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MM54HC123A Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # MM54HC123A
Description  Dual Retriggerable Monostable Multivibrator
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

MM54HC123A Datasheet(HTML) 3 Page - National Semiconductor (TI)

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AC Electrical Characteristics VCCe5V TAe25 C CLe15 pF tretfe6ns
Symbol
Parameter
Conditions
Typ
Limit
Units
tPLH
Maximum Trigger Propagation Delay
ns
A B or Clear to Q
tPHL
Maximum Trigger Propagation Delay
ns
A B or Clear to Q
tPHL
Maximum Propagation Delay Clear to Q
ns
tPLH
Maximum Propagation Delay Clear to Q
ns
tW
Minimum Pulse Width A B or Clear
ns
tREM
Minimum Clear Removal Time
ns
tWQMIN
Minimum Output Pulse Width
CEXTe
pF
ns
REXTe kX
tWQ
Output Pulse Width
CEXTe
pF
m
s
REXTe
kX
AC Electrical Characteristics CLe50 pF tretfe6 ns (unless otherwise specified)
TAe25 C
74HC
54HC
Symbol
Parameter
Conditions
VCC
TAeb40 to 85 CTAeb55 to 125 C Units
Typ
Guaranteed Limits
tPLH
Maximum Trigger Propagation
V
ns
Delay A B or Clear to Q
V
ns
V
ns
tPHL
Maximum Trigger Propagation
V
ns
Delay A B or Clear to Q
V
ns
V
ns
tPHL
Maximum Propagation Delay
V
ns
Clear to Q
V
ns
V
ns
tPLH
Maximum Propagation Delay
V
ns
Clear to Q
V
ns
V
ns
tW
Minimum Pulse Width
V
ns
A B Clear
V
ns
V
ns
tREM
Minimum Clear
V
ns
Removal Time
V
ns
V
ns
tTLH tTHL Maximum Output
V
ns
Rise and Fall Time
V
ns
V
ns
tWQMIN
Minimum Output
CEXTe
pF
V
m
s
Pulse Width
REXTe kX
V
ns
REXTe kX VCCe V
V
ns
tWQ
Output Pulse Width
CEXTe
m
F
Min
V
ms
REXTe
kX
Max
V
ms
CIN
Maximum Input
pF
Capacitance Pins
CIN
Maximum Input
pF
Capacitance other inputs
CPD
Power Dissipation
Note
pF
Capacitance
Note 5
CPD determines the no load dynamic power consumption PD e CPD VCC2 f a ICC VCC and the no load dynamic current consumption IS e CPD
VCC f a ICC
3


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