DS34C87TMX

Overview

The DS34C87TMX is a CMOS quad differential line driver designed for digital data transmission over balanced lines. It meets EIA standard RS-422 requirements while maintaining low power consumption. The device accepts TTL or CMOS input levels and translates them to RS-422 output levels. It operates from a single 5V supply with a voltage range of 4.5V to 5.5V. Typical propagation delay is 6 ns, and typical output skew is 0.5 ns. Quiescent current is 500 µA maximum at VCC = 5V. It features tri-state outputs and separate enable circuitry for each pair of drivers.

Feature Summary

• TTL and CMOS input compatible
• Tri-state outputs for system bus connection
• Outputs do not load the line when VCC is 0V
• Separate enable circuitry for each driver pair

Applications

• Serial communication interfaces
• Terminal interfaces
• Balanced line digital data transmission

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and reel specifications. Confirm that the component status aligns with project lifecycle requirements, as availability may vary based on production schedules.

Selection Notes

Select this component for applications requiring RS-422 compliance with low power consumption. Ensure the design accommodates the 5V operating voltage and SOIC-16 surface mount package constraints. Verify input signal levels match the specified TTL/CMOS compatibility thresholds.

Part Context

The DS34C87TMX belongs to the DS34C87T series of quad differential line drivers manufactured by Texas Instruments. It is pin-compatible with the DS3487T and provides enhanced performance characteristics suitable for high-speed serial data transmission in industrial and commercial environments.

Replacement Considerations

DS34C87TM/NOPB (Tube packaging)

FAQ

What is the typical propagation delay of the DS34C87TMX?

The typical propagation delay is 6 ns.

How does the device behave when VCC is 0V?

The outputs will not load the line when VCC is 0V.

Does the DS34C87TMX have shutdown functionality?

No, the device does not have a dedicated shutdown pin; it uses separate enable circuitry for each pair of drivers.