74F163A PHILIPS [NXP Semiconductors], 74F163A Datasheet - Page 5
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74F163A
Manufacturer Part Number
74F163A
Description
4-bit binary counter
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.74F163A.pdf
(14 pages)
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Philips Semiconductors
74F163A MODE SELECT – FUNCTION TABLE
H
h
L
l
q
X
(1) =
(2) =
74F161A LOGIC DIAGRAM
1996 Jan 29
n
4-bit binary counters
V
GND = Pin 8
CC
SR
h
h
h
h
h
=
=
=
=
=
=
=
l
= Pin 16
CET
CEP
MR
D1
CP
PE
D0
D2
D3
High voltage level
High voltage level one setup prior to the Low-to-High clock transition
Low voltage level
Low voltage level one setup prior to the Low-to-High clock transition
Lower case letters indicate the state of the referenced output prior to the Low-to-High clock transition
Don’t care
Low-to-High clock transition
The TC output is High when CET is High and the counter is at Terminal Count (HHHH for 74F161A)
The TC output is High when CET is High and the counter is at Terminal Count (HHHH for 74F163A)
2
1
9
10
7
3
4
5
6
CP
X
X
CEP
X
X
X
X
h
l
INPUTS
CET
X
X
X
X
h
l
PE
X
h
h
h
l
l
Dn
X
X
X
X
h
l
5
count
Qn
q
q
H
L
L
n
n
OUTPUTS
TC
(2)
(2)
(2)
L
L
L
OPERATING MODE
OPERATING MODE
Reset (clear)
Parallel load
Parallel load
Count
Hold (do nothing)
Hold (do nothing)
D
CP
D
CP
D
CP
D
CP
R
R
R
R
Q
Q
Q
Q
Q
Q
Q
Q
74F161A, 74F163A
Product specification
SF00662
14
13
12
11
15
Q0
Q1
Q2
Q3
TC