Datasheet
SN54ABT8543, SN74ABT8543
SCAN TEST DEVICES WITH
OCTAL REGISTERED BUS TRANSCEIVERS
SCBS120E – AUGUST 1991 – REVISED JULY 1996
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
SN54ABT8543
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
AorB
BorA
2 3.7 4.7 2 5.5
ns
t
PHL
A
or
B
B
or
A
1.5 3.5 4.4 1.5 5.8
ns
t
PLH
LEAB or LEBA
BorA
2 4.7 5.6 2 8.1
ns
t
PHL
LEAB
or
LEBA
B
or
A
1.5 4.1 5 1.5 7.3
ns
t
PZH
CEAB or CEBA
BorA
2 4.2 5.2 2 7.5
ns
t
PZL
CEAB
or
CEBA
B
or
A
2 4.7 6.1 2 8.4
ns
t
PZH
OEAB or OEBA
BorA
2 4.4 5.4 2 6.7
ns
t
PZL
OEAB
or
OEBA
B
or
A
2 5.2 7.4 2 7.6
ns
t
PHZ
CEAB or CEBA
BorA
2.5 5.8 6.8 2.5 9.1
ns
t
PLZ
CEAB
or
CEBA
B
or
A
2.5 5.3 6.3 2.5 8.7
ns
t
PHZ
OEAB or OEBA
BorA
2 5.9 6.9 2 8.3
ns
t
PLZ
OEAB
or
OEBA
B
or
A
2 5.2 6.2 2 7.8
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (normal mode) (see Figure 13)
SN74ABT8543
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
AorB
BorA
2 3.7 4.5 2 5.2
ns
t
PHL
A
or
B
B
or
A
1.5 3.5 4.4 1.5 5.5
ns
t
PLH
LEAB or LEBA
BorA
2 4.7 5.6 2 7.8
ns
t
PHL
LEAB
or
LEBA
B
or
A
1.5 4.1 5 1.5 6.9
ns
t
PZH
CEAB or CEBA
BorA
2 4.2 5.2 2 7.2
ns
t
PZL
CEAB
or
CEBA
B
or
A
2 4.7 5.7 2 8.3
ns
t
PZH
OEAB or OEBA
BorA
2 4.4 5.4 2 6.5
ns
t
PZL
OEAB
or
OEBA
B
or
A
2 5.2 6.2 2 7.5
ns
t
PHZ
CEAB or CEBA
BorA
2.5 5.8 6.8 2.5 8.8
ns
t
PLZ
CEAB
or
CEBA
B
or
A
2.5 5.3 6.3 2.5 8
ns
t
PHZ
OEAB or OEBA
BorA
2 5.9 6.9 2 7.9
ns
t
PLZ
OEAB
or
OEBA
B
or
A
2 5.2 6.2 2 7.4
ns