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74VHC123AM PDF预览

74VHC123AM

更新时间: 2024-11-03 22:56:23
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 振荡器
页数 文件大小 规格书
9页 110K
描述
Dual Retriggerable Monostable Multivibrator

74VHC123AM 数据手册

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July 1993  
Revised April 1999  
74VHC123A  
Dual Retriggerable Monostable Multivibrator  
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.  
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 = (Rx)(Cx); where PW is in seconds, R is in ohms, and  
Features  
High Speed:  
t
PD = 8.1 ns (typ) at TA = 25°C  
Low Power Dissipation:  
CC = 4 µA (Max) at TA = 25°C  
I
C is in farads.  
Active State: ICC = 600 µA (Max) at TA = 25°C  
Limits for Rx and Cx are:  
High Noise Immunity: VNIH = VNIL = 28% VCC (min)  
External capacitor, Cx No limit  
Power down protection is provided on all inputs  
Pin and function compatible with 74HC123A  
External resistors, Rx  
CC > 3.0V, 1 kmin  
VCC = 2.0V, 5 kmin  
V
Ordering Code:  
Order Number Package Number  
Package Description  
74VHC123AM  
74VHC123ASJ  
74VHC123AMTC  
74VHC123AN  
M16A  
M16D  
MTC16  
N16E  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow  
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide  
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Symbol  
Connection Diagram  
IEEE/IEC  
© 1999 Fairchild Semiconductor Corporation  
DS011621.prf  
www.fairchildsemi.com  

74VHC123AM 替代型号

型号 品牌 替代类型 描述 数据表
SN74AHC123ADR TI

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DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
CD74HC123E TI

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High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets

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74VHC123AM_NL FAIRCHILD

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Monostable Multivibrator, 4000/14000/40000 Series, 2-Func, CMOS, PDSO16, 0.150 INCH, LEAD
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Monostable Multivibrator, AHC/VHC Series, 2-Func, CMOS, PDSO16, 0.150 INCH, NARROW, SOIC-1
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Dual Retriggerable Monostable Multivibrator
74VHC123AMTC ONSEMI

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双可重触发 Monastable 多谐振荡器
74VHC123AMTC_NL FAIRCHILD

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Monostable Multivibrator, AHC/VHC Series, 2-Func, CMOS, PDSO16, 4.40 MM, MO-153, TSSOP-16
74VHC123AMTCX FAIRCHILD

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Monostable Multivibrator
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双可重触发 Monastable 多谐振荡器
74VHC123AMTCX_NL FAIRCHILD

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Monostable Multivibrator, AHC/VHC Series, 2-Func, CMOS, PDSO16, 4.40 MM, MO-153, TSSOP-16
74VHC123AMTCX-F40 FAIRCHILD

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Monostable Multivibrator, CMOS, PDSO16
74VHC123AMX FAIRCHILD

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Monostable Multivibrator