Datasheet
SN54AHC16540, SN74AHC16540
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS331F – MARCH 1996 – REVISED JANUARY 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 SN54AHC16540 SN74AHC16540
UNIT
PARAMETER
TEST
CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 1.9 2 1.9 1.9
I
OH
= –50 A
3 V 2.9 3 2.9 2.9
V
OH
4.5 V 4.4 4.5 4.4 4.4
V
I
OH
= –4 mA 3 V 2.58 2.48 2.48
I
OH
= –8 mA 4.5 V 3.94 3.8 3.8
2 V 0.1 0.1 0.1
I
OL
= 50 A
3 V 0.1 0.1 0.1
V
OL
4.5 V 0.1 0.1 0.1
V
I
OL
= 4 mA 3 V 0.36 0.5 0.44
I
OL
= 8 mA 4.5 V 0.36 0.5 0.44
I
I
V
I
= V
CC
or GND 0 V to 5.5 V ±0.1 ±1* ±1 A
I
OZ
V
O
= V
CC
or GND,
V
I
(OE
) = V
IL
or V
IH
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
C
i
V
I
= V
CC
or GND 5 V 2 10 10 pF
C
o
V
O
= V
CC
or GND 5 V 3 pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at V
CC
= 0 V.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO LOAD
T
A
= 25°C SN54AHC16540 SN74AHC16540
UNIT
PARAMETER
(INPUT) (OUTPUT) CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
PLH
A
Y
C
L
=15
p
F
4.8** 8.4** 1** 10** 1 10
ns
t
PHL
A
Y
C
L
=
15
pF
4.8** 8.4** 1** 10** 1 10
ns
t
PZH
OE
Y
C
L
=15
p
F
6.8** 10.6** 1** 12.5** 1 12.5
ns
t
PZL
OE
Y
C
L
=
15
pF
6.8** 10.6** 1** 12.5** 1 12.5
ns
t
PHZ
OE
Y
C
L
=15
p
F
6.8** 11.5** 1** 12.5** 1 12.5
ns
t
PLZ
OE
Y
C
L
=
15
pF
6.8** 11.5** 1** 12.5** 1 12.5
ns
t
PLH
A
Y
C
L
=50
p
F
7.7 11 1 12.5 1 12.5
ns
t
PHL
A
Y
C
L
=
50
pF
7.3 11 1 12.5 1 12.5
ns
t
PZH
OE
Y
C
L
=50
p
F
9.7 14.1 1 16 1 16
ns
t
PZL
OE
Y
C
L
=
50
pF
7.1 14.1 1 16 1 16
ns
t
PHZ
OE
Y
C
L
=50
p
F
9.4 14 1 16 1 16
ns
t
PLZ
OE
Y
C
L
=
50
pF
9.7 14 1 16 1 16
ns
t
sk(o)
C
L
= 50 pF 1.5*** 1.5 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.