STC micro STC8A8K64D4 Series Reference Manual page 22

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
RxD2/PWM0_2/ADC0/P1.0
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
37
PWM7/A15/P2.7 38
39
40
41
RxD_4/WR/P4.3
42
43
44
45
46
T4CLKO/AD7/P0.7
47
48
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.
24 P3.5/T1/T0CLKO/ECI_4/SS_4/PWMFLT
23 P3.4/T0/T1CLKO/MOSI_4/CMPO
22 P3.3/INT1/CCP0_4/MISO_4/I2CSDA_4
21 P3.2/INT0/CCP1_4/SCLK_4/I2CSCL_4
20 P3.1/TxD/CCP2_4
LQFP48
19 P3.0/RxD/CCP3_4/INT4
QFN48 18 P4.0/WR_3/RxD2_2
17 Gnd
16 P5.5
15 Vcc
14 P5.4/NRST/MCLKO
13 ADC_AVcc
-
MCU-VCC
22u 0.1u
STC
1 st pin
STC
1 st pin
STC
1 st pin
- 6 -