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MC74HC244A

更新时间： 2024-10-27 23:01:35
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器
页数 文件大小 规格书
8页 183K
描述
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver

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MC74HC244A 数据手册

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High–Performance Silicon–Gate CMOS  
The MC74HC244A 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.  
http://onsemi.com  
MARKING  
DIAGRAMS  
20  
PDIP–20  
N SUFFIX  
CASE 738  
MC74HC244AN  
AWLYYWW  
The HC244A is similar in function to the HC240A.  
20  
1
1
• Output Drive Capability: 15 LSTTL Loads  
• Outputs Directly Interface to CMOS, NMOS, and TTL  
• Operating Voltage Range: 2 to 6 V  
• Low Input Current: 1 µA  
• High Noise Immunity Characteristic of CMOS Devices  
20  
SOIC WIDE–20  
DW SUFFIX  
CASE 751D  
HC244A  
AWLYYWW  
20  
1
1
20  
• In Compliance with the Requirements Defined by JEDEC Standard  
No. 7A  
HC  
244A  
ALYW  
TSSOP–20  
DT SUFFIX  
CASE 948G  
20  
1
• Chip Complexity: 136 FETs or 34 Equivalent Gates  
1
LOGIC DIAGRAM  
A
= Assembly Location  
2
4
6
8
18  
16  
14  
12  
WL = Wafer Lot  
YY = Year  
WW = Work Week  
A1  
A2  
A3  
A4  
YA1  
YA2  
YA3  
YA4  
PIN ASSIGNMENT  
ENABLE A  
A1  
1
2
3
4
5
6
7
8
9
20  
V
CC  
19 ENABLE B  
18 YA1  
17 B4  
DATA  
INPUTS  
NONINVERTING  
OUTPUTS  
YB4  
A2  
11  
13  
15  
17  
9
7
5
3
B1  
B2  
B3  
B4  
YB1  
YB2  
YB3  
YB4  
YB3  
A3  
16 YA2  
15 B3  
YB2  
A4  
14 YA3  
13 B2  
YB1  
12 YA4  
11 B1  
GND 10  
PIN 20 = V  
CC  
PIN 10 = GND  
1
ENABLE A  
ENABLE B  
OUTPUT  
ENABLES  
19  
ORDERING INFORMATION  
FUNCTION TABLE  
Device  
Package  
PDIP–20  
Shipping  
Inputs  
Enable A,  
Enable B A, B  
Outputs  
MC74HC244AN  
1440 / Box  
38 / Rail  
YA, YB  
MC74HC244ADW  
MC74HC244ADWR2  
MC74HC244ADT  
MC74HC244ADTR2  
SOIC–WIDE  
L
L
H
L
H
X
L
H
Z
SOIC–WIDE 1000 / Reel  
TSSOP–20 75 / Rail  
Z = high impedance  
TSSOP–20 2500 / Reel  
Semiconductor Components Industries, LLC, 2000  
1
Publication Order Number:  
March, 2000 – Rev. 8  
MC74HC244A/D  
12345678

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