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| 型号： | 74VHC123A |
| 厂商： | Fairchild Semiconductor Corporation |
| 英文描述： | Automotive Catalog Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset 14-SOIC -40 to 125 |
| 中文描述： | 双Retriggerable单稳态触发器 |
| 文件页数： | 1/9页 |
| 文件大小： | 107K |
| 代理商： | 74VHC123A |
July 1993
Revised April 1999
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www.fairchildsemi.com
74VHC123A
Dual Retriggerable Monostable Multivibrator
General Description
The VHC123A is an advanced high speed CMOS
Monostable Multivibrator fabricated with silicon gate CMOS
technology. It achieves the high speed operation similar to
equivalent Bipolar Schottky TTL while maintaining the
CMOS low power dissipation. Each multivibrator features
both a negative, A, and a positive, 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 VHC123A can be triggered on the positive
transition of the clear while A is held low and B is held high.
The output pulse width is determined by the equation:
PW
= (R
x)(Cx); where PW is in seconds, R is in ohms, and
C is in farads.
Limits for Rx and Cx are:
External capacitor, Cx No limit
External resistors, Rx VCC = 2.0V, 5 k min
VCC > 3.0V, 1 k min
An input protection circuit ensures that 0 to 7V can be
applied to the input pins without regard to the supply volt-
age. This device can be used to interface 5V to 3V systems
and two supply systems such as battery back up. This cir-
cuit prevents device destruction due to mismatched supply
and input voltages.
Features
s High Speed:
tPD = 8.1 ns (typ) at TA = 25°C
s Low Power Dissipation:
ICC = 4 A (Max) at TA = 25°C
s Active State: ICC = 600 A (Max) at TA = 25°C
s High Noise Immunity: VNIH = VNIL = 28% VCC (min)
s Power down protection is provided on all inputs
s Pin and function compatible with 74HC123A
Ordering Code:
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
IEEE/IEC
Connection Diagram
Order Number
Package Number
Package Description
74VHC123AM
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
74VHC123ASJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC123AMTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHC123AN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
相关PDF资料 |
PDF描述 |
|---|---|
| 74VHC132NX | Quad 2-Input NAND Schmitt Trigger |
| 74VHC132SJ | Quadruple 2-Input Exclusive-OR Gates 14-TSSOP -40 to 85 |
| 74VHC132SJX | Quadruple 2-Input Exclusive-OR Gates 14-TSSOP -40 to 85 |
| 74VHC138M | 3-to-8 Decoder/Demultiplexer |
| 74VHC138N | 3-to-8 Decoder/Demultiplexer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74VHC123A_07 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Dual Retriggerable Monostable Multivibrator |
| 74VHC123AFT | 功能描述:Monostable Multivibrator 9.6ns 16-TSSOP 制造商:toshiba semiconductor and storage 系列:汽车级，AEC-Q100，74VHC 包装:剪切带（CT） 零件状态:停产 逻辑类型:单稳态 独立电路:2 施密特触发器输入:无 传播延迟:9.6ns 电流 - 输出高，低:8mA，8mA 电压 - 电源:2 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:16-TSSOP 标准包装:1 |
| 74VHC123AM | 功能描述:单稳态多谐振荡器 Dual Multivibrator 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 |
| 74VHC123AM | 制造商:Fairchild Semiconductor Corporation 功能描述:74VHC CMOS SMD 74VHC123 SOIC16 |
| 74VHC123AM_Q | 功能描述:单稳态多谐振荡器 Dual Multivibrator 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 |
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