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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 1/4頁 |
| 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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