參數(shù)資料
型號: MC74F160AD
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: Processor Supervisory Circuits 5-SOT-23 -40 to 85
中文描述: F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PDSO16
封裝: PLASTIC, SOIC-16
文件頁數(shù): 1/4頁
文件大小: 86K
代理商: MC74F160AD
4-71
FAST AND LS TTL DATA
SYNCHRONOUS PRESETTABLE
BCD DECADE COUNTER
The MC74F160A and MC74F162A are high-speed synchronous decade
counters operating in the BCD (8421) sequence. They are synchronously pre-
settable for application in programmable dividers and have two types of Count
Enable inputs plus a Terminal Count output for versatility in forming synchro-
nous multistage counters. The MC74F160A has an asynchronous Master Re-
set input that overrides all other inputs and forces the outputs LOW. The
MC74F162A has a Synchronous Reset input that overrides counting and par-
allel 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 Rate of 120 MHz
CONNECTION DIAGRAM
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
TC
Q0
Q1
Q2
Q3
CET
PE
*R
CP
P0
P1
P2
P3
CEP
GND
*MR for MC74F160A
*SR for MC74F162A
FUNCTION TABLE
SR
PE
CET
CEP
ACTION ON THE RISING CLOCK EDGE ( )
L
X
X
X
Reset (Clear)
H
L
X
X
Load (Pn
o
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
15
12
STATE DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
13
14
0
MC74F160A
MC74F162A
ORDERING INFORMATION
MC74FXXXAJ
MC74FXXXAN
MC74FXXXAD
Ceramic
Plastic
SOIC
LOGIC SYMBOL
PE
P0
P1
P3
P2
CEP
CET
CP*R
Q0
Q1
Q2
Q3
TC
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
16
1
D SUFFIX
SOIC
CASE 751B-03
SYNCHRONOUS PRESETTABLE
BCD DECADE COUNTER
FAST
SHOTTKY TTL
VCC = PIN 16
GND = PIN 8
1
15
7
14
13
12
11
9
3
4
5
6
10
2
*MR for MC74F160A
*SR for MC74F162A
相關PDF資料
PDF描述
MC74F160A SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162A SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162AD SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162AJ SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162AN SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
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