STC micro STC8A8K64D4 Series - Pin Descriptions

STC8A8K64D4 Series Manual
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2.1.3 Pin descriptions
Pin number
name
type
description
LQFP64
LQFP48
LQFP44
PDIP40
1
1
P5.2
I/O
Standard IO port
RxD4_2
I
Serial input of UART4
2
2
P5.3
I/O
Standard IO port
TxD4_2
O
Serial Transmit pin of UART4
3
3
2
7
P1.1
I/O
Standard IO port
ADC1
I
ADC analog input 1
PWM1_2
O
Output pin of Enhance PWM 1
TxD2
O
Serial Transmit pin of UART2
4
4
3
8
P1.2
I/O
Standard IO port
ADC2
I
ADC analog input 2
PWM2_2
O
Output pin of Enhance PWM2
SS
I/O
Slave selection of SPI
T2
I
T2 input
ECI
I
External pulse input of PCA
ADC_ETR
I
ADC external trigger input
5
5
4
9
P1.3
I/O
Standard IO port
ADC3
I
ADC analog input 3
PWM3_2
O
Enhanced PWM channel 3 output pin
MOSI
I/O
Master Output/Slave Input of SPI
T2CLKO
O
Clock out of timer 2
6
P6.0
I/O
Standard IO port
PWM0_3
O
Enhanced PWM channel 0 output pin
7
P6.1
I/O
Standard IO port
PWM1_3
O
Enhanced PWM channel 1 output pin
8
P6.2
I/O
Standard IO port
PWM2_3
O
Enhanced PWM channel 2 output pin
9
P6.3
I/O
Standard IO port
PWM3_3
O
Enhanced PWM channel 3 output pin