[어보브반도체(주)]

The ultra-low power A31L12x series is a microcontroller based on ARM Cortex-M0+ core with a flash memory of up to 64 Kbytes with an SRAM of 8KB. The operation voltage range of the device is from 1.65V to 3.6V. A31L12x series provide a highly flexible and cost effective solution for many battery operated applications. The ultra-low power A31L12x series has a 16-bit timers, real timer and a calendar as well as 12-bit ADC, comparator, CRC generator, UART, USART, I2C, SPI. The series is also equipped with smart card interface, LCD driver/controller, DMA, along with POR, LVR, LVI, and an internal RC oscillator. To reduce system power consumption, A31L12x devices also provide various power modes and ultra-low-power peripherals such as LPUART and LP timer. The A31L12x series is suitable for ultra-low power applications that require long battery life.

Product Spec

Availability	Mass Production
Core	CM0+
Op. Freq. (MHz)	32
Flash (Kbytes)	64
Data Flash (Kbytes)	0
RAM (Kbytes)	8
Pin Count	32
Max I/O Pins	26
Timer (8-bit)	0
Timer (16-bit)	5
Timer (32-bit)	0
Watch Dog Timer	1
PWM (8-bit)	0
PWM (16-bit)	0
3-phase PWM (16-bit)	0
ADC (bit)	12-bit
ADC (12-bit)(Unit)	1
ADC (ch)	10
ADC Speed (ksps)	1
DMA (ch)	5
DAC (bit)	0
Number of OP Amp.	0
Number of PGA	0
Number of Comparator	2
USART (ch)	1
UART (ch)	2
SPI (ch)	1
I2C (ch)	1
I2S (ch)	0
USB FS	N
USI	0
LCD Driver	11x3
LED Driver / High current port	0
HSI Freq. (MHz)	32
HSI Err. (±%) 85	3.5
HSI Err. (±%) 105	4.5
Sub. X-tal Support	Y
Ext. X-tal Support	N
Touch Key (ch)	0
ISP	Y
CRC	Y
Min Op Voltage (V)	1.65
Max Op Voltage (V)	3.6
Min Op Temp (℃)	-40
Max Op Temp (℃)	105
Remarks	RTCC, LPUART, LP Timer, SC
Package	32-LQFP
Package Size (mm)	7x7-0.8