MC54F163AN View Datasheet(PDF) - Motorola => Freescale
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Description
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MC54F163AN Datasheet PDF : 4 Pages
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SYNCHRONOUS PRESETTABLE
BINARY COUNTER
The MC74F161A and MC74F163A are high-speed synchronous modu-
lo-16 binary counters. They are synchronously presettable for application in
programmable dividers and have two types of Count Enable inputs plus a Ter-
minal Count output for versatility in forming synchronous multistage counters.
The MC74F161A has an asynchronous Master Reset input that overrides all
other inputs and forces the outputs LOW. The MC74F163A has a Synchro-
nous Reset input that overrides counting and parallel loading and allows the
outputs to be simultaneously reset on the rising edge of the clock.
• Synchronous Counting and Loading
• High-Speed Synchronous Expansion
• Typical Count Frequency of 120 MHz
CONNECTION DIAGRAM
VCC TC Q0 Q1 Q2 Q3 CET PE
16 15 14 13 12 11 10 9
12345678
*R CP P0 P1 P2 P3 CEP GND
*MR for MC74F161A
*SR for MC74F163A
FUNCTION TABLE
SR PE CET CEP ACTION ON THE RISING CLOCK EDGE ( )
L
X
X
X Reset (Clear)
H
L
X
X
Load (Pn Qn)
H
H
H
H Count (Increment)
H
H
L
X No Change (Hold)
H
H
X
L
No Change (Hold)
H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care
STATE DIAGRAM
0123 4
15
5
14
6
13
7
12 11 10 9 8
MC74F161A
MC74F163A
SYNCHRONOUS PRESETTABLE
BINARY COUNTER
FAST™ SHOTTKY TTL
16
1
J SUFFIX
CERAMIC
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
MC74FXXXAJ Ceramic
MC74FXXXAN Plastic
MC74FXXXAD SOIC
LOGIC SYMBOL
93456
7
PE
CEP
P0
P1
P2 P3
10 CET
TC 15
2 CP*R Q0 Q1 Q2 Q3
1 14 13 12 11
VCC = PIN 16
GND = PIN 8
*MR for MC74F161A
*SR for MC74F163A
FAST AND LS TTL DATA
4-75
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