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参数资料
| 型号： | MM74HC221AMX |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 谐振器 |
| 英文描述： | HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16 |
| 封装： | 0.150 INCH, MS-012, SOIC-16 |
| 文件页数： | 1/9页 |
| 文件大小： | 117K |
| 代理商： | MM74HC221AMX |
2004 Fairchild Semiconductor Corporation
DS005325
www.fairchildsemi.com
September 1983
Revised January 2004
MM74HC221A
Dual
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MM74HC221A
Dual Non-Retriggerable Monostable Multivibrator
General Description
The MM74HC221A high speed monostable multivibrators
(one shots) utilize advanced silicon-gate CMOS technol-
ogy. They feature speeds comparable to low power Schot-
tky TTL circuitry while retaining the low power and high
noise immunity characteristic of CMOS circuits.
Each multivibrator features both a negative, A, and a posi-
tive, B, transition triggered input, either of which can be
used as an inhibit input. Also included is a clear input that
when taken low resets the one shot. The MM74HC221A
can be triggered on the positive transition of the clear while
A is held LOW and B is held HIGH.
The MM74HC221A is a non-retriggerable, and therefore
cannot be retriggered until the output pulse times out.
Pulse width stability over a wide range of temperature and
supply is achieved using linear CMOS techniques. The out-
put pulse equation is simply: PW
= (R
EXT) (CEXT); where
PW is in seconds, R is in ohms, and C is in farads. All
inputs are protected from damage due to static discharge
by diodes to VCC and ground.
Features
s Typical propagation delay: 40 ns
s Wide power supply range: 2V–6V
s Low quiescent current: 80
A maximum (74HC Series)
s Low input current: 1
A maximum
s Fanout of 10 LS-TTL loads
s Simple pulse width formula T
= RC
s Wide pulse range: 400 ns to
∞ (typ)
s Part to part variation:
±5% (typ)
s Schmitt Trigger A & B inputs enable infinite signal input
rise or fall times
Ordering Code:
Note 1: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
Top View
Timing Component
Note: Pin 6 and Pin 14 must be hard-wired to GND.
Order Number
Package Number
Package Description
MM74HC221AM
(Note 1)
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
MM74HC221ASJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC221AN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
相关PDF资料 |
PDF描述 |
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| MM74HC245N | HC/UH SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20 |
| MM74HC245J | HC/UH SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20 |
| MM74HC368N | HC/UH SERIES, 6-BIT DRIVER, INVERTED OUTPUT, PDIP16 |
| MM74HC366J | HC/UH SERIES, 6-BIT DRIVER, INVERTED OUTPUT, CDIP16 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74HC221AN | 功能描述:单稳态多谐振荡器 Dl Monostab Multivib RoHS:否 制造商:Texas Instruments 每芯片元件:1 逻辑系列:LVC 逻辑类型:Monostable Multivibrator 封装 / 箱体:SSOP-8 传播延迟时间:18.6 ns 高电平输出电流:- 32 mA 低电平输出电流:32 mA 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| MM74HC221ASJ | 功能描述:单稳态多谐振荡器 RoHS:否 制造商:Texas Instruments 每芯片元件:1 逻辑系列:LVC 逻辑类型:Monostable Multivibrator 封装 / 箱体:SSOP-8 传播延迟时间:18.6 ns 高电平输出电流:- 32 mA 低电平输出电流:32 mA 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| MM74HC221ASJX | 功能描述:单稳态多谐振荡器 RoHS:否 制造商:Texas Instruments 每芯片元件:1 逻辑系列:LVC 逻辑类型:Monostable Multivibrator 封装 / 箱体:SSOP-8 传播延迟时间:18.6 ns 高电平输出电流:- 32 mA 低电平输出电流:32 mA 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| MM74HC237 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3-to-8 Line Decoder With Address Latches |
| MM74HC237J | 制造商:NSC 制造商全称:National Semiconductor 功能描述:3-to-8 Line Decoder With Address Latches |
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