1 2 3 4 5 6
1 2 3 4 5 6
A
B
C
D
A
B
C
D
Date:
KiCad E.D.A. kicad (5.1.4)-1
Rev: Size: A4
Id: 1/1
Title:
File: CH372.sch
Sheet: /
GND
GND
GND
K2
K1
+5V
+5V
R3
1K
C4 0.01uF
VBUS
1
D-
2
D+
3
ID
4
GND
5
Shield
6
J2
USB_B_Micro
+5V
GND
K3
R1
10K
+5V
GND
+5V
1
2
3
4
J1
OLED
GND
INT
1
D0
10
D1
11
D2
12
D3
13
D4
14
D5
15
D6
16
D7
17
GND
18
CS
19
WR
2
VCC
20
RD
3
A0
4
V3
5
UD+
6
UD-
7
XI
8
XO
9
U2
CH372
Y2
12M
C5 30pF
C6 30pF
GND
P1.0/T2
1
P3.0/RxD
10
P3.1/TxD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.5/T1
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
P1.1/T2EX
2
GND
20
P2.0
21
P2.1
22
P2.2
23
P2.3
24
P2.4
25
P2.5
26
P2.6
27
P2.7
28
PSEN
29
P1.2
3
ALE
30
EA
31
P0.7
32
P0.6
33
P0.5
34
P0.4
35
P0.3
36
P0.2
37
P0.1
38
P0.0
39
P1.3
4
VCC
40
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
U1
STC89C52RC
GND
C2 22pF
C1 22pF
Y1
11.0592M
GND
+5V
+5V
+5V
D1
LED
C3 104
R2
10K
12
3
4
5
6
7
8
9
RN1
SDA
D1
SCL
D0
K3
K2
K1
D1
D2
D3
D4
D5
D6
D-
D+
K1
K2
K3
D7
CS
INT
D6
D7
D-
D+
D5
A0
D4
D3
RD
WR
D2
CS
D0
RD
WR
A0
SCL
INT
SDA
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