74系列芯片
74系列芯片资料P ost By：2009-9-30 11:21:46
反相器驱动器LS04 LS05 LS06 LS07 LS125 LS245与门与非门LS00 LS08 LS10 LS30 或门或非门与或非门LS02 LS32 LS51 LS64 LS65 异或门比较器LS86 LS688译码器
LS138 LS139
寄存器LS74 LS373
反相器:
Vcc 6A 6Y 5A 5Y 4A 4Y 六非门74LS04
┌┴─┴─┴─┴─┴─┴─┴┐ 六非门(OC门) 74LS05
│14n 13 12 11 10 9 8 │ 六非门(OC高压输出) 74LS06Y = A
）│
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1A 1Y 2A 2Y 3A 3Y GND
驱动器:
Vcc 6A 6Y 5A 5Y 4A 4Y
┌┴─┴─┴─┴─┴─┴─┴┐
│14 13 12 11 10 9 8│ Y = A
）│ 六驱动器(OC高压输出) 74LS07
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1A 1Y 2A 2Y 3A 3Y GND
Vcc -4C 4A 4Y -3C 3A 3Y
┌┴─┴─┴─┴─┴─┴─┴┐
│14 13 12 11 10 9 8│Y =A+C
）│ 四总线三态门74LS125
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
-1C 1A 1Y -2C 2A 2Y GND
Vcc -G B1 B2 B3 B4 B8 B6 B7 B8
┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位总线驱动器74LS245 │20 19 18 17 16 15 14 13 12 11│
）│ DIR=1 A=>B
│ 1 2 3 4 5 6 7 8 9 10│ DIR=0 B=>A
└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘
DIR A1 A2 A3 A4 A5 A6 A7 A8 GND
正逻辑与门,与非门:
Vcc 4B 4A 4Y 3B 3A 3Y
┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四正与门74LS08
│14 13 12 11 10 9 8 │Y = AB
）│
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1A 1B 1Y 2A 2B 2Y GND
Vcc 4B 4A 4Y 3B 3A 3Y
┌┴─┴─┴─┴─┴─┴─┴┐
│14 13 12 11 10 9 8 │Y = AB
）│ 2输入四正与非门74LS00
│ 1 2 3 4 5 6 7│
└┬─┬─┬─┬─┬─┬─┬┘
1A 1B 1Y 2A 2B 2Y GND
Vcc 1C 1Y 3C 3B 3A 3Y
┌┴─┴─┴─┴─┴─┴─┴┐3输入三正与非门74LS10
│14 13 12 11 10 9 8│
）│ Y = ABC
│ 1 2 3 4 5 6 7│
└┬─┬─┬─┬─┬─┬─┬┘
Vcc H G Y
┌┴─┴─┴─┴─┴─┴─┴┐
│14 13 12 11 10 9 8│
）│ 8输入与非门74LS30
│ 1 2 3 4 5 6 7 │ ________
└┬─┬─┬─┬─┬─┬─┬┘ Y = ABCDEFGH
A B C D E F GND
正逻辑或门,或非门:
Vcc 4B 4A 4Y 3B 3A 3Y
┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或门74LS32 │14 13 12 11 10 9 8│
）│ Y = A+B
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1A 1B 1Y 2A 2B 2Y GND
Vcc 4Y 4B 4A 3Y 3B 3A
┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或非门74LS02 │14 13 12 11 10 9 8 │ ___
）│ Y = A+B
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1Y 1A 1B 2Y 2A 2B GND
Vcc 2Y 2B 2A 2D 2E 1F
┌┴─┴─┴─┴─┴─┴─┴┐ 双与或非门74S51
│14 13 12 11 10 9 8 │ _____
）│ 2Y = AB+DE
│ 1 2 3 4 5 6 7│ _______
└┬─┬─┬─┬─┬─┬─┬┘ 1Y = ABC+DEF
Vcc D C B K J Y
┌┴─┴─┴─┴─┴─┴─┴┐ 4-2-3-2与或非门74S64 74S65(OC门) │14 13 12 11 10 9 8│ ______________
）│ Y = ABCD+EF+GHI+JK
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
A E F G H I GND
2输入四异或门74LS86
Vcc 4B 4A 4Y 3Y 3B 3A
┌┴─┴─┴─┴─┴─┴─┴┐
│14 13 12 11 10 9 8 │
）│ _ _
│ 1 2 3 4 5 6 7│ Y=AB+AB
└┬─┬─┬─┬─┬─┬─┬┘
1A 1B 1Y 2Y 2A 2B GND
8*2输入比较器74LS688
_
Vcc Y B8 A8 B7 A7 B6 A6 B5 A5
┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器74LS688
│20 19 18 17 16 15 14 13 12 11│
）│
│ 1 2 3 4 5 6 7 8 9 10│
└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘
CE A1 B1 A2 B2 A3 B3 A4 B4 GND
_
Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8
3-8译码器74LS138
Vcc -Y0 -Y1 -Y2 -Y3 -Y4 -Y5 -Y6
┌┴─┴─┴─┴─┴─┴─┴─┴┐
│16 15 14 13 12 11 10 9 │
）│
│ 1 2 3 4 5 6 7 8│
└┬─┬─┬─┬─┬─┬─┬─┬┘
A B C -CS0 -CS1 CS2 -Y7 GND
双2-4译码器74LS139
Vcc -2G 2A 2B -Y0 -Y1 -Y2 -Y3
┌┴─┴─┴─┴─┴─┴─┴─┴┐
│16 15 14 13 12 11 10 9 │
）│
│ 1 2 3 4 5 6 7 8│
└┬─┬─┬─┬─┬─┬─┬─┬┘
-1G 1A 1B -Y0 -Y1 -Y2 -Y3 GND
8*2输入比较器74LS688
_
Vcc Y B8 A8 B7 A7 B6 A6 B5 A5
┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器74LS688
│20 19 18 17 16 15 14 13 12 11│
）│
│ 1 2 3 4 5 6 7 8 9 10│
└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘
CE A1 B1 A2 B2 A3 B3 A4 B4 GND
_
Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8
寄存器:
Vcc 2CR 2D 2Ck 2St 2Q -2Q
┌┴─┴─┴─┴─┴─┴─┴┐ 双D触发器74LS74
│14 13 12 11 10 9 8│
）│
│ 1 2 3 4 5 6 7 │
└┬─┬─┬─┬─┬─┬─┬┘
1Cr 1D 1Ck 1St 1Q -1Q GND
Vcc 8Q 8D 7D 7Q 6Q 6D 5D 5Q ALE
┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位锁存器74LS373
│20 19 18 17 16 15 14 13 12 11│
）│
│ 1 2 3 4 5 6 7 8 9 10│
└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘
-OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND