DS34C86TM

Overview

The DS34C86TM is a quad CMOS differential line receiver manufactured by Texas Instruments. It is designed to meet RS-422, RS-423, and Federal Standards 1020 and 1030 for balanced and unbalanced digital data transmission. The device features an input sensitivity of ±0.2V over a common-mode voltage range of ±7V. Typical propagation delays are 19 ns with typical input hysteresis of 60 mV. It operates on a supply voltage between 4.5 V and 5.5 V, with a quiescent power supply current of 23 mA maximum. The unit is housed in a 16-pin SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• CMOS design optimized for low power consumption while maintaining high-speed performance.
• TRI-STATE outputs provide system bus compatibility with independent enable pins for separate control of receiver pairs.
• Open input failsafe feature ensures the output remains high when inputs are not terminated.
• Internal pull-up and pull-down resistors prevent output oscillation on unused channels.

Applications

• Balanced and unbalanced digital data transmission systems
• RS-422 and RS-423 interface circuits
• Federal Standards 1020 and 1030 compliant applications

Procurement Notes

Verify the specific ordering suffix against the latest TI Package Option Addendum to confirm availability status. The base model may be designated as LIFEBUY or OBSOLETE depending on the packaging variant. Confirm RoHS compliance and lead finish details directly from the manufacturer's documentation before finalizing procurement plans.

Selection Notes

Select this component for applications requiring quad differential reception with TRI-STATE capability. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage range. Verify that the 16-pin SOIC package dimensions fit the target PCB layout constraints. Consider the ±7V common-mode range when interfacing with external circuitry.

Part Context

This part belongs to the DS34C86 family of quad differential line receivers. It serves as a pin-compatible alternative to the DS3486, offering enhanced noise margins through internal hysteresis. The device is engineered for robust signal integrity in noisy environments while maintaining the low power characteristics inherent to CMOS technology.

Replacement Considerations

DS34C86TM/NOPB is a direct replacement offering Green (RoHS & no Sb/Br) compliance and CU SN lead finish. DS34C86TMX/NOPB provides the same functionality in a tape-and-reel format for automated assembly processes.