Datasheet

SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ABT543A
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN MAX
t
w
Pulse duration, LEAB or LEBA low 3.5 3.5 ns
Data before LEAB or LEBA↑
High 2.5 2.5
t
Setu
p
time
D
a
t
a
b
e
f
ore
LEAB
or
LEBA↑
Low 3 3
ns
t
su
Set
u
p
time
Data before CEAB or CEBA↑
High 2.5 2.5
ns
D
a
t
a
b
e
f
ore
CEAB
or
CEBA↑
Low 3 3
t
h
Hold time
Data after LEAB or LEBA↑ 1 1
ns
t
h
Hold
time
Data after CEAB or CEBA↑ 1 1
ns
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN74ABT543A
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN MAX
t
w
Pulse duration, LEAB or LEBA low 3.5 3.5 ns
Data before LEAB or LEBA↑
High 3.5 3.5
t
Setu
p
time
D
a
t
a
b
e
f
ore
LEAB
or
LEBA↑
Low 3 3
ns
t
su
Set
u
p
time
Data before CEAB or CEBA↑
High 3.5 3.5
ns
D
a
t
a
b
e
f
ore
CEAB
or
CEBA↑
Low 3 3
t
h
Hold time
Data after LEAB or LEBA↑ 0.5 0.5
ns
t
h
Hold
time
Data after CEAB or CEBA↑ 0.5 0.5
ns