DS34C87TM Equivalent & Substitute Parts

Part Overview

The DS34C87TM is a 4/0 Driver IC for RS422 and RS485 protocols, manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The DS34C87TM operates within a supply voltage range of 4.5V to 5.5V and maintains functionality across an operating temperature range of -40°C to 85°C.

Substiute Parts

DS34C87TM

Texas InstrumentsIn Stock: 3155DS34C87TM Datasheet

Current PartRFQ

DS34C87TM/NOPB

Texas InstrumentsIn Stock: 4855DS34C87TM/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS34C87TM is determined by strict equivalence across the following critical parameters:

• Protocol support: RS422 and RS485
• Driver/Receiver configuration: 4/0 (4 drivers, 0 receivers)
• Package type: 16-SOIC surface mount
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Electrical pin compatibility and functional equivalence

The DS34C87TM/NOPB qualifies as a direct substitute based on identical electrical specifications, protocol support, pin configuration, and package format. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The DS34C87TM/NOPB is the direct equivalent substitute for the DS34C87TM. Both components share identical electrical specifications, protocol support, pin configuration, and package format. The DS34C87TM/NOPB is classified as Active product status, ensuring continued availability and manufacturing support. Additionally, the DS34C87TM/NOPB carries ROHS3 compliance certification, whereas the original DS34C87TM is RoHS non-compliant. For new designs or procurement requiring regulatory compliance, the DS34C87TM/NOPB is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the DS34C87TM/NOPB be used as a direct replacement for the DS34C87TM?

A: Yes. Both components are electrically and functionally equivalent. They share identical driver/receiver configuration (4/0), protocol support (RS422/RS485), supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 16-SOIC package format. Pin-to-pin compatibility is maintained.

Q: What is the significance of the "/NOPB" suffix in the DS34C87TM/NOPB part number?

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging, reflecting RoHS3 compliance. This designation distinguishes the part from legacy versions and confirms adherence to lead-free manufacturing standards.

Q: Why is the DS34C87TM classified as obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active manufacturing and support for this specific part number variant. The DS34C87TM/NOPB remains in active production as the current equivalent.

Q: Are there any differences in electrical performance between the DS34C87TM and DS34C87TM/NOPB?

A: No. Both components deliver identical electrical performance across all specified parameters, including supply voltage tolerance, operating temperature range, and RS422/RS485 protocol functionality.

Q: What packaging format is used for the DS34C87TM/NOPB?

A: The DS34C87TM/NOPB is supplied in Tube packaging in a 16-SOIC surface mount package with 0.154" (3.90mm) width.