Datasheet
54ACT16543, 74ACT16543
16-BIT REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS126B – MARCH 1990 – REVISED APRIL 1996
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature range (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
T
A
= 25°C 54ACT16543 74ACT16543
UNIT
PARAMETER
(INPUT) (OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
AorB
BorA
3.5 6.9 9.5 3.5 10.5 3.5 10.5
ns
t
PHL
A
or
B
B
or
A
3.1 7.3 10.7 3.1 11.6 3.1 11.6
ns
t
PLH
LEBA or LEAB
AorB
3.9 8.6 12.3 3.9 13.8 3.9 13.8
ns
t
PHL
LEBA
or
LEAB
A
or
B
3.9 8.7 12.2 3.9 13.5 3.9 13.5
ns
t
PZH
OEBA or OEAB
AorB
2.6 7.1 10.3 2.6 11.4 2.6 11.4
ns
t
PZL
OEBA
or
OEAB
A
or
B
3.5 8.3 11.9 3.5 13.2 3.5 13.2
ns
t
PHZ
OEBA or OEAB
AorB
4.1 8.2 10.5 4.1 11.1 4.1 11.1
ns
t
PLZ
OEBA
or
OEAB
A
or
B
5 7.3 9.3 5 9.6 5 9.6
ns
t
PZH
CEBA or CEAB
AorB
3.1 7.3 10.7 3.1 11.7 3.1 11.7
ns
t
PZL
CEBA
or
CEAB
A
or
B
3.9 8.5 12.2 3.9 13.5 3.9 13.5
ns
t
PHZ
CEBA or CEAB
AorB
4.6 8.5 11 4.6 11.6 4.6 11.6
ns
t
PLZ
CEBA
or
CEAB
A
or
B
5.2 7.4 9.7 5.2 10.5 5.2 10.5
ns
operating characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
d
Power dissi
p
ation ca
p
acitance
p
er transceiver
Outputs enabled
C
L
=50
p
F
f=1MHz
45
p
F
C
pd
Po
w
er
dissipation
capacitance
per
transcei
v
er
Outputs disabled
C
L
=
50
pF
,
f
=
1
MH
z
12
pF
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design phase of development. Characteristic data and other
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change or discontinue these products without notice.