Datasheet
SCBS704F − AUGUST 1997 − REVISED OCTOBER 2003
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 1)
SN54LVTH543 SN74LVTH543
V
CC
= 3.3 V
± 0.3 V
V
CC
= 2.7 V
V
CC
= 3.3 V
± 0.3 V
V
CC
= 2.7 V
UNIT
MIN MAX MIN MAX MIN MAX MIN MAX
t
w
Pulse duration, LEAB or LEBA low 3.3 3.3 3.3 3.3 ns
A or B before
Data high 0.4 0.4 0.4 0.4
t
su
Setup time
A or B before
LEAB or LEBA↑
Data low 1 1.5 1 1.5
ns
t
su
Setup time
A or B before
Data high 0.2 0.2 0.2 0.2
ns
A or B before
CEAB or CEBA↑
Data low 0.7 1.2 0.7 1.2
A or B after
Data high 1.5 0.6 1.5 0.6
t
h
Hold time
A or B after
LEAB or LEBA↑
Data low 1.3 1.5 1.3 1.5
ns
t
h
Hold time
A or B after
Data high 1.6 0.5 1.6 0.5
ns
A or B after
CEAB or CEBA↑
Data low 1.4 1.6 1.4 1.6
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
SN54LVTH543 SN74LVTH543
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 3.3 V
± 0.3 V
V
CC
= 2.7 V
V
CC
= 3.3 V
± 0.3 V
V
CC
= 2.7 V
UNIT
(INPUT)
(OUTPUT)
MIN MAX MIN MAX MIN TYP
†
MAX MIN MAX
t
PLH
A or B
B or A
1.2 3.9 4.5 1.3 2.5 3.7 4.3
ns
t
PHL
A or B B or A
1.2 3.9 4.5 1.3 2.5 3.7 4.3
ns
t
PLH
LE
A or B
1.2 5.1 6.1 1.3 2.9 4.7 5.9
ns
t
PHL
LE
A or B
1.2 5.1 6.1 1.3 2.9 4.7 5.9
ns
t
PZH
OE
A or B
1 5.1 6.4 1.1 2.9 4.9 6.2
ns
t
PZL
OE
A or B
1 5.1 6.4 1.1 3.2 4.9 6.2
ns
t
PHZ
OE
A or B
1.9 5.6 6.2 2 3.4 5.3 5.9
ns
t
PLZ
OE
A or B
1.9 5.6 6.2 2 3.7 5.3 5.9
ns
t
PZH
CE
A or B
1.2 5.5 7 1.3 3.2 5.3 6.8
ns
t
PZL
CE
A or B
1.2 5.5 7 1.3 3.5 5.3 6.8
ns
t
PHZ
CE
A or B
2.2 5.7 6.2 2.3 3.8 5.4 5.9
ns
t
PLZ
CE
A or B
2.2 5.7 5.9 2.3 3.9 5.4 5.6
ns
†
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.
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