SN75159 Datasheet, PDF (1/12 Pages) Texas Instruments – DUAL DIFFERENTIAL LINE DRIVER WITH 3-STATE OUTPUTS

D Meets or Exceeds the Requirements of
ANSI EIA/TIA-422-B and ITU
Recommendation V.11
D Single 5-V Supply
D Balanced Line Operation
D TTL Compatible
D High-Impedance Output State for
Party-Line Applications
D High-Current Active-Pullup Outputs
D Short-Circuit Protection
D Dual Channels
D Clamp Diodes at Inputs
SN75159
DUAL DIFFERENTIAL LINE DRIVER
WITH 3-STATE OUTPUTS
SLLS088B – JANUARY 1977 – REVISED MAY 1995
D OR N PACKAGE
(TOP VIEW)
NC ₁
1Z ₂
1Y 3
1A 4
1B 5
1EN 6
GND 7
14 V_CC
13 2Z
12 2Y
11 2B
10 2A
9 2EN
8 NC
NC – No internal connection
description
The SN75159 dual differential line driver with 3-state outputs is designed to provide all the features of the
SN75158 line driver with the added feature of driver output controls. There is an individual control for each driver.
When the output control is low, the associated outputs are in a high-impedance state and the outputs can neither
drive nor load the bus. This permits many devices to be connected together on the same transmission line for
party-line applications.
The SN75159 is characterized for operation from 0°C to 70°C.
logic symbol^†
logic diagram (positive logic)
1EN ⁶
1A ⁴
1B ⁵
2EN ⁹
2A ¹⁰
2B ¹¹
&
EN
3
1Y
2
1Z
12 _2Y
13 _2Z
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
6
1EN
1A ⁴
5
1B
9
2EN
2A ¹⁰
11
2B
3 _1Y
2 _1Z
12 _2Y
13 _2Z
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.
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.
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Copyright © 1995, Texas Instruments Incorporated
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