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TC74ACT161F Просмотр технического описания (PDF) - Toshiba
Номер в каталоге
Компоненты Описание
производитель
TC74ACT161F
Synchronous Presettable 4-Bit Binary Counter
Toshiba
TC74ACT161F Datasheet PDF : 12 Pages
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Pin Assignment
TC74ACT161,163P/F
IEC Logic Symbol
TC74ACT161
TC74ACT163
Truth Table
Inputs
Outputs
CLR CLR
(161) (163)
LOAD
ENP
ENT
CK
(161)
CK
(163)
QA
QB
QC
QD
Function
L
L
X
X
X
X
L
L
L
L Reset to “0”
H
H
L
X
X
A
B
C
D Preset Data
H
H
H
X
L
No Change
No Count
H
H
H
L
X
No Change
No Count
H
H
H
H
H
Count Up
Count
H
X
X
X
X
No Change
No Count
X: Don’t care
A, B, C, D: Logic level of data inputs
Carry: Carry
=
ENT
・
QA
・
QB
・
QC
・
QD
2
2012-02-29
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