单片机最小系统实验板电路图

A
PW2
R10 300
R11 300
R12 300 D0 D1 D2 D3 D4 D5 D6 D7
R13 300
VCC VCC VCC AD0/P0.0 AD1/P0.1 AD2/P0.2 AD3/P0.3 AD4/P0.4 AD5/P0.5 AD6/P0.6 AD7/P0.7 !EA/VPP ALE/!PROG !PSEN A15/P2.7 A14/P2.6 A13/P2.5 A12/P2.4 A11/P2.3 A10/P2.2 AP/P2.1 A8/P2.0 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 D0 D1 D2 D3 D4 D5 D6 D7 1 2 3 4 5 6 7 8 9
ቤተ መጻሕፍቲ ባይዱP1.4 P1.5 P1.6 P1.7 BL R4 10K
VCC
Header 4X2A
Q1 8550 R3 GND D7 D6 D5 D4 D3 D2 D1 D0 E RW RS VCC R1 300 GND
P1 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Header 16
C4 100uF 1N4007 1N4007
C1 100uF
S1
s1 a b s2 s3 f c d dp e g s4
PWR2.5
7SEG-MPX4-CA
B VCC GND PW1 S2 PW2 J2 SW-DPDT TXD USB-F GND D3 1N4148 Bell GND VCC C J3 VCC 11 10 LED2 1 6 2 7 3 8 4 9 5 DB9 C3 10u 1 3 4 5 C2 11 TXD 10 13 8 15 10u U1 C1+ C1C2+ C2T1IN T2IN R1IN R2IN GND MAX232N VCC VS+ VST1OUT T2OUT R1OUT R2OUT 16 2 6 C6 10u 14 7 12 9 RXD 100u C5 10u C7 VCC R15 300 LED1 D4 1N4148 RXD BELL VCC Q7 8550
D0 D1 D2 D3
R18 300 R19 300 R20 300 R21 300 R22 300 R23 300 R24 300 R25 300 LED10 LED3 LED4 C LED5 LED6 LED7 LED8 LED9
KEY R2 K12 KEY R3 K16 KEY C3 D6 D7 D4 D5
1
2 VCC P2 1 2 3 4
3
4
S1 R5 A VR1 Vin 7805 D1 1N4007 J1 2 3 1 D5 D6 D2 1N4007 Vout GND 51K
Q2 8550
S2 R6 51K
Q3 8550
S3 R7 51K
Q4 8550
S4 R8 51K
Q5 8550 GND U2
5 6 7 8
R17 51K
BELL
S1 1 P1.0/T2 S2 2 P1.1/T2 EX S3 3 P1.2 S4 4 P1.3 P1.4 5 P1.4 K17 P1.5 6 C8 P1.5/MOSI KEY P1.6 7 10u P1.6/MISO P1.7 8 P1.7/SCK 9 RST RXD 10 P3.0/RXD R9 TXD 11 P3.1/TXD 20K BELL 12 P3.2/!INT0 BL 13 P3.3/!INT1 LEN 14 P3.4/T0 RS 15 P3.5/T1 RW 16 GND P3.6/!WR E 17 P3.7/!RD 18 XTAL2 19 1 2 XTAL1 C10 X1 20 GND C9 12M 30P 30P AT89S52
R16 300
GND D Title 51单片机实验板 Size A4 Date: File: 1 2 3 Company Studio Yaresoft Modified Date: 2007-05-19 Sheet1.SchDoc Sheet of Drawn By: 4 YIZ Revision V1.0 / D
RM1
10
10K R3 R2 R1 R0 C3 C2 C1 C0
R2
47K
B VCC
LEN
R14 1K
Q6 8550
R0 K1 KEY K5 KEY K9 KEY K13 KEY C0 C1 K2 KEY K6 KEY K10 KEY K14 KEY K3 KEY K7 KEY K11 KEY K15 KEY C2 K4 KEY R1 K8