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Home > Semiconductors > Interface ICs > RS-422/RS-485 Interface IC > National Semiconductor DS34C87TM Quad Transmitter RS-422 Interface SMD SOIC-16

National Semiconductor DS34C87TM Quad Transmitter RS-422 Interface SMD SOIC-16

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Quick Overview

DS34C87TM National Semiconductor Integrated Circuits (ICs) 4/0 Driver RS422, RS485 16-SOIC

National Semiconductor DS34C87TM Quad Transmitter RS-422 Interface SMD SOIC-16

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DS34C87TM/NOPB National Semiconductor (Texas Instruments) RS-422 Interface IC Line RS422, 4-drivers, 4.75V-5.25V Supply, SOIC-16

The DS34C87TM is a quad differential line driver designed for digital data transmission over balanced lines. The DS34C87T meets all the requirements of EIA standard RS-422 while retaining the low power characteristics of CMOS. This enables the construction of serial and terminal interfaces while maintaining minimal power consumption. The DS34C87T accepts TTL or CMOS input levels and translates these to RS-422 output levels. This part uses special output circuitry that enables the individual drivers to power down without loading down the bus. This device has separate enable circuitry for each pair of the four drivers. The DS34C87T is pin compatible to the DS3487T. All inputs are protected against damage due to electrostatic discharge by diodes to VCC and ground.


TTL input compatible Typical propagation delays: 6 ns Typical output skew: 0.5 ns Outputs won't load line when VCC = 0V Meets the requirements of EIA standard RS-422 Operation from single 5V supply TRI-STATE outputs for connection to system buses Low quiescent current Available in surface mount.

  • Driver IC Type:Line
  • No. of Drivers:4
  • Driver IC Case Style:SOIC
  • No. of Pins:16
  • Operating Temperature Range:-40°C to +85°C
  • Case Style:SOIC
  • Max Operating Temperature:85°C
  • Min Temperature Operating:-40°C
  • Base Number:34
  • IC Generic Number:34C87
  • Interface Type:RS-422
  • Logic Function Number:34C87
  • Max Output Voltage:3.4V
  • Max Supply Voltage:5.5V
  • Min Supply Voltage:4.5V
  • Termination Type:SMD
  • Line / Bus Driver / Receiver / Transceiver Type:Quad CMOS Differential RS422
  • No. of Channels:4
  • Propagation Delay:8ns

Additional Information

Manufacturer: Texas Instruments
Product Category: RS-422 Interface IC
Number of Drivers: 4 Driver
Operating Supply Voltage: 5 V
Maximum Operating Temperature: + 85 C
Minimum Operating Temperature: - 40 C
Mounting Style: SMD/SMT
Package / Case: SOIC-16
Brand: Texas Instruments
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