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MC74HC244A PDF预览

MC74HC244A

更新时间: 2024-10-27 23:01:35
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 驱动器
页数 文件大小 规格书
8页 189K
描述
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver

MC74HC244A 数据手册

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SEMICONDUCTOR TECHNICAL DATA  
J SUFFIX  
CERAMIC PACKAGE  
CASE 732–03  
20  
20  
High–Performance Silicon–Gate CMOS  
1
The MC54/74HC244A is identical in pinout to the LS244. The device  
inputs are compatible with standard CMOS outputs; with pullup resistors,  
they are compatible with LSTTL outputs.  
This octal noninverting buffer/line driver/line receiver is designed to be  
used with 3–state memory address drivers, clock drivers, and other  
bus–oriented systems. The device has noninverting outputs and two  
active–low output enables.  
N SUFFIX  
PLASTIC PACKAGE  
CASE 738–03  
1
DW SUFFIX  
SOIC PACKAGE  
CASE 751D–04  
20  
20  
20  
1
The HC244A is similar in function to the HC240A and HC241A.  
SD SUFFIX  
SSOP PACKAGE  
CASE 940C–03  
Output Drive Capability: 15 LSTTL Loads  
Outputs Directly Interface to CMOS, NMOS, and TTL  
Operating Voltage Range: 2 to 6 V  
1
DT SUFFIX  
TSSOP PACKAGE  
CASE 948E–02  
Low Input Current: 1 µA  
High Noise Immunity Characteristic of CMOS Devices  
In Compliance with the Requirements Defined by JEDEC Standard  
No. 7A  
1
ORDERING INFORMATION  
MC54HCXXXAJ  
MC74HCXXXAN  
MC74HCXXXADW  
MC74HCXXXASD  
MC74HCXXXADT  
Ceramic  
Plastic  
SOIC  
SSOP  
TSSOP  
Chip Complexity: 136 FETs or 34 Equivalent Gates  
LOGIC DIAGRAM  
2
18  
PIN ASSIGNMENT  
A1  
YA1  
ENABLE A  
1
20  
V
CC  
4
6
8
16  
14  
12  
A2  
A3  
A4  
YA2  
YA3  
YA4  
A1  
YB4  
A2  
2
3
4
19  
18  
17  
ENABLE B  
YA1  
B4  
YB3  
A3  
5
16  
15  
14  
13  
12  
11  
YA2  
B3  
DATA  
INPUTS  
NONINVERTING  
OUTPUTS  
6
11  
13  
9
7
B1  
B2  
B3  
B4  
YB1  
YB2  
YB3  
YB4  
YB2  
A4  
7
YA3  
B2  
8
YB1  
GND  
9
YA4  
B1  
15  
17  
5
3
10  
FUNCTION TABLE  
PIN 20 = V  
Inputs  
Enable A,  
Enable B A, B  
Outputs  
CC  
PIN 10 = GND  
1
ENABLE A  
ENABLE B  
OUTPUT  
ENABLES  
19  
YA, YB  
L
L
H
L
H
X
L
H
Z
Z = high impedance  
2/97  
Motorola, Inc. 1997  
REV 7  

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