Philips Semiconductors
Product specification
Octal D-type transparent latch; 3-state
74HC/HCT573
PIN DESCRIPTION
PIN NO.
SYMBOL
D0 to D7
LE
NAME AND FUNCTION
2, 3, 4, 5, 6, 7, 8, 9
data inputs
11
latch enable input (active HIGH)
1
OE
3-state output enable input (active LOW)
ground (0 V)
10
GND
19, 18, 17, 16, 15, 14, 13, 12
20
Q0 to Q7
VCC
3-state latch outputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3