74AHC373 Datasheet, PDF (3/20 Pages) NXP Semiconductors – Octal D-type transparent latch; 3-state

Philips Semiconductors
Octal D-type transparent latch; 3-state
Product specification
74AHC373; 74AHCT373
FUNCTION TABLE
See note 1.
OPERATING MODES
OE
Enable and read register
L
(transparent mode)
L
Latch and read register
L
L
Latch register and
H
disable outputs
H
INPUTS
LE
H
H
L
L
X
X
INTERNAL
D_n
LATCHES
L
L
H
H
I
L
h
H
X
X
X
X
Note
1. H = HIGH voltage level;
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;
X = don’t care;
Z = high-impedance OFF-state.
OUTPUTS
Q₀ to Q₇
L
H
L
H
Z
Z
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
74AHC373D
74AHC373PW
74AHCT373D
74AHCT373PW
NORTH AMERICA
74AHC373D
74AHC373PW DH
74AHCT373D
7AHCT373PW DH
PINS
20
20
20
20
PACKAGES
PACKAGE MATERIAL
SO
TSSOP
SO
TSSOP
plastic
plastic
plastic
plastic
CODE
SOT163-1
SOT360-1
SOT163-1
SOT360-1
PINNING
PIN
1
2, 5, 6, 9, 12, 15, 16
and 19
3, 4, 7, 8, 13, 14, 17
and 18
10
11
20
SYMBOL
OE
Q₀ to Q₇
D₀ to D₇
GND
LE
V_CC
DESCRIPTION
output enable input (active LOW)
latch outputs
data inputs
ground (0 V)
latch enable input (active HIGH)
DC supply voltage
1999 Nov 23
3