ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢄ
ꢅ
ꢆ
ꢀ
ꢁ
ꢂ
ꢃ
ꢇ
ꢀ
ꢄ
ꢄ
ꢅ
ꢆ
ꢀ
ꢁ
ꢈ
ꢃ
ꢄ
ꢄ
ꢉꢊꢋ ꢇ ꢌ ꢍꢁ ꢍꢀ ꢎꢋꢏꢇ ꢐ ꢌ ꢊꢇꢎ ꢑꢒ ꢑ ꢏꢓ ꢋꢎꢍ ꢓ
ꢅ
ꢆ
ꢀ
ꢁ
ꢈ
ꢃ
ꢇ
ꢀ
ꢄ
ꢄ
ꢅ
ꢀ
ꢀ
ꢔ
ꢑ
ꢎ
ꢕ
ꢀ
ꢖ
ꢕ
ꢌ
ꢑ
ꢎ
ꢎ
ꢗ
ꢎ
ꢓ
ꢑ
ꢘ
ꢘ
ꢐ
ꢓ
ꢑ
ꢁ
ꢙ
ꢊ
ꢎ
SDLS213B − DECEMBER 1983 − REVISED NOVEMBER 2004
SN54221, SN54LS221 . . . J PACKAGE
SN74221 . . . N PACKAGE
SN74LS221 . . . D, DB, N, OR NS PACKAGE
(TOP VIEW)
D
D
Dual Versions of Highly Stable SN54121
and SN74121 One Shots
SN54221 and SN74221 Demonstrate
Electrical and Switching Characteristics
That Are Virtually Identical to the SN54121
and SN74121 One Shots
1A
1B
1CLR
1Q
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
1R /C
ext ext
1C
1Q
2Q
2CLR
2B
D
D
Pinout Is Identical to the SN54123,
SN74123, SN54LS123, and SN74LS123
ext
2Q
Overriding Clear Terminates Output Pulse
2C
ext
MAXIMUM
OUTPUT
PULSE
2R /C
ext ext
GND
2A
TYPE
LENGTH(S)
SN54221
21
28
49
70
SN54LS221 . . . FK PACKAGE
(TOP VIEW)
SN74221
SN54LS221
SN74LS221
description/ordering information
3
2
1
20 19
18
1C
1Q
1CLR
1Q
4
5
6
7
8
ext
The ’221 and ’LS221 devices are dual
multivibrators with performance characteristics
virtually identical to those of the ’121 devices.
Each multivibrator features a negative-transition-
triggered input and a positive-transition-triggered
input, either of which can be used as an inhibit
input.
17
16
15
14
NC
