SP3232EUEN-L Equivalent & Substitute Parts

Part Overview

The SP3232EUEN-L is a 2/2 RS232 transceiver IC manufactured by MaxLinear, Inc., housed in a 16-SOIC surface mount package. This component functions as a full-duplex serial interface converter, translating between RS232 logic levels and standard TTL/CMOS levels for microcontroller and UART applications.

The SP3232EUEN-L is classified as obsolete. Locating equivalent or substitute parts is necessary to support legacy system maintenance, board redesigns, or when original inventory becomes unavailable. Substitute parts must maintain electrical compatibility across key parameters including supply voltage range, data rate, receiver hysteresis, and operating temperature specifications.

Substiute Parts

SP3232EUEN-L

MaxLinear, Inc.In Stock: 834SP3232EUEN-L Datasheet

Current PartRFQ

SP3232EUEA-L/TR

MaxLinear, Inc.In Stock: 2405SP3232EUEA-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP3232EUEN-L is determined by strict alignment of the following electrical and mechanical parameters:

• RS232 protocol compliance
• 2/2 driver/receiver configuration (2 transmitters, 2 receivers)
• 1 Mbps data rate capability
• Supply voltage range of 3V to 5.5V
• Receiver hysteresis of 300 mV
• Operating temperature range of -40°C to 85°C
• Surface mount technology
• 16-pin package format

The primary substitute identified is the SP3232EUEA-L/TR, which maintains all critical electrical parameters while offering an active product status and improved packaging availability in tape and reel format. This part differs only in package type (16-SSOP vs. 16-SOIC) and duplex designation, with both supporting full-duplex operation.

Parameter Comparison

Engineering Selection Recommendations

The SP3232EUEA-L/TR is the direct substitute for the SP3232EUEN-L based on electrical parameter equivalence. Key advantages of the substitute include:

• Active product status ensures continued availability and manufacturing support
• RoHS compliance certification provides environmental and regulatory alignment
• Tape and reel packaging supports automated assembly processes
• Identical electrical specifications guarantee functional compatibility

The primary consideration for substitution is the package format change from 16-SOIC to 16-SSOP. While both are 16-pin surface mount packages, the SSOP variant has a larger body width (5.30mm vs. 3.90mm). PCB layout modifications may be required to accommodate the different footprint dimensions. Pin-to-pin electrical compatibility is maintained.

Frequently Asked Questions (FAQ)

Q: Can the SP3232EUEA-L/TR be used as a direct replacement for the SP3232EUEN-L?

A: Yes, from an electrical standpoint. Both parts maintain identical supply voltage ranges (3V to 5.5V), data rate (1 Mbps), receiver hysteresis (300 mV), and operating temperature specifications (-40°C to 85°C). The primary difference is the package format: SOIC versus SSOP. PCB footprint redesign is necessary.

Q: What is the difference between 16-SOIC and 16-SSOP packages?

A: Both are 16-pin surface mount packages. The SOIC (Small Outline Integrated Circuit) measures 0.154" (3.90mm) in width, while the SSOP (Shrink Small Outline Package) measures 0.209" (5.30mm) in width. The SSOP is slightly wider but maintains the same pin pitch and electrical connectivity.

Q: Does the SP3232EUEA-L/TR support the same RS232 protocol as the original part?

A: Yes. Both parts implement the RS232 protocol with 2 drivers and 2 receivers, supporting full-duplex serial communication at 1 Mbps.

Q: What does RoHS compliance mean for the SP3232EUEA-L/TR?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the part is manufactured without lead, cadmium, mercury, and other restricted substances. This is relevant for applications subject to environmental regulations or customer requirements.

Q: Are there any moisture sensitivity differences between these parts?

A: Yes. The SP3232EUEN-L has MSL 1 (unlimited shelf life), while the SP3232EUEA-L/TR has MSL 2 (1-year shelf life). MSL 2 parts require controlled storage conditions and have a defined floor life after moisture exposure.