74ACT16244(2000) 데이터 시트보기 (PDF) - STMicroelectronics

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74ACT16244
(Rev.:2000)

16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)

STMicroelectronics 

74ACT16244

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCT ION

1

1G

Output Enable Input

2, 3, 5, 6 1Y1 to 1Y4 Data Outputs

8, 9, 11, 12 2Y1 to 2Y4 Data Outputs

13, 14, 16, 17 3Y1 to 3Y4 Data Outputs

19, 20, 22, 23 4Y1 to 4Y4 Data Outputs

24

4G

Output Enable Input

25

3G

Output Enable Input

30, 29, 27, 26 4A1 to 4A4 Data Inputs

36, 35, 33, 32 3A1 to 3A4 Data Inputs

41, 40, 38, 37 2A1 to 2A4 Data Inputs

47, 46, 44, 43 1A1 to 1A4 Data Inputs

48

2G

Output Enable Input

4,10, 15, 21,

28, 34, 39, 45

GND

Ground (0V)

7, 18, 31, 42

VCC

Positive Supply Voltage

IEC LOGIC SYMBOLS

TRUTH TABLE

INPUT

G

An

L

L

L

H

H

X

X:”H” or ”L”

Z: High impedance

OUTPUT

Yn

L

H

Z

2/8

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