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TTMM54HC123AE/883

Description
Monostable Multivibrator, CMOS, CQCC20
Categorylogic    logic   
File Size188KB,6 Pages
ManufacturerTwilight Technology Inc.
Download Datasheet Parametric Compare View All

TTMM54HC123AE/883 Overview

Monostable Multivibrator, CMOS, CQCC20

TTMM54HC123AE/883 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerTwilight Technology Inc.
package instructionQCCN, LCC20,.35SQ
Reach Compliance Codeunknown
JESD-30 codeS-XQCC-N20
Logic integrated circuit typeMONOSTABLE MULTIVIBRATOR
Number of terminals20
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Package body materialCERAMIC
encapsulated codeQCCN
Encapsulate equivalent codeLCC20,.35SQ
Package shapeSQUARE
Package formCHIP CARRIER
power supply2/6 V
Certification statusNot Qualified
Filter level38535Q/M;38534H;883B
surface mountYES
technologyCMOS
Temperature levelMILITARY
Terminal formNO LEAD
Terminal pitch1.27 mm
Terminal locationQUAD
Base Number Matches1
MM54HC123A MM74HC123A Dual Retriggerable Monostable Multivibrator
January 1988
MM54HC123A MM74HC123A
Dual Retriggerable Monostable Multivibrator
General Description
The MM54 74HC123A high speed monostable multivibra-
tors (one shots) utilize advanced silicon-gate CMOS tech-
nology They feature speeds comparable to low power
Schottky 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 ’HC123 can be
triggered on the positive transition of the clear while A is
held low and B is held high
The ’HC123A is retriggerable That is it may be triggered
repeatedly while their outputs are generating a pulse and
the pulse will be extended
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
e
(R
EXT
) (C
EXT
) 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
V
CC
and ground
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Typical propagation delay 25 ns
Wide power supply range 2V – 6V
Low quiescent current 80
mA
maximum (74HC Series)
Low input current 1
mA
maximum
Fanout of 10 LS-TTL loads
Simple pulse width formula T
e
RC
Wide pulse range 400 ns to
%
(typ)
Part to part variation
g
5% (typ)
Schmitt Trigger A B inputs enable infinite signal input
rise and fall times
Connection Diagram
Dual-In-Line Package
Timing Component
Note
Pin 6 and Pin 14 must be
hard-wired to GND
TL F 5206 – 2
TL F 5206 – 1
Top View
Order Number MM54HC123A or MM74HC123A
Truth Table
Inputs
Clear
L
X
X
H
H
A
X
H
X
L
B
X
X
L
Q
L
L
L
Outputs
Q
H
H
H
H
e
High Level
L
e
Low Level
u
e
v
e
Transition from Low to High
Transition from High to Low
e
One High Level Pulse
e
One Low Level Pulse
u
H
H
X
e
Irrelevant
v
L
u
C
1995 National Semiconductor Corporation
TL F 5206
RRD-B30M105 Printed in U S A

TTMM54HC123AE/883 Related Products

TTMM54HC123AE/883 TTMM54HC123AJ/883
Description Monostable Multivibrator, CMOS, CQCC20 Monostable Multivibrator, CMOS, CDIP16
Is it Rohs certified? incompatible incompatible
Maker Twilight Technology Inc. Twilight Technology Inc.
Reach Compliance Code unknown unknown
JESD-30 code S-XQCC-N20 R-XDIP-T16
Logic integrated circuit type MONOSTABLE MULTIVIBRATOR MONOSTABLE MULTIVIBRATOR
Number of terminals 20 16
Maximum operating temperature 125 °C 125 °C
Minimum operating temperature -55 °C -55 °C
Package body material CERAMIC CERAMIC
encapsulated code QCCN DIP
Encapsulate equivalent code LCC20,.35SQ DIP16,.3
Package shape SQUARE RECTANGULAR
Package form CHIP CARRIER IN-LINE
power supply 2/6 V 2/6 V
Certification status Not Qualified Not Qualified
Filter level 38535Q/M;38534H;883B 38535Q/M;38534H;883B
surface mount YES NO
technology CMOS CMOS
Temperature level MILITARY MILITARY
Terminal form NO LEAD THROUGH-HOLE
Terminal pitch 1.27 mm 2.54 mm
Terminal location QUAD DUAL
Base Number Matches 1 1
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