SN751701P Equivalent & Substitute Parts

Part Overview

The SN751701P is a half-duplex RS232 transceiver IC manufactured by Texas Instruments, housed in an 8-pin DIP package for through-hole mounting. This device functions as a 1/1 transceiver with a 600 mV receiver hysteresis, operating across a 4.5V to 15V supply voltage range and temperature range of -20°C to 70°C. The SN751701P is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is necessary to ensure continued design support, maintain supply chain flexibility, and transition to active product alternatives that maintain functional and electrical compatibility.

Substiute Parts

SN751701P

Texas InstrumentsIn Stock: 2955SN751701P Datasheet

Current PartRFQ

SN751701PSR

Texas InstrumentsIn Stock: 5300SN751701PSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN751701P is determined by strict equivalence across the following critical parameters:

• Protocol Compatibility: RS232 half-duplex transceiver function
• Electrical Specifications: 1/1 driver/receiver configuration, 600 mV receiver hysteresis, 4.5V to 15V supply voltage, -20°C to 70°C operating temperature
• Base Product Number: 751701 (indicates same silicon die and functional core)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The SN751701PSR qualifies as a direct functional substitute based on identical electrical performance and protocol support. The primary difference is packaging format: the SN751701PSR uses surface-mount 8-SOIC (Small Outline Integrated Circuit) technology versus the through-hole 8-DIP package of the SN751701P. Both parts share the same base product number (751701) and maintain full electrical and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The SN751701PSR is the manufacturer-recommended substitute for the SN751701P. Both parts maintain identical electrical specifications, protocol support, and regulatory compliance (ROHS3 Compliant, REACH Unaffected, EAR99 classification). The SN751701PSR carries Active product status, ensuring long-term availability and continued manufacturer support, whereas the SN751701P is Last Time Buy.

Selection between these parts depends on PCB design requirements. The SN751701P suits through-hole assembly processes and designs requiring DIP package compatibility. The SN751701PSR is appropriate for surface-mount assembly and space-constrained applications, offering a smaller footprint (8-SOIC versus 8-DIP). Both parts are functionally interchangeable at the circuit level when appropriate package handling and PCB layout are implemented.

Frequently Asked Questions (FAQ)

Q: Can the SN751701PSR directly replace the SN751701P in an existing design?

A: Electrical and functional replacement is direct. However, PCB layout modification is required due to package differences. The SN751701P uses through-hole DIP mounting, while the SN751701PSR uses surface-mount SOIC technology. Pin-to-pin electrical function is identical, but physical footprint and assembly process differ.

Q: What is the significance of the shared base product number (751701)?

A: The base product number indicates both parts use the same silicon die and core transceiver architecture. This ensures electrical equivalence in protocol support, signal levels, hysteresis characteristics, and supply voltage range.

Q: Why is the SN751701PSR recommended over the SN751701P?

A: The SN751701PSR carries Active product status, guaranteeing continued availability and manufacturer support. The SN751701P is Last Time Buy, indicating end-of-life status and limited future availability.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99. Regulatory and environmental compliance is identical.

Q: What moisture sensitivity level applies to the SN751701PSR?

A: The SN751701PSR has Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture-related handling restrictions during storage or assembly.