Datasheet
SN54ACT16245, 74ACT16245
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS097B – DECEMBER 1989 – REVISED APRIL 1996
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C SN54ACT16245 74ACT16245
UNIT
PARAMETER
TEST
CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
I
OH
=50A
4.5 V 4.4 4.4 4.4
I
OH
= –
50
A
5.5 V 5.4 5.4 5.4
V
OH
I
OH
=24mA
4.5 V 3.94 3.94 3.8
V
V
OH
I
OH
= –
24
mA
5.5 V 4.94 4.94 4.8
V
I
OH
= –50 mA 5.5 V 3.85
I
OH
= –75 mA 5.5 V 3.85
I
OL
=50 A
4.5 V 0.1 0.1 0.1
I
OL
=
50
A
5.5 V 0.1 0.1 0.1
V
OL
I
OL
=24mA
4.5 V 0.36 0.5 0.44
V
V
OL
I
OL
=
24
mA
5.5 V 0.36 0.5 0.44
V
I
OL
= 50 mA 5.5 V 1.65
I
OL
= 75 mA 5.5 V 1.65
I
I
Control inputs V
I
= V
CC
or GND 5.5 V ±0.1 ±1 ±1 A
I
OZ
A or B ports V
O
= V
CC
or GND 5.5 V ±0.5 ±10 ±5 A
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 8 160 80 A
∆I
CC
One input at 3.4 V,
Other inputs at GND or V
CC
5.5 V 0.9 1 1 mA
C
i
Control inputs V
I
= V
CC
or GND 5 V 4.5 pF
C
io
A or B ports V
O
= V
CC
or GND 5 V 16 pF
†
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
‡
For I/O ports, the parameter I
OZ
includes the input leakage current I
I
.
§
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or V
CC
.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
T
A
= 25°C SN54ACT16245 74ACT16245
UNIT
PARAMETER
(INPUT) (OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
AorB
BorA
3.2 6.9 9.3 3.2 11.5 3.2 10.5
ns
t
PHL
A
or
B
B
or
A
2.6 6.4 9.2 2.6 11.1 2.6 10.2
ns
t
PZH
G
BorA
2.7 6.4 9.1 2.7 10.9 2.7 10
ns
t
PZL
G
B
or
A
3.4 7.4 10.5 3.4 12.6 3.4 11.6
ns
t
PHZ
G
BorA
5.8 9.2 11.6 5.8 13.4 5.8 12.6
ns
t
PLZ
G
B
or
A
5.5 8.5 10.8 5.5 12.7 5.5 11.8
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
52
p
F
C
pd
Po
w
er
dissipation
capacitance
per
transcei
v
er
Outputs disabled
C
L
=
50
pF
,
f
=
1
MH
z
10
pF