參數(shù)資料
型號(hào)： MC74F162A
廠商： Motorola, Inc.
元件分類： 通用總線功能
英文描述： SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
中文描述： 同步可預(yù)置BCD碼十進(jìn)制計(jì)數(shù)器
文件頁(yè)數(shù)： 1/4頁(yè)
文件大小： 86K
代理商： MC74F162A
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(guān)PDF資料
PDF描述
MC74F162AD SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162AJ SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F162AN SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
MC74F160AJ Processor Supervisory Circuits 5-SOT-23 -40 to 85
MC74F160AN Processor Supervisory Circuits 5-SOT-23 -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC74F162A WAF 制造商:ON Semiconductor 功能描述:
MC74F163A WAF 制造商:ON Semiconductor 功能描述:
MC74F163AD 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC74F163AML1 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC74F163AN 制造商:Rochester Electronics LLC 功能描述:- Bulk
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