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● 1-channel IIC bus mode serial interface
● 4-way 10 bit A/D conversion interface
● Clock monitor
● Real time control clock
● 4 chips selection/wait controller
● 34 interrupt signals output
9 CPU interrupt, 21 internal interrupt, 4 external interrupt
● 53 I/O pins
● Reserved wait function
● Clock control
fs=32.768KHz real-time time of time conversion function high frequency fc to fc/16
● Working voltage
When fc=27 MHZ, VCC=2.7~3.6V, when fc=10MHZ, VCC=1.8V to 3.6V
● 64 pin package（P-LQFP64-1010-0.50D standard）
Pin allocation description:
Pin introduction:
Pin
Designation
AVSS
1
P70/TA0IN
2
3
P71/TA1OUT
4
P72/TA3OUT
Function description
Analog ground
I²C bus data input
I²C bus clock output
PAGE signal output
13
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