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74HC240 Datasheet, PDF (3/7 Pages) NXP Semiconductors – Octal buffer/line driver; 3-state; inverting
Philips Semiconductors
Octal buffer/line driver; 3-state; inverting
Product specification
74HC/HCT240
PIN DESCRIPTION
PIN NO.
1
2, 4, 6, 8
3, 5, 7, 9
10
17, 15, 13, 11
18, 16, 14, 12
19
20
SYMBOL
1OE
1A0 to 1A3
2Y0 to 2Y3
GND
2A0 to 2A3
1Y0 to 1Y3
2OE
VCC
NAME AND FUNCTION
output enable input (active LOW)
data inputs
bus outputs
ground (0 V)
data inputs
bus outputs
output enable input (active LOW)
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3