M031BT Series

The series of NuMicro Family ultra-low power 32-bit microcontrollers based on the ARM Cortex-M0 core with built-in RF transceiver compatible with the Bluetooth Low Energy 5.0 (BLE 5.0). They are running up to 48/72 MHz within -40 – +105 °C and are equipped with rich peripherals and interfaces.
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 *
M031BTYD2AN	operating frequency up to 48/72 MHz programmable system clock source 3 external crystal oscillators and 3 internal RC oscillators PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC 512 B of Security Protection ROM (SPROM) 5-channel PDMA up to 29 I/Os 4 x 32-bit timers Watchdog 32 interrupts interfaces: 3 x UART, 2 x I2C, USCI (configured as UART, SPI or I2C) RF transceiver for wireless applications which is fully compliant with the Bluetooth Low Energy 5.0 (BLE 5.0) standard and also supports proprietary 2.4 GHz protocols supports CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes 12-channel 16-bit PWM 16-channel 12-bit ADC 2 analog comparators LDO regulator LVR (Low Voltage Reset) 2-level BOD low power consumption in operating mode	64 KB	8 KB	configurable	2 KB	ISP ICP IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz 16/32 MHz Int. RC: 48 MHz 38.4 kHz 32 kHz	1.8 – 3.6	-40 – +85	QFN-48 (5x5 mm)	P
M031BTYE3AN (3279 KB)	operating frequency up to 48/72 MHz programmable system clock source 3 external crystal oscillators and 3 internal RC oscillators PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC 512 B of Security Protection ROM (SPROM) 5-channel PDMA up to 29 I/Os 4 x 32-bit timers Watchdog 32 interrupts interfaces: 3 x UART, 2 x I2C, USCI (configured as UART, SPI or I2C) RF transceiver for wireless applications which is fully compliant with the Bluetooth Low Energy 5.0 (BLE 5.0) standard and also supports proprietary 2.4 GHz protocols supports CRC-CCITT, CRC-8, CRC-16 and CRC-32 error-detecting codes 12-channel 16-bit PWM 16-channel 12-bit ADC 2 analog comparators LDO regulator LVR (Low Voltage Reset) 2-level BOD low power consumption in operating mode	128 KB	16 KB	configurable	4 KB	ISP ICP IAP	Ext. crystal: 4 - 32 MHz 32.768 kHz 16/32 MHz Int. RC: 48 MHz 38.4 kHz 32 kHz	1.8 – 3.6	-40 – +85	QFN-48 (5x5 mm)	P