SN75C3238PW RS232 Transceiver - Equivalent & Substitute Parts

Part Overview

The SN75C3238PW is a full-duplex RS232 transceiver manufactured by Texas Instruments, featuring 5 drivers and 3 receivers in a 28-TSSOP surface mount package. This device is classified as Last Time Buy, indicating discontinued production. The SN75C3238PW operates across a 3V to 5.5V supply range with a maximum data rate of 1 Mbps and supports industrial temperature ranges from 0°C to 70°C. Locating equivalent substitute parts is necessary due to the Last Time Buy status and potential supply constraints.

Substiute Parts

SN75C3238PW

Texas InstrumentsIn Stock: 1177SN75C3238PW Datasheet

Current PartRFQ

SP3238EEY-L

MaxLinear, Inc.In Stock: 2409SP3238EEY-L Datasheet

MFR RecommendedRFQ

SP3238EEY-L/TR

MaxLinear, Inc.In Stock: 8300SP3238EEY-L/TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN75C3238PW must satisfy the following critical parameters to ensure functional compatibility:

• Protocol: RS232 full-duplex transceiver
• Driver/Receiver Configuration: 5 drivers and 3 receivers
• Package: 28-TSSOP surface mount
• Supply Voltage Range: 3V ~ 5.5V
• Duplex Mode: Full-duplex operation

The substitute parts identified (SP3238EEY-L and SP3238EEY-L/TR) maintain identical driver/receiver counts, package specifications, and voltage supply ranges. These parts are manufactured by MaxLinear, Inc., and carry Active product status, ensuring continued availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The SP3238EEY-L and SP3238EEY-L/TR are direct functional equivalents for the SN75C3238PW. Both substitute parts maintain identical electrical specifications for protocol, driver/receiver configuration, supply voltage, and package form factor. The substitute parts offer extended operating temperature ranges (-40°C to 85°C versus 0°C to 70°C), providing enhanced thermal performance for demanding applications.

Both substitute parts carry Active product status, ensuring long-term availability and supply chain continuity. SP3238EEY-L/TR is available in higher inventory (8,238 pieces) compared to SP3238EEY-L (2,300 pieces), making it the preferred selection for volume requirements. Both parts maintain full RoHS compliance and MSL Level 1 moisture sensitivity ratings, meeting environmental and regulatory standards equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Are SP3238EEY-L and SP3238EEY-L/TR pin-compatible with SN75C3238PW?

A: Yes. All three parts use the 28-TSSOP package with identical pinout configurations. Direct PCB substitution is possible without layout modifications.

Q: What is the difference between SP3238EEY-L and SP3238EEY-L/TR?

A: Both parts are functionally identical. The primary difference is packaging designation: SP3238EEY-L is supplied in tube packaging, while SP3238EEY-L/TR is supplied in tape and reel format. SP3238EEY-L/TR offers higher inventory availability.

Q: Can I use these substitutes in applications requiring the 0°C to 70°C temperature range?

A: Yes. The substitute parts operate across -40°C to 85°C, which encompasses the original 0°C to 70°C range. Applications within the original temperature specification will function without thermal limitations.

Q: Are there differences in data rate specifications between the main part and substitutes?

A: The SN75C3238PW specifies 1 Mbps maximum data rate, while SP3238EEY-L and SP3238EEY-L/TR specify 250 kbps. For applications requiring data rates above 250 kbps, verify substitute part performance against specific system requirements.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and carry ECCN EAR99 classification. Moisture sensitivity levels are identical at MSL Level 1 (Unlimited).