[어보브반도체(주)]

A31G111 / A31G112 have maximum of 32 Kbytes of Flash and 4 Kbytes SRAM based on ARM Cortex M0+ Core. The operating voltage of these devices are from 1.8V to 5.5V. They are powerful microcontrollers which provide highly flexible and cost effective solution to many embedded control applications. The products have 16-bit timers, 32-bit timers, 16-bit timer with 6-channel PWM, 12-bit ADC, CRC generator, UART, USART, I2C, LCD driver/controller and etc. The products also have POR, LVR, LVI, and internal RC oscillator. A31G111 / A31G112 also support sleep and deep sleep mode to reduce power consumption.

Product Spec

Availability	Mass Production
Core	CM0+
Op. Freq. (MHz)	40
Flash (Kbytes)	32
Data Flash (Kbytes)	0
RAM (Kbytes)	4
Pin Count	32
Max I/O Pins	29
Timer (8-bit)	0
Timer (16-bit)	4
Timer (32-bit)	2
Watch Dog Timer	1
PWM (8-bit)	0
PWM (16-bit)	0
3-phase PWM (16-bit)	1
ADC (bit)	12-bit
ADC (12-bit)(Unit)	1
ADC (ch)	5
ADC Speed (ksps)	50
DMA (ch)	0
DAC (bit)	0
Number of OP Amp.	0
Number of PGA	0
Number of Comparator	0
USART (ch)	2
UART (ch)	2
SPI (ch)	0
I2C (ch)	2
I2S (ch)	0
USB FS	N
USI	0
LCD Driver	16x8
LED Driver / High current port	6
HSI Freq. (MHz)	40
HSI Err. (±%) 85	3.5
HSI Err. (±%) 105	4.5
Sub. X-tal Support	Y
Ext. X-tal Support	Y
Touch Key (ch)
ISP	Y
CRC	Y
Min Op Voltage (V)	1.8
Max Op Voltage (V)	5.5
Min Op Temp (℃)	-40
Max Op Temp (℃)	105
Remarks	LDO, POR, WT, CRC-16/CCITT
Package	32-QFN
Package Size (mm)	5x5-0.5