
SN54ABT126, SN74ABT126
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS183H
–
FEBRUARY 1991
–
REVISED MAY 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FUNCTION TABLE
(each buffer)
INPUTS
OE
OUTPUT
Y
A
H
H
H
H
L
L
L
X
Z
logic diagram (positive logic)
1
1OE
2
1A
1Y
3
4
2OE
5
2A
2Y
6
10
3OE
9
3A
3Y
8
13
4OE
12
4A
4Y
11
Pin numbers shown are for the D, DB, J, N, NS, PW, and RGY packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
Input voltage range, V
I
(see Note 1)
Voltage range applied to any output in the high or power-off state, V
O
Current into any output in the low state, I
O
: SN54ABT126
–
0.5 V to 7 V
–
0.5 V to 7 V
–
0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
96 mA
128 mA
–
18 mA
–
50 mA
86
°
C/W
96
°
C/W
80
°
C/W
76
°
C/W
113
°
C/W
47
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ABT126
Input clamp current, I
IK
(V
I
< 0)
Output clamp current, I
OK
(V
O
< 0)
Package thermal impedance,
θ
JA
(see Note 2): D package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): DB package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): N package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): NS package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 2): PW package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(see Note 3): RGY package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
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 JESD 51-7.
3. The package thermal impedance is calculated in accordance with JESD 51-5.
–
65
°
C to 150
°
C