STC micro STC8A8K64D4 Series Reference Manual page 23

STC8A8K64D4 Series Manual
CCP3_2/PWM6/A14/P2.6
RxD3/ADC8/AD0/P0.0
TxD3/ADC9/AD1/P0.1
RxD4/ADC10/AD2/P0.2
TxD4/ADC11/AD3/P0.3
T3/ADC12/AD4/P0.4
T3CLKO/ADC13/AD5/P0.5
T4/ADC14/AD6/P0.6
T4CLKO/AD7/P0.7
Looking at the chip silk screen, the small dot at the
bottom left is the first Pin.
Looking at the chip silkscreen, the last letter
of the bottom line is the chip version number
34
PWM7/A15/P2.7 35
36
37
38
RxD_4/WR/P4.3
39
40
41
42
43
44
Note:
If USB download is not required,
P3.0/P3.1/P3.2 cannot be low at the
same time when the chip is reset,
otherwise, the chip will always be
in USB download mode without
running user code.
22 P3.4/T0/T1CLKO/MOSI_4/CMPO
21 P3.3/INT1/CCP0_4/MISO_4/I2CSDA_4
20 P3.2/INT0/CCP1_4/SCLK_4/I2CSCL_4
19 P3.1/TxD/CCP2_4
18 P3.0/RxD/CCP3_4/INT4
LQFP44
17 P4.0/WR_3/RxD2_2
16 Gnd
15 P5.5
14 Vcc
13 P5.4/NRST/MCLKO
12 ADC_AVcc
-
MCU-VCC
22u 0.1u
STC
1 st pin
STC
1 st pin
STC
1 st pin
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