M54HC139K1 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

M54HC139K1

RAD-HARD DUAL 2 TO 4 DECODER/DEMULTIPLEXER

STMicroelectronics 

M54HC139

IEC LOGIC SYMBOLS

INPUT AND OUTPUT EQUIVALENT CIRCUIT

LOGIC DIAGRAM

PIN DESCRIPTION

PIN N°

SYMBOL NAME AND FUNCTION

1, 15

2, 3

4, 5, 6, 7

12, 11, 10, 9

14, 13

8

16

1G, 2G

1A, 1B

1Y0 TO 1Y3

2Y0 TO 2Y3

2A, 2B

GND

VCC

Enable Inputs

Address Inputs

Outputs

Outputs

Address Inputs

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

INPUTS

ENABLE SELECT

G

BA

OUTPUTS

Y0 Y1 Y2 Y3

SELECTED

OUTPUT

H

X X H H H H NONE

L

L L L HHH

Y0

L

L HH L HH

Y1

L

H L HH L H

Y2

L

HHHHH L

Y3

This logic diagram has not be used to estimate propagation delays

2/8

Share Link: