74hc7540 NXP Semiconductors, 74hc7540 Datasheet - Page 3

• Manufacturer Part Number: 74hc7540
• Description: Octal Schmitt Trigger Buffer/line Driver; 3-state; Inverting
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN DESCRIPTION
December 1990
PIN NO.
1, 19
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11
20
Octal Schmitt trigger buffer/line driver;
3-state; inverting
Fig.1 Pin configuration.
SYMBOL
OE
A
GND
Y
V
0
0
CC
to A
to Y
1
, OE
7
7
2
Fig.2 Logic symbol.
NAME AND FUNCTION
output enable inputs (active LOW)
data inputs
ground (0 V)
bus outputs
positive supply voltage
3
Fig.3 IEC logic symbol.
74HC/HCT7540
Product specification