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宏晶科技:专业单片机 / 存储器供应商   www.MCU-Memory.com   STC12C5410AD 系列 1T 8051 单片机中文指南
60
A/D 转换在 P1 口, P1.0 - P1.7 共八路
10K
10K
1/2 Vcc
2/3 Vcc
3/4 Vcc
Vcc
10K
10K
10K
4/5 Vcc
  A/D 转换典型应用线路,按键扫描
DIP-28(
窄体

/ SOP-28
P2.2
28
P2.1
P2.3
27
P2.0/CEX2/PCA2/PWM2
RST
26
VDD
RxD/P3.0
25
P1.7/SCLK/ADC7
TxD/P3.1
24
P1.6/MISO/ADC6
XTAL2
23
P1.5/MOSI/ADC5
XTAL1
22
P1.4/SS/ADC4
INT0/P3.2
21
P1.3/ADC3
INT1/P3.3
20
P1.2/ADC2
ECI/T0/P3.4
10
19
P1.1/ADC1
PWM1/PCA1/CEX1/T1/P3.5
11
18
P1.0/ADC0
VSS
12
17
P3.7/CEX0/PCA0/PWM0
PWM3/PCA3/CEX3/P2.4
13
16
P2.7
P2.5
14
15
P2.6
47pF 以上