74F543 View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
74F543 Datasheet PDF : 16 Pages
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Philips Semiconductors
Octal registered transceivers
PIN CONFIGURATION – 74F544
LEBA 1
OEBA 2
A0 3
A1 4
A2 5
A3 6
A4 7
A5 8
A6 9
A7 10
EAB 11
GND 12
24 VCC
23 EBA
22 B0
21 B1
20 B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 LEAB
13 OEAB
SF00240
LOGIC SYMBOL (IEEE/IEC) – 74F544
2
IEN3
23
G1
1
1C5
13
2EN4
11
G2
14
2C6
3
3
6D
4
5
6
7
8
9
10
22
5D
4
21
20
19
18
17
16
15
SF00241
Product specification
74F543, 74F544
LOGIC SYMBOL – 74F544
3 4 5 6 7 8 9 10
A0 A1 A2 A3 A4 A5 A6 A7
11
EAB
23
EBA
14
LEAB
1
LEBA
OEAB
13
OEBA
2
B0 B1 B2 B3 B4 B5 B6 B7
VCC = Pin 24
GND = Pin 12
22 21 20 19 18 17 16 15
SF00242
FUNCTION TABLE for 74F543 and 74F544
INPUTS
OUTPUTS
OEXX EXX LEXX DATA 74F543 74F544
STATUS
H
X
X
X
Z
Z
Disabled
X
H
X
X
Z
L
↑
L
h
Z
L
↑
L
l
Z
L
L
↑
h
H
L
L
↑
l
L
L
L
L
H
H
L
L
L
L
L
Z
Disabled
Z
Disable +
Z
Latch
L
Latch +
H
Display
L
Transparent
H
L
L
H
X
NC
NC Hold
H = High voltage level
L = Low voltage level
h = High state must be present one setup time before the
Low-to-High transition of LEXX or EXX (XX=AB or BA)
l = Low state must be present one setup time before the
Low-to-High transition of LEXX or EXX (XX=AB or BA)
↑ = Low-to-High transition of LEXX or EXX XX = AB or BA
X = Don’t care
NC = No change
Z = High impedance “off” state
1994 Dec 5
4
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