SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS039B – OCTOBER 1980 – REVISED MAY 1995
D Meets or Exceeds the Requireme...
SN75174 QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS039B – OCTOBER 1980 – REVISED MAY 1995
D Meets or Exceeds the Requirements of
ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11.
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D 3-State Outputs D Common-Mode Output
Voltage Range of
– 7 V to 12 V
D Active-High Enable D Thermal Shutdown Protection D Positive- and Negative-Current Limiting D Operates From Single 5-V Supply D Low Power Requirements D Functionally Interchangeable With MC3487
description
The SN75174 is a monolithic quadruple differential line driver with 3-state outputs. It is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11. The device is optimized for balanced multipoint bus transmission at rates up to 4 megabaud. Each driver features wide positive and negative common-mode output
voltage ranges making it suitable for party-line applications in noisy environments.
N PACKAGE (TOP VIEW)
1A 1 1Y 2 1Z 3 1, 2EN 4 2Z 5 2Y 6 2A 7 GND 8
16 VCC 15 4A 14 4Y 13 4Z 12 3, 4EN 11 3Z 10 3Y 9 3A
DW PACKAGE (TOP VIEW)
1A 1 1Y 2 NC 3 1Z 4 1, 2EN 5 2Z 6 NC 7 2Y 8 2A 9 GND 10
20 VCC 19 4A 18 4Y 17 NC 16 4Z 15 3, 4EN 14 3Z 13 NC 12 3Y 11 3A
NC – No internal connection
The SN75174 provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximate...
