Datasheet
SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN54ABT543A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
AorB
BorA
1.6
†
4.4 4.4 1.6
†
5.5
ns
t
PHL
A
or
B
B
or
A
1.6 4.4 5.1 1.6 6.2
ns
t
PLH
LEBA or LEAB
AorB
1.6
†
4.1 5.1 1.6
†
6.6
ns
t
PHL
LEBA
or
LEAB
A
or
B
1.6 4.6 5.4 1.6 6.4
ns
t
PZH
OEBA or OEAB
AorB
1.4 3.9 4.1 1.4 5.1
ns
t
PZL
OEBA
or
OEAB
A
or
B
2 5 4.9 2 5.8
ns
t
PHZ
OEBA or OEAB
AorB
2.5
†
5.9 5.8 2.5
†
6.9
ns
t
PLZ
OEBA
or
OEAB
A
or
B
2.5
†
5.5 6.1 2.5
†
7.6
ns
t
PZH
CEBA or CEAB
AorB
1.4 3.9 4.7 1.4 5.6
ns
t
PZL
CEBA
or
CEAB
A
or
B
2 5 5.7 2 6.2
ns
t
PHZ
CEBA or CEAB
AorB
3.2†
5.9 6.5
3.2†
7.3
ns
t
PLZ
CEBA
or
CEAB
A
or
B
2.5
†
5.5 6.7 2.5
†
7.8
ns
†
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN74ABT543A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
AorB
BorA
1.8
†
4.4 5.9 1.8
†
6.9
ns
t
PHL
A
or
B
B
or
A
1.9 4.4 5.9 1.9 6.9
ns
t
PLH
LEBA or LEAB
AorB
1.5
†
4.1 5.6 1.5
†
6.6
ns
t
PHL
LEBA
or
LEAB
A
or
B
2.1 4.6 6.1 2.1 7.1
ns
t
PZH
OEBA or OEAB
AorB
1.4 3.9 5.4 1.4 6.4
ns
t
PZL
OEBA
or
OEAB
A
or
B
2.5 5 6.5 2.5 7.5
ns
t
PHZ
OEBA or OEAB
AorB
2.5
†
5.9 7.4 2.5
†
8.4
ns
t
PLZ
OEBA
or
OEAB
A
or
B
2.5
†
5.5 7 2.5
†
8
ns
t
PZH
CEBA or CEAB
AorB
1.4 3.9 5.4 1.4 6.4
ns
t
PZL
CEBA
or
CEAB
A
or
B
2.5 5 6.5 2.5 7.5
ns
t
PHZ
CEBA or CEAB
AorB
2.9†
5.9 7.4
2.9†
8.4
ns
t
PLZ
CEBA
or
CEAB
A
or
B
2.4
†
5.5 7 2.4
†
8
ns
†
This data sheet limit may vary among suppliers.