Datasheet

SN54ABT16827, SN74ABT16827
20-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS220C – JUNE 1992 – REVISED MAY 1997
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
1Y1
2
1
55
1OE1
1OE2
56
2Y1
15
28
42
29
2OE1
2OE2
To Nine Other Channels To Nine Other Channels
1A1
2A1
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, V
O
–0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .
Current into any output in the low state, I
O
: SN54ABT16827 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT16827 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Note 2): DL package 74°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51.
recommended operating conditions (see Note 3)
SN54ABT16827 SN74ABT16827
UNIT
MIN MAX MIN MAX
UNIT
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
In
p
ut transition rise or fall rate
Control pins 4 4
ns/V
∆t/∆
v
Inp
u
t
transition
rise
or
fall
rate
Data pins 10 10
ns/V
∆t/∆V
CC
Power-up ramp rate 200 200 µs/V
T
A
Operating free-air temperature –55 125 –40 85 °C
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
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change or discontinue these products without notice.