SN74LS240 Datasheet, PDF (2/8 Pages) ON Semiconductor – LOW POWER SCHOTTKY

SN74LS240 SN74LS244
LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)
SN74LS240
V_CC 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
V_CC 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