A A
B B
C C
D D
1
1
2
2
3
3
4
4
5
5
TITLE:
STC12C5A60S2电压电流表
REV: 1.0
Date:
2022-1-12
Sheet:
1/1
Drawn By:
Company:
桃源客
LCM1602K
LCD
VSS
1
VDD
2
V0
3
RS
4
RW
5
E
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
A
15
K
16
STC12C5A60S2-35I-PDIP40
U1
VCC
40
P0.0
39
P0.1
38
P0.2
37
P0.3
36
P0.4
35
P0.5
34
P0.6
33
P0.7
32
EX_LVD/P4.6/RST2
31
ALE/P4.5
30
NA/P4.4
29
P2.7/A15
28
P2.6/A14
27
P2.5/A13
26
P2.4/A12
25
P2.3/A11
24
P2.2/A10
23
P2.1/A9
22
P2.0/A8
21
GND
20
XTAL1
19
XTAL2
18
RD#/P3.7
17
WR#/P3.6
16
CLKOUT1/INT#/T1/P3.5
15
CLKOUT0/INT#/T0/P3.4
14
INT1#/P3.3
13
INT0#/P3.2
12
TXD/P3.1
11
INT#/RXD/P3.0
10
P4.7/RST
9
SCLK/ADC7/P1.7
8
MISO/ADC6/P1.6
7
MOSI/ADC5/P1.5
6
SS/CPP1/ADC4/P1.4
5
TXD2/CPP0/ADC3/P1.3
4
RXD2/ECI/ADC2/P1.2
3
ACD1/P1.1
2
CLKOUT2/ADC0/P1.0
1
LM7805T
U3
GND
VIN
1
2
OUT
3
10K
R1
+5V
+5V
GND
GND
GND
+5V
TL431L
U5
1
32
GND
22pF
C2
22pF
C1
12MHz
X1
2k
R2
1K
R3
1K
R4
200
R5
50K
R6
1K
R7
10k
R8
+5V
GND
10mR
RI2
1
1
2
2
GND
Iin
10K
R9
Vin1
VCC
Vin2
10K
R10
10k
R11
47uF
C3
47uF
C4
GNDGND
1uF
C5
1uF
C6
GND
GND
10mR
RI1
1
1
2
2
1K
R12
10K
R13
VCC
LM358
U4.1
1
3
2
4 8
A
+5V
GND
ST-1186S
SW1
1 2
GND