[어보브반도체(주)]

The A31S134 is a 32-bit microcontroller based on the energy efficient ARM Cortex-M0+ core, with up to 128 KB of code flash memory, 4 KB of data flash memory, and 16 KB of SRAM. The A31S134 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. It features a variety of peripherals, including 16-bit and 32-bit timers, a 12-bit ADC, a CRC generator, as well as UART, USART, I2C, SPI, and DMA. In addition, the device is equipped with a POR, LVR, LVI, and an internal RC oscillator. To further reduce power consumption, the A31S134 supports both SLEEP and DEEP-SLEEP modes.

Product Spec

Availability	Mass Production
Core	CM0+
Op. Freq. (MHz)	32
Flash (Kbytes)	128
Data Flash (Kbytes)	4
RAM (Kbytes)	16
Pin Count
Max I/O Pins	29
Timer (8-bit)
Timer (16-bit)	6
Timer (32-bit)	2
Watch Dog Timer	1
PWM (8-bit)
PWM (16-bit)
3-phase PWM (16-bit)
ADC (bit)	12-bit
ADC (12-bit)(Unit)	1
ADC (ch)	8
ADC Speed (ksps)	50
DMA (ch)	2
DAC (bit)
Number of OP Amp.
Number of PGA
Number of Comparator
USART (ch)	3
UART (ch)	1
SPI (ch)	2
I2C (ch)	2
I2S (ch)
USB FS	N
USI
LCD Driver
LED Driver / High current port	8
HSI Freq. (MHz)
HSI Err. (±%) 85	6
HSI Err. (±%) 105	2
Sub. X-tal Support	Y
Ext. X-tal Support	Y
Touch Key (ch)
ISP	N
CRC	Y
Min Op Voltage (V)	1.8
Max Op Voltage (V)	5.5
Min Op Temp (℃)	-40
Max Op Temp (℃)	85 / 105
Remarks	LDO, POR, WT, CRC-16/CCITT
Package	32-QFN
Package Size (mm)	5x5-0.5