SN74LS240ML1 查看數據表（PDF） - ON Semiconductor

零件编号

产品描述 (功能)

生产厂家

SN74LS240ML1

Octal Buffer/Line Driver with 3-State Outputs

ON Semiconductor 

SN74LS240, SN74LS244

LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)

SN74LS240

VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND

SN74LS244

VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND

SN74LS240

INPUTS

1G, 2G

D

OUTPUT

L

L

H

L

H

L

H

X

(Z)

TRUTH TABLES

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Z = HIGH Impedance

SN74LS244

INPUTS

1G, 2G

D

OUTPUT

L

L

L

L

H

H

H

X

(Z)

http://onsemi.com

2

Share Link: