MC74AC160N View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC74AC160N Datasheet PDF : 14 Pages
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Synchronous Presettable
BCD Decade Counter
The MC74AC160/74ACT160 and MC74AC162/74ACT162 are high-speed
synchronous decade counters operating in the BCD (8421) sequence. They
are synchronously presettable for application in programmable dividers and have
two types of Count Enable inputs plus a Terminal Count output for versatility in
forming synchronous multistage counters. The MC74AC160/74ACT160 has an
asynchronous Master Reset input that overrides all other inputs and forces the
outputs LOW. The MC74AC162/74ACT162 has a Synchronous Reset input that
overrides counting and parallel loading and allows all outputs to be simultaneously
reset on the rising edge of the clock.
• Synchronous Counting and Loading
• High-Speed Synchronous Expansion
• Typical Count Rate of 120 MHz
• Outputs Source/Sink 24 mA
• ′ACT160 and ′ACT162 Have TTL Compatible Inputs
VCC TC Q0
16 15 14
Q1 Q2
13 12
Q3 CET PE
11 10 9
MC74AC160
MC74ACT160
MC74AC162
MC74ACT162
SYNCHRONOUS
PRESETTABLE
BCD DECADE COUNTER
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
12345678
*R CP P0 P1 P2 P3 CEP GND
PIN NAMES
CEP
CET
CP
MR
SR
P0–P3
PE
Q0–Q3
TC
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
(′160) Asynchronous Master Reset Input
(′162) Synchronous Reset Input
Parallel Data Inputs
Parallel Enable Input
Flip-Flop Outputs
Terminal Count Output
LOGIC SYMBOL
PE P0 P1 P2 P3
CEP
CET
TC
CP
*R Q0 Q1 Q2 Q3
*MR for ′160
*SR for ′162
FACT DATA
5-1
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