54HC244 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

比赛名单

54HC244

RAD-HARD OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

STMicroelectronics 

M54HC244

IEC LOGIC SYMBOLS

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN N°

1

2, 4, 6, 8

9, 7, 5, 3

11, 13, 15,

17

18, 16, 14,

12

19

10

20

SYMBOL NAME AND FUNCTION

1G

1A1 to 1A4

2Y1 to 2Y4

2A1 to 2A4

Output Enable Input

Data Inputs

Data Outputs

Data Inputs

1Y1 to 1Y4 Data Outputs

2G

GND

VCC

Output Enable Input

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

G

L

L

H

X : Don’t Care

Z : High Impedance

INPUTS

An

L

H

X

OUTPUT

Yn

L

H

Z

2/10

Share Link: