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MCU

VDD
2.1V-5.5V
2.1V-5.5V
2.1V-5.5V
ROM
30K
30K
30K
RAM
512B
512B
512B
System
Clockt
32K-9.83
MHz
32K-9.83
MHz
32K-9.83
MHz
I/O
14
18
17
LCD
--
--
--
Timer
2*16
2*16
2*16
PWM
2*16bit
2*16bit
2*16bit
Interrupt
2
2
2
SAR ADC
3 channel
8 bit
4 channel
8 bit
4 channel
8 bit
Interface
UART
UART
UART
Package
SOP16
DIP16
SOP20
DIP20
SOP20