) sourced from 2 high speed oscillators: crystal or RC
  • 16-channel PDMA
  • up to 26 I/O pins
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • interfaces: 6 x Low-Power UART (supporting IrDA, RS-485 and LIN function), 3 x S.C. (ISO-7816-3), 4 x SPI, 5 x I2C, 4 x I2S, 1 x SDHC
  • CRC controller supporting CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes
  • 1 x Quadrature Encoder Interface (QEI)
  • 24-ch 16-bit PWM
  • 10-ch 12-bit ADC
  • 2 x 12-bit DAC
  • 2 x analog comparator
  • 1 x operational amplifier
  • temperature sensor with 1 °C resolution
  • LDO regulator
  • 8-level BOD with Reset function
 512 KB 160 KB configurable 4 KB ISP
IAP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
12 MHz
10 kHz		 1.8 – 3.6 -40 – +105 QFN-33 P