74ABT544D Philips Semiconductors, 74ABT544D Datasheet - Page 3

• Manufacturer Part Number: 74ABT544D
• Description: Octal latched transceiver with dual enable/ inverting 3-State
• Manufacturer: Philips Semiconductors

Philips Semiconductors Advanced BiCMOS Products
LOGIC DIAGRAM
FUNCTION TABLE
H = High voltage level
h = High voltage level one set-up time prior to the Low-to-High clock transition
L = Low voltage level
l
X = Don’t care
NC= No change
Z = High impedance or “off” state
June 1, 1993
Octal latched transceiver with dual enable,
inverting (3-State)
OEXX
= Low voltage level one set-up time prior to the Low-to-High clock transition
= Low-to-High clock transition
H
X
L
L
L
L
L
L
L
EXX
H
X
L
L
L
L
L
INPUTS
LEXX
H
X
X
L
L
L
L
OEBA
LEBA
EBA
A0
A1
A2
A3
A4
A5
A6
A7
An or Bn
10
23
3
4
5
6
7
8
9
2
1
X
X
H
X
h
h
L
l
l
OUTPUTS
An or Bn
NC
H
H
D
LE
Z
Z
Z
Z
L
L
Q
Disabled
Disabled
Disabled + Latch
Latch + Display
Transparent
Hold
DETAIL A X 7
3
STATUS
Q
DETAIL A
LE
D
22
21
20
19
18
17
16
15
13
11
14
B0
B1
B2
B3
B4
B5
B6
B7
OEAB
EAB
LEAB
74ABT544
Product specification