Datasheet
www.ti.com
Recommended Operating Conditions
(1)
Electrical Characteristics
SN54ABT16244, SN74ABT16244A
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS073H – SEPTEMBER 1991 – REVISED AUGUST 2005
SN54ABT16244 SN74ABT16244A
UNIT
MIN MAX MIN MAX
V
CC
Supply voltage 4.5 5.5 4.5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.8 0.8 V
V
I
Input voltage 0 V
CC
0 V
CC
V
I
OH
High-level output current –24 –32 mA
I
OL
Low-level output current 48 64 mA
∆ t/ ∆ v Input transition rise or fall rate Outputs enabled 10 10 ns/V
T
A
Operating free-air temperature –55 125 –40 85 ° C
(1) All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
over recommended operating free-air temperature range (unless otherwise noted)
T
A
= 25 ° C
(1)
SN54ABT16244 SN74ABT16244A
PARAMETER TEST CONDITIONS UNIT
MIN TYP
(2)
MAX MIN MAX MIN MAX
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 –1.2 –1.2 V
V
CC
= 4.5 V, I
OH
= –3 mA 2.5 2.5 2.5
V
CC
= 5 V, I
OH
= –3 mA 3 3 3
V
OH
V
I
OH
= –24 mA 2 2
V
CC
= 4.5 V
I
OH
= –32 mA 2
(3)
2
I
OL
= 48 mA 0.55 0.55
V
OL
V
CC
= 4.5 V V
I
OL
= 64 mA 0.55
(3)
0.55
V
hys
100 mV
I
I
V
CC
= 5.5 V, V
I
= V
CC
or GND ± 1 ± 1 ± 1 µ A
I
OZH
V
CC
= 5.5 V, V
O
= 2.7 V 10
(4)
10 10
(4)
µ A
I
OZL
V
CC
= 5.5 V, V
O
= 0.5 V –10
(4)
–10 –10
(4)
µ A
I
off
V
CC
= 0, V
I
or V
O
≤ 5.5 V ± 100 ± 100 µ A
V
CC
= 5.5 V,
I
CEX
Outputs high 50 50 50 µ A
V
O
= 5.5 V
I
O
(5)
V
CC
= 5.5 V, V
O
= 2.5 V –50 –100 –180 –50 –180 –50 –180 mA
Outputs high 3 2 3
V
CC
= 5.5 V,
I
CC
I
O
= 0, Outputs low 32 32 32 mA
V
I
= V
CC
or GND
Outputs disabled 3 2 3
V
CC
= 5.5 V, Outputs enabled 0.05 1.5 0.05
Data One input at 3.4 V,
inputs Other inputs at
Outputs disabled 0.05 1 0.05
∆ I
CC
(6)
mA
V
CC
or GND
Control V
CC
= 5.5 V, One input at 3.4 V,
0.05 1.5 0.05
inputs Other inputs at V
CC
or GND
C
i
V
I
= 2.5 V or 0.5 V 3 pF
C
o
V
O
= 2.5 V or 0.5 V 6 pF
(1) Characteristics for T
A
= 25 ° C apply to the SN74ABT16244A only.
(2) All typical values are at V
CC
= 5 V.
(3) On products compliant to MIL-PRF-38535, this parameter does not apply.
(4) This data-sheet limit may vary among suppliers.
(5) Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
(6) This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
4