NC
2Q
2Q
2CLR
2C
ext
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
SN74221N
SN74221N
PDIP − N
SOIC − D
Tube
SN74LS221N
SN74LS221D
SN74LS221DR
SN74LS221NSR
SN74LS221DBR
SNJ54221J
SN74LS221N
Tube
0°C to 70°C
LS221
Tape and reel
Tape and reel
Tape and reel
SOP − NS
74LS221
SSOP − DB
LS221
SNJ54221J
SNJ54LS221J
CDIP − J
Tube
Tube
SNJ54LS221J
SNJ54LS221FK
−55°C to 125°C
LCCC − FK
SNJ54LS221FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
ꢙ
ꢙ
ꢓ
ꢍ
ꢩ
ꢉ
ꢤ
ꢠ
ꢊ
ꢖ
ꢢ
ꢎ
ꢣ
ꢭ
ꢑ
ꢝ
ꢍ
ꢛ
ꢞ
ꢁ
ꢜ
ꢉ
ꢋ
ꢎ
ꢋ
ꢚ
ꢛ
ꢥ
ꢤ
ꢜ
ꢝ
ꢣ
ꢣ
ꢞ
ꢟ
ꢠ
ꢠ
ꢛ
ꢡ
ꢡ
ꢚ
ꢚ
ꢦ
ꢝ
ꢝ
ꢞ
ꢛ
ꢛ
ꢝ
ꢚ
ꢢ
ꢢ
ꢦ
ꢢ
ꢣ
ꢤ
ꢞ
ꢞ
ꢥ
ꢥ
ꢛ
ꢡ
ꢠ
ꢟ
ꢢ
ꢢ
ꢢ
ꢛ
ꢝ
ꢜ
ꢦ
ꢤ
ꢧ
ꢢ
ꢢ
ꢨ
ꢚ
ꢣ
ꢠ
ꢢ
ꢡ
ꢚ
ꢡ
ꢮ
ꢝ
ꢞ
ꢛ
ꢤ
ꢩ
ꢠ
ꢛ
ꢩ
ꢡ
ꢡ
ꢥ
ꢢ
ꢥ
ꢪ
Copyright 2004, Texas Instruments Incorporated
ꢍ ꢛ ꢦ ꢞ ꢝꢩ ꢤꢣ ꢡꢢ ꢣꢝ ꢟꢦ ꢨꢚ ꢠꢛ ꢡ ꢡꢝ ꢌꢑ ꢇꢗ ꢙꢓ ꢰ ꢗꢱꢲꢂ ꢱꢂꢆ ꢠꢨꢨ ꢦꢠ ꢞ ꢠ ꢟꢥ ꢡꢥꢞ ꢢ ꢠ ꢞ ꢥ ꢡꢥ ꢢꢡꢥ ꢩ
ꢞ
ꢝ
ꢣ
ꢡ
ꢝ
ꢞ
ꢟ
ꢡ
ꢝ
ꢢ
ꢦ
ꢚ
ꢜ
ꢚ
ꢣ
ꢥ
ꢞ
ꢡ
ꢫ
ꢡ
ꢥ
ꢞ
ꢝ
ꢜ
ꢎ
ꢥ
ꢬ
ꢠ
ꢑ
ꢛ
ꢟ
ꢥ
ꢢ
ꢡ
ꢠ
ꢛ
ꢩ
ꢞ
ꢩ
ꢠ
ꢡ ꢥ ꢢ ꢡꢚ ꢛꢯ ꢝꢜ ꢠ ꢨꢨ ꢦꢠ ꢞ ꢠ ꢟ ꢥ ꢡ ꢥ ꢞ ꢢ ꢪ
ꢞ
ꢠ
ꢛ
ꢡ
ꢮ
ꢪ
ꢙ
ꢞ
ꢝ
ꢩ
ꢡ
ꢚ
ꢝ
ꢣ
ꢥ
ꢢ
ꢚ
ꢛ
ꢯ
ꢩ
ꢝ
ꢥ
ꢝ
ꢡ
ꢛ
ꢥ
ꢣ
ꢥ
ꢢ
ꢠ
ꢞ
ꢚ
ꢨ
ꢚ
ꢛ
ꢣ
ꢨ
ꢤ
ꢤ ꢛꢨ ꢥꢢꢢ ꢝ ꢡꢫꢥ ꢞ ꢭꢚ ꢢꢥ ꢛ ꢝꢡꢥ ꢩꢪ ꢍ ꢛ ꢠꢨ ꢨ ꢝ ꢡꢫꢥ ꢞ ꢦꢞ ꢝ ꢩꢤꢣ ꢡꢢ ꢆ ꢦꢞ ꢝ ꢩꢤꢣ ꢡꢚꢝ ꢛ
ꢡ
ꢦ
ꢞ
ꢝ
ꢣ
ꢥ
ꢢ
ꢢ
ꢚ
ꢛ
ꢯ
ꢩ
ꢝ
ꢥ
ꢢ
ꢛ
ꢝ
ꢡ
ꢛ
ꢥ
ꢣ
ꢥ
ꢢ
ꢢ
ꢠ
ꢞ
ꢚ
ꢨ
ꢮ
ꢚ
ꢛ
ꢣ
ꢨ
ꢤ
ꢩ
ꢥ
ꢡ
ꢥ
ꢢ
ꢚ
ꢛ
ꢯ
ꢝ
ꢜ
ꢠ
ꢨ
ꢨ
ꢦ
ꢠ
ꢞ
ꢠ
ꢟ
ꢥ
ꢡ
ꢥ
ꢞ
ꢢ
ꢪ
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5秒后页面跳转
电子元器件中的网络滤波器、EMI滤波器与EMC滤波器：分类关系与功能详解
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
