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MC74VHCT244A

更新时间： 2024-11-04 12:10:23
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器
页数 文件大小 规格书
6页 166K
描述
Octal Bus Buffer/Line Driver with 3-State Outputs

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MC74VHCT244A 数据手册

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SEMICONDUCTOR TECHNICAL DATA  
The MC74VHCT244A is an advanced high speed CMOS octal bus buffer  
fabricated with silicon gate CMOS technology. It achieves high speed  
operation similar to equivalent Bipolar Schottky TTL while maintaining  
CMOS low power dissipation.  
The MC74VHCT244A is a noninverting 3–state buffer, and has two  
active–low output enables. This device is designed to be used with 3–state  
memory address drivers, etc.  
The VHCT inputs are compatible with TTL levels. This device can be used  
as a level converter for interfacing 3.3V to 5.0V, because it has full 5V CMOS  
level output swings.  
DW SUFFIX  
20–LEAD SOIC PACKAGE  
CASE 751D–04  
The VHCT244A input and output (when disabled) structures provide  
protection when voltages between 0V and 5.5V are applied, regardless of  
the supply voltage. These input and output structures help prevent device  
destruction caused by supply voltage – input/output voltage mismatch,  
battery backup, hot insertion, etc.  
DT SUFFIX  
20–LEAD TSSOP PACKAGE  
CASE 948E–02  
•
•
•
•
•
•
•
•
•
•
•
High Speed: t  
= 5.6ns (Typ) at V  
= 5V  
PD  
Low Power Dissipation: I  
CC  
= 4µA (Max) at T = 25°C  
CC  
A
TTL–Compatible Inputs: V = 0.8V; V = 2.0V  
Power Down Protection Provided on Inputs and Outputs  
Balanced Propagation Delays  
Designed for 4.5V to 5.5V Operating Range  
IL IH  
M SUFFIX  
20–LEAD SOIC EIAJ PACKAGE  
CASE 967–01  
Low Noise: V  
= 1.1V (Max)  
OLP  
Pin and Function Compatible with Other Standard Logic Families  
Latchup Performance Exceeds 300mA  
ESD Performance: HBM > 2000V; Machine Model > 200V  
Chip Complexity: 112 FETs or 28 Equivalent Gates  
ORDERING INFORMATION  
MC74VHCTXXXADW  
MC74VHCTXXXADT  
MC74VHCTXXXAM  
SOIC  
TSSOP  
SOIC EIAJ  
LOGIC DIAGRAM  
PIN ASSIGNMENT  
2
4
6
8
18  
16  
14  
12  
A1  
A2  
A3  
A4  
YA1  
YA2  
YA3  
YA4  
OEA  
1
20  
V
CC  
A1  
YB4  
A2  
2
3
4
19  
18  
17  
OEB  
YA1  
B4  
YB3  
A3  
5
16  
15  
14  
13  
12  
11  
YA2  
B3  
DATA  
NONINVERTING  
OUTPUTS  
6
INPUTS  
11  
13  
9
7
YB2  
A4  
7
YA3  
B2  
B1  
B2  
YB1  
YB2  
8
YB1  
GND  
9
YA4  
B1  
10  
15  
17  
5
3
B3  
B4  
YB3  
YB4  
FUNCTION TABLE  
INPUTS  
OUTPUTS  
YA, YB  
OEA, OEB  
A, B  
1
OEA  
OEB  
OUTPUT  
ENABLES  
L
L
H
L
H
X
L
H
Z
19  
6/97  
REV 0  
Motorola, Inc. 1997  
123456

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MC74VHCT244A_11 ONSEMI

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MC74VHCT244A_14 ONSEMI

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 		Octal Bus Buffer/Line Driver with 3-State Outputs
MC74VHCT244ADT ONSEMI

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 		Octal Bus Buffer/Line Driver with 3-State Outputs
MC74VHCT244ADT MOTOROLA

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 		AHCT/VHCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, TSSOP-20
MC74VHCT244ADTEL ONSEMI

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MC74VHCT244ADTG ONSEMI

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 		Octal Bus Buffer/Line Driver, TSSOP 20 LEAD, 75-TUBE
MC74VHCT244ADTR2 MOTOROLA

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 		Bus Driver, AHCT/VHCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, PLASTIC, TSSOP-20
MC74VHCT244ADTR2 ONSEMI

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 		AHCT/VHCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, LEAD FREE, TSSOP-20
MC74VHCT244ADTRG ONSEMI

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 		暂无描述
MC74VHCT244ADW MOTOROLA

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 		Bus Driver, AHCT/VHCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, PLASTIC, SOIC-20

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