[어보브반도체(주)]

The A31G346 is a 32-bit microcontroller based on the energy efficient Arm Cortex-M0+ core, with up to 256 KB of code Flash memory, and 32 KB of SRAM. The A31G346 operates at voltage range of 1.8 V to 5.5 V, providing a highly flexible and cost-effective solution for many embedded control applications. The A31G346 features a variety of peripherals, including 16-bit and 32-bit timers, Real timer, and calendar, a 12-bit ADC, CRC generator, as well as USART, I2C, SPI, and DMA. In addition, this device is equipped with a POR, LVR, LVI, and an internal RC oscillator. To further reduce power consumption, the A31G346 supports both SLEEP and DEEP-SLEEP modes.

Product Spec

Availability	Mass Production
Core	CM0+
Op. Freq. (MHz)	48
Flash (Kbytes)	256
Data Flash (Kbytes)
RAM (Kbytes)	32
Pin Count	48
Max I/O Pins	39
Timer (16-bit)	6
Timer (32-bit)	2
Watch Dog Timer	1
PWM (16-bit)
3-phase PWM (16-bit)
ADC (12-bit)(Unit)	1
ADC (ch)	7
ADC Speed (ksps)	1000
DMA (ch)	4
DAC (bit)
Number of OP Amp.
Number of PGA
Number of Comparator
USART (ch)	4
UART (ch)
SPI (ch)	2
I2C (ch)	3
USB FS
LCD Driver
LED Driver / High current port
HSI Freq. (MHz)
HSI Err. (±%) 85	6
HSI Err. (±%) 105	2
Sub. X-tal Support	Y
Ext. X-tal Support	Y
Touch Key (ch)
CRC	Y
Min Op Voltage (V)	1.8
Max Op Voltage (V)	5.5
Min Op Temp (℃)	-40
Max Op Temp (℃)	85
Remarks	LDO, POR, RTCC, CRC
Package	48-QFN
Package Size (mm)	6x6-0.4