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MC74HCT244A

更新时间： 2024-09-10 05:09:55
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 驱动器
页数 文件大小 规格书
7页 115K
描述
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs

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MC74HCT244A 数据手册

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SEMICONDUCTOR TECHNICAL DATA  
J SUFFIX  
CERAMIC PACKAGE  
CASE 732–03  
20  
20  
1
High–Performance Silicon–Gate CMOS  
N SUFFIX  
PLASTIC PACKAGE  
CASE 738–03  
The MC54/74HCT244A is identical in pinout to the LS244. This device  
may be used as a level converter for interfacing TTL or NMOS outputs to  
High–Speed CMOS inputs. The HCT244A is an octal noninverting buffer  
line driver line receiver designed to be used with 3–state memory address  
drivers, clock drivers, and other bus–oriented systems. The device has  
non–inverted outputs and two active–low output enables.  
The HCT244A is the noninverting version of the HCT240. See also  
HCT241.  
1
DW SUFFIX  
SOIC PACKAGE  
CASE 751D–04  
20  
20  
20  
1
SD SUFFIX  
SSOP PACKAGE  
CASE 940C–03  
1
•
•
•
•
•
•
Output Drive Capability: 15 LSTTL Loads  
TTL NMOS–Compatible Input Levels  
Outputs Directly Interface to CMOS, NMOS, and TTL  
Operating Voltage Range: 4.5 to 5.5 V  
Low Input Current: 1 µA  
DT SUFFIX  
TSSOP PACKAGE  
CASE 948E–02  
1
ORDERING INFORMATION  
MC54HCTXXXAJ  
MC74HCTXXXAN  
MC74HCTXXXADW  
MC74HCTXXXASD  
MC74HCTXXXADT  
Ceramic  
Plastic  
SOIC  
SSOP  
TSSOP  
In Compliance with the Requirements Defined by JEDEC Standard  
No. 7A  
•
Chip Complexity: 112 FETs or 28 Equivalent Gates  
LOGIC DIAGRAM  
PIN ASSIGNMENT  
2
4
6
8
18  
16  
14  
12  
A1  
YA1  
ENABLE A  
1
20  
V
CC  
A1  
YB4  
A2  
2
3
4
19  
18  
17  
ENABLE B  
YA1  
A2  
A3  
A4  
YA2  
YA3  
YA4  
B4  
YB3  
A3  
5
16  
15  
14  
13  
12  
11  
YA2  
B3  
6
NONINVERTING  
OUTPUTS  
DATA INPUTS  
YB2  
A4  
7
YA3  
B2  
11  
13  
9
7
B1  
B2  
B3  
B4  
YB1  
YB2  
YB3  
YB4  
8
YB1  
GND  
9
YA4  
B1  
10  
15  
17  
5
3
FUNCTION TABLE  
Inputs  
Enable A,  
Enable B A, B  
Outputs  
PIN 20 = V  
CC  
PIN 10 = GND  
1
YA, YB  
ENABLE A  
ENABLE B  
OUTPUT  
ENABLES  
19  
L
L
L
H
X
L
H
Z
H
Z = high impedance  
X = don’t care  
2/97  
Motorola, Inc. 1997  
REV 7  
1234567

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