Datasheet

SN54AHCT16245, SN74AHCT16245
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS335J – MARCH 1996 – REVISED OCTOBER 2000
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 SN54AHCT16245 SN74AHCT16245
UNIT
PARAMETER
TEST
CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
V
OH
I
OH
= –50 A
45V
4.4 4.5 4.4 4.4
V
V
OH
I
OH
= –8 mA
4
.
5
V
3.94 3.8 3.8
V
V
OL
I
OL
= 50 A
45V
0.1 0.1 0.1
V
V
OL
I
OL
= 8 mA
4
.
5
V
0.36 0.44 0.44
V
I
I
OE or DIR V
I
= V
CC
or GND 0 V to 5.5 V ±0.1 ±1* ±1 A
I
OZ
†
A or B inputs V
O
= V
CC
or GND 5.5 V ±0.25 ±2.5 ±2.5 A
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 4 40 40 A
∆I
CC
‡
One input at 3.4 V,
Other inputs at
V
CC
or GND
5.5 V 1.35 1.5 1.5 mA
C
i
OE or DIR V
I
= V
CC
or GND 5 V 2.5 10 10 pF
C
io
A or B inputs V
I
= V
CC
or GND 5 V 4 pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at V
CC
= 0 V.
†
For I/O ports, the parameter I
OZ
includes the input leakage current.
‡
This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or V
CC
.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54AHCT16245 SN74AHCT16245
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
AorB
BorA
C
L
=15
p
F
4.5** 8.5** 1** 10** 1 9.5
ns
t
PHL
A
or
B
B
or
A
C
L
=
15
pF
4.5** 8.5** 1** 10** 1 9.5
ns
t
PZH
OE
AorB
C
L
=15
p
F
8.9** 13** 1** 14** 1 14
ns
t
PZL
OE
A
or
B
C
L
=
15
pF
8.9** 13** 1** 14** 1 14
ns
t
PHZ
OE
AorB
C
L
=15
p
F
9.2** 14** 1** 15** 1 15
ns
t
PLZ
OE
A
or
B
C
L
=
15
pF
9.2** 14** 1** 15** 1 15
ns
t
PLH
AorB
BorA
C
L
=50
p
F
7 9.5 1 11 1 10.5
ns
t
PHL
A
or
B
B
or
A
C
L
=
50
pF
5.3 9.5 1 11 1 10.5
ns
t
PZH
OE
AorB
C
L
=50
p
F
8.3 14 1 15 1 15
ns
t
PZL
OE
A
or
B
C
L
=
50
pF
8.3 14 1 15 1 15
ns
t
PHZ
OE
AorB
C
L
=50
p
F
8 14 1 15 1 15
ns
t
PLZ
OE
A
or
B
C
L
=
50
pF
8 14 1 15 1 15
ns
t
sk(o)
C
L
= 50 pF 1*** 1 ns
** On products compliant to MIL-PRF-38535, this parameter is not production tested.
*** On products compliant to MIL-PRF-38535, this parameter does not apply.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.