SP3232EEN RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP3232EEN is an active RS232 interface transceiver IC designed for full-duplex serial communication applications. This 16-pin surface-mount device integrates 2 drivers and 2 receivers, enabling bidirectional data transmission at rates up to 250 kbps. The part operates across dual supply voltage ranges (3V–3.6V and 4.5V–5.5V) and maintains an industrial operating temperature range of 0°C to 70°C. With active product status and full RoHS3 compliance, the SP3232EEN serves as a standard interface component in embedded systems, industrial controllers, and communication equipment. Equivalent substitute parts are identified based on matching electrical specifications, mechanical packaging, and regulatory compliance to ensure direct functional interchangeability.

Substiute Parts

SP3232EEN

UMWIn Stock: 65159SP3232EEN Datasheet

Current PartRFQ

MAX3232ESE

UMWIn Stock: 25158MAX3232ESE Datasheet

Parametric EquivalentRFQ

ST3232BDR

UMWIn Stock: 50258ST3232BDR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SP3232EEN are qualified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is founded on the following key parameters that determine functional interchangeability:

Electrical Equivalence Criteria:

• Protocol: RS232 (identical)
• Driver/Receiver Configuration: 2/2 (identical)
• Duplex Mode: Full (identical)
• Data Rate: 250 kbps (identical)
• Receiver Hysteresis: 300 mV (identical)
• Supply Voltage Ranges: 3V–3.6V and 4.5V–5.5V (identical)
• Operating Temperature Range: 0°C to 70°C (identical)

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount (identical)
• Package / Case: 16-SOIC (0.154", 3.90mm Width) (identical)
• Supplier Device Package: 16-SOP (identical)

Regulatory & Compliance Equivalence:

• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)
• Product Status: Active (identical)

All substitute parts listed below satisfy these criteria without exception, ensuring direct pin-for-pin and functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SP3232EEN, MAX3232ESE, and ST3232BDR—are functionally equivalent RS232 transceiver ICs with identical electrical specifications, mechanical packaging, and regulatory compliance profiles. Selection among these parts is based on availability and supply chain considerations rather than technical differentiation.

Availability Status:

• SP3232EEN: 65,100 pcs in stock
• MAX3232ESE: 25,100 pcs in stock
• ST3232BDR: 50,223 pcs in stock

Compliance & Regulatory Status: All three parts maintain active product status, full RoHS3 compliance, REACH unaffected designation, and identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Moisture sensitivity level 1 (unlimited) indicates no special handling requirements during storage or assembly.

Packaging & Logistics: All parts are supplied in Cut Tape (CT) and Digi-Reel® packaging formats, enabling seamless integration into standard component procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can MAX3232ESE or ST3232BDR be used as direct replacements for SP3232EEN?

A: Yes. Both MAX3232ESE and ST3232BDR are parametric equivalents of SP3232EEN. All three parts share identical electrical specifications (RS232 protocol, 2/2 driver/receiver configuration, 250 kbps data rate, 300 mV receiver hysteresis, dual supply voltage ranges, and 0°C to 70°C operating temperature), identical mechanical packaging (16-SOIC, 3.90mm width), and identical regulatory compliance (RoHS3, MSL 1). Direct pin-for-pin substitution is supported without circuit modification.

Q: Are there any differences in package dimensions between these parts?

A: No. All three parts use the 16-SOIC (0.154", 3.90mm Width) package with 16-SOP supplier device package designation. PCB footprints and assembly processes are identical across all three parts.

Q: What is the significance of Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates that these parts have no moisture sensitivity restrictions. Standard storage conditions and handling procedures apply without special desiccant or humidity control requirements during component storage, transportation, or assembly.

Q: Do all three parts meet the same regulatory and compliance standards?

A: Yes. SP3232EEN, MAX3232ESE, and ST3232BDR all carry RoHS3 compliance, REACH unaffected status, and identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. All parts are suitable for applications requiring regulatory compliance in industrial, commercial, and consumer markets.

Q: What data rate do these transceiver ICs support?

A: All three parts support a maximum data rate of 250 kbps, consistent with standard RS232 serial communication protocols used in industrial controllers, embedded systems, and legacy communication interfaces.

Q: Are these parts suitable for 3.3V and 5V supply applications?

A: Yes. All three parts operate across dual supply voltage ranges: 3V–3.6V (for 3.3V systems) and 4.5V–5.5V (for 5V systems). This dual-range capability enables use in mixed-voltage environments without additional voltage regulation.