AM26C31C, AM26C31I, AM26C31M
QUADRUPLE DIFFERENTIAL LINE DRIVERS


SLLS103G – DECEMBER 1990 – REVISED SEPTEMBER 1998
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
C0068 Meet or Exceed the Requirements of
TIA/EIA-422-B and ITU Recommendation
V.11
C0068 Low Power, I
CC
= 100 µA Typ
C0068 Operate From a Single 5-V Supply
C0068 High Speed, t
PLH
= t
PHL
= 7 ns Typ
C0068 Low Pulse Distortion, t
sk(p)
= 0.5 ns Typ
C0068 High Output Impedance in Power-Off
Conditions
C0068 Improved Replacement for AM26LS31

description
The AM26C31C, AM26C31I, and AM26C31M are
four complementary-output line drivers designed
to meet the requirements of TIA/EIA-422-B and
ITU (formerly CCITT). The 3-state outputs have
high-current capability for driving balanced lines,
such as twisted-pair or parallel-wire transmission
lines, and they provide the high-impedance state
in the power-off condition. The enable function is
common to all four drivers and offers the choice of
an active-high or active-low enable input.
BiCMOS circuitry reduces power consumption
without sacrificing speed.
The AM26C31C is characterized for operation
from 0°C to 70°C, the AM26C31I is characterized
for operation from –40°C to 85°C, and the
AM26C31M is characterized for operation from
–55°C to 125°C.
FUNCTION TABLE
(each driver)
INPUT
ENABLES OUTPUTS
A
G G Y Z
H H X H L
L H XLH
H XLHL
L XLLH
X LHZZ
H = high level, L = low level, X = irrelevant,
Z = high impedance (off)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1Y
1Z
G
2Z
2Y
2A
GND
V
CC
4A
4Y
4Z
G
3Z
3Y
3A
AM26C31C, AM26C31I . . . D, DB
†
, OR N PACKAGE
AM26C31M ...J OR W PACKAGE
(TOP VIEW)
AM26C31M . . . FK PACKAGE
(TOP VIEW)
†
The DB package is only available left-ended taped
(order AM26C31IDBLE or AM26C31CDBLE).
NC – No internal connection
3212019
910111213
4
5
6
7
8
18
17
16
15
14
4Y
4Z
NC
G
3Z
1Z
G
NC
2Z
2Y
1Y 1A NC
3A 3Y
4A
2A
GND
NC
CC
V

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  1998, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.