DS34C86TMX

Overview

The DS34C86TMX/NOPB is a quad CMOS differential line receiver designed for RS-422, RS-423, and Federal Standards 1020/1030. It operates on a single 5V supply (4.5V to 5.5V) with typical propagation delays of 19 ns and input hysteresis of 60 mV. The device features TRI-STATE outputs with 6 mA drive capability and inputs that do not load the line when VCC is 0V. It includes open input failsafe features and separate enable pins for independent control of receiver pairs.

Feature Summary

• CMOS design optimized for low power consumption while maintaining high-speed performance
• TRI-STATE outputs provide system bus compatibility with independent enable control
• Open input failsafe feature ensures output remains high when inputs are unconnected

Applications

• Balanced digital data transmission systems
• Unbalanced digital data transmission systems
• RS-422 and RS-423 interface circuits

Procurement Notes

Verify the specific ordering suffix against the latest Texas Instruments Package Option Addendum to confirm availability status and packaging details. The 'X' suffix indicates tape and reel packaging, while '/NOPB' denotes lead-free and RoHS-compliant construction. Confirm the active or lifecycle status directly with the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for applications requiring quad differential reception with low power dissipation. Ensure the operating voltage range of 4.5V to 5.5V matches the system supply. Verify that the ±7V common-mode voltage range and ±14V absolute maximum ratings accommodate the signal environment. Consider the 60 mV hysteresis for noise immunity requirements in noisy industrial settings.

Part Context

This part belongs to the DS34C86T family of quad differential line receivers from Texas Instruments. It serves as a CMOS alternative to older bipolar drivers and receivers, offering lower power consumption. The device is pin-compatible with the DS3486, facilitating direct upgrades in existing designs that require improved power efficiency without changing the footprint.

Replacement Considerations

The DS34C86TM/NOPB is a tube-packaged equivalent of the tape-and-reel TMX variant. Designers should verify if the change in packaging affects the PCB assembly process. No functional differences are documented between these variants.