74AHC573 Philips Semiconductors, 74AHC573 Datasheet - Page 3

• Manufacturer Part Number: 74AHC573
• Description: Octal D-type transparent latch; 3-state
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTION TABLE
See note 1.
Note
1. H = HIGH voltage level;
ORDERING INFORMATION
PINNING
1999 Sep 27
Enable and read register
(transparent mode)
Latch and read register
Latch register and disable
outputs
74AHC573D
74AHC573PW
74AHCT573D
74AHCT573PW
1
2 to 9
10
11
12 to 19
20
Octal D-type transparent latch; 3-state
OPERATING MODES
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition;
L = LOW voltage level;
I = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition;
Z = high-impedance OFF-state.
OUTSIDE NORTH
AMERICA
PIN
74AHC573D
74AHC573PW DH
74AHCT573D
7AHCT573PW DH
OE
D
GND
LE
Q
V
CC
0
7
to D
to Q
NORTH AMERICA
OE
H
H
7
L
L
L
L
0
SYMBOL
INPUTS
LE
H
H
L
L
L
L
3-state output enable input (active LOW)
data inputs
ground (0 V)
latch enable input (active HIGH)
3-state latch outputs
DC supply voltage
3
PINS
20
20
20
20
D
H
L
h
h
I
l
n
PACKAGE
TSSOP
TSSOP
SO
SO
74AHC573; 74AHCT573
DESCRIPTION
PACKAGES
INTERNAL
LATCHES
MATERIAL
H
H
H
L
L
L
plastic
plastic
plastic
plastic
Product specification
OUTPUTS
Q
SOT163-1
SOT360-1
SOT163-1
SOT360-1
0
CODE
to Q
H
H
L
L
Z
Z
7