PI74FCT161TS Ver la hoja de datos (PDF) - Pericom Semiconductor
Número de pieza
componentes Descripción
Lista de partido
PI74FCT161TS Datasheet PDF : 6 Pages
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PI74FCT161T/163T
(25Ω SERIES) PI74FCT2161T/2163T
4-BIT BINARY COUNTERS 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Pin Description
Pin Name
I/O
D3-D0
I
Q3-Q0
O
CP
I
MR
I
CEP
I
CET
I
TC
O
PE
I
Description
Data Inputs
Data Outputs
Clock
Master Reset
Counter Enable
Count and TC Enable
Terminal Count
Parallel Load Enable
Function Table
Inputs
Outputs
Q3-Q0
Function
MR PE CP CEP CET DI
161
163 TC
LXXXX
X
L
L Clear 161
L X ↑XX
X
L
L Clear 163
H L ↑ X X D3-D0 D3-D0 D3-D0 X Load Data
HH ↑HH
X
Q+1 Q+1 X Count
HH ↑ L X
X
Q
Q
X Count Inhibit P
HH ↑X L
X
Q
Q
X Count Inhibit T
HHXXH
X
F
F
H Count = 1111
HHXXH
X
0-E
0-E L Count ≠ 1111
HHXXL
X
X
X
L TC Inhibit
Notes:
1. H = High Voltage Level
L = Low Voltge Level
X = Don’t Care
Z = High Impedance
↑ = Low to High
2
PS2083B 10/08/01
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