C51单片机原理图

IC2 RXD C5 104 TXD VCC1 1 2 3 4 5 6 7 8 9 10 11 12 13 14
PL2303 28 27 X2 12M 26 25 24 23 C4 C3 22 22P 22P 21 20 19 VCC1 18 17 16 D15 D+ R1
RDX OSC2 DTR_N OSC1 RTS_N PLL_TEST VDD232 GND_PLL RXD VDD_PLL RI_IN LD_MODE GND TRI_MODE VDD GND DSR_N VDD DCD-N RESET CTS_N GND3V3 SHTD_N VDD3V3 EE_CLK DM EE_DATA DP
51 AVR 1 2 3 R4 1K STR
A P5 2 1 SPEK RL1
标准AT ISP下载接口
P1.5 RESET P1.7 P1.6 VCC 1 2 1 3 5 7 9 2 4 6 8 10 VCC R5 10K
红外接收 18B20温度传感器
GND
紧锁 外扩插针
晶振 32768
P3.1
8
9
J2 1 2
P1.5 P1.3 P1.2 P1.1 P1.0
P1.4
IC11 IC10 P1 GND VCC GND RF 1 2 3 A1838 P1.7 P1.6 VCC 18B20 VCC
BT1 (3V)
VCC
5 4 3 2 1 P6
GND I/O VCC
D C B A
P0
P3.2
4
5
6
7
C6 10UF
VCC
PR2 470-5.1K都可以
GND 1 2 3 4 1 3 5 7
8位LED发光管
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 NTC1 温度电阻 22P C8 X1 20 19 18 17 16 15 14 13 IO 11 10 9 8 7 6 5 4 3 2 1 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 LED1 红色 P2.7 P3.7 1 P3.6 2 P3.5 3 P3.4 4 P3.3 5 P3.2 6 TXD P3.1 7 RXD P3.0 8 STR P1.7 1 P1.6 2 P1.5 3 P1.4 4 P1.3 5 P1.2 6 P1.1 7 P1.0 8 VCC LED2 红色 LED3 黄色 P2.5 LED4 黄色 LED5 红色 P2.3 LED6 红色 LED7 绿色 P2.1 LED8 绿色 22P C9 GND
VCC IC11 VCC 9 10 11 12 13 14 15 16 CLAMP OUT 7 OUT 6 OUT 5 OUT 4 OUT 3 OUT 2 OUT 1 ULN2003 COMMON IN 7 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 8 7 6 5 4 3 2 1 GND
四位共阴数码管
R1 1K GND
P2.7 P2.6 P2.5 P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 P2.4 P2.3 P2.2
P2.7 12 12 9 8 6 9 8 6
D
GND VCC KT1/10K
IC8 位控制 A B C D E F G H P2.6 1 2 3 4 5 6 7 15
a g d b c f e
a g d b c
A B C D E F G H
1 2 3 4 5 6 7 15
a a b c f b g d e e c d f dp g dp
电路图导读 a a
f e g d b c f e g d b c f e d
a g b c
LED1 GND DB1 5 9 4 8 3 7 2 6 1
5
6
!内负外正DC5V 0.02R
VCC1 FX1 DC1 DCIN D1 4007 D USB 4 3 2 1 DD+ Text C1 470UF D2 5.1V D4
红色
Fra Baidu bibliotek
汉字显示屏
LCD2 12864 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
P2.6
P2.4
P2.2
P2.0
RG1
GND
GND
P1.4 P2 J3 1 2
VCC
GND KT3
KT4
PCF8591
P3 P3.7 P3.6 P3.5 P3.4 P3.3 R2 1K1 2 3 4 1 8 CLK 2 7 I/O 3 6 RST 4 5 IC10 DS1302 8 7 6 5 P1.2 P1.1 P1.0 0 1 2 3
5V电源输出
A0 A1 A2 GND U? 8 7 6 5 4 3 2 1 CON8 8 7 6 5 4 3 2 1 VCC P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 B VCC 1 2 3 4 1 2 P4 GND 1 2 P7
J1
R6
VCC1
VCC VCC VCC WP SCL SDA 8 7 6 5
1 2 3 4 5 6 7 8 9
W1
P2.0 P2.1
R7
按下电源打开
P0口上拉排阻
PR1 10K 1 2 3 4 5 6 7 8 9 VCC
P1口上拉排阻
PR3 10K VCC 1 2 3 4 5 6 7 8 9
VCC
1 2
AD&DA电路
AD4路输入 P12 A/D 1 2 3 4
VCC KT2/10K GND
J4 2 1
数码管供电开关
VCC2
104 104 C13 C12
RII TIO
C C2 104
1K
VCC
C
串口通信
MAX232 D/A一路输出 P11 D/A 1 2
USB转串口下载电路
GND
GND
光汇科技S52-1学习实验板
光敏电阻
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
IC3 24C02
2 4 6 8
P10
IC9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 VCC VCC GND P2.0 P2.1 D3 LED B J5 1 2
E40361 104 C11 104 C10 IC11 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 16 15 14 13 12 11 10 9 VCC GND TIO RII P3.0 P3.1
LED2
E40361
IC7 段控制
P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 P2.4 P2.3 P2.2
1
2
3
4 GND P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 GND GND P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 GND 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 20 19 18 17 16 15 14 13 12 11 VCC2
英文数字屏
LCD1 1602 K A D7 D6 D5 D4 D3 D2 D1 D0 E RW RS VO VDD VSS 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
a a b c f b g d e e c d f dp g dp
a f e g d b c f e
A
B
4位对地键盘
P3.7 P3.6 P3.5 P3.4 GND P3.4 P3.5 4 P3.6 P3.7 GND 5
P3.0 Title Size B Date: File: Number
C
D
E
F
A
C7 104
P3口4*4距阵键盘
Revision 18-Sep-2012 Sheet of E:\PCB重要文件\S52-1\S52 图纸\BACKUP~1.DDB Drawn By: 6
GND SW1/51 3 SW2/AVR
HEADER 5X2