TRS3318CPWR RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The TRS3318CPWR is a full-duplex RS232 transceiver manufactured by Texas Instruments, featuring 2 drivers and 2 receivers in a 20-TSSOP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a 2.25V to 3V supply voltage range with a maximum data rate of 460 Kbps and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substiute Parts

TRS3318CPWR

Texas InstrumentsIn Stock: 663TRS3318CPWR Datasheet

Current PartRFQ

MAX3318CPWR

Texas InstrumentsIn Stock: 739MAX3318CPWR Datasheet

Parametric EquivalentRFQ

MAX3318ECPWR

Texas InstrumentsIn Stock: 3726MAX3318ECPWR Datasheet

Parametric EquivalentRFQ

TRS3318ECPWR

Texas InstrumentsIn Stock: 3572TRS3318ECPWR Datasheet

Parametric EquivalentRFQ

MAX3318CUP+

Analog Devices Inc./Maxim IntegratedIn Stock: 761MAX3318CUP+ Datasheet

MFR RecommendedRFQ

MAX3318EAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 2245MAX3318EAP+ Datasheet

MFR RecommendedRFQ

MAX3318ECUP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1322MAX3318ECUP+ Datasheet

MFR RecommendedRFQ

MAX3318EEUP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3178MAX3318EEUP+ Datasheet

MFR RecommendedRFQ

TRS3318ECPW

Texas InstrumentsIn Stock: 934TRS3318ECPW Datasheet

MFR RecommendedRFQ

MAX3316ECUP+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3811MAX3316ECUP+T Datasheet

Parametric EquivalentRFQ

MAX3318ECUP+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3901MAX3318ECUP+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TRS3318CPWR is determined by strict equivalence across the following critical parameters:

• RS232 protocol implementation with full-duplex operation
• 2 drivers and 2 receivers configuration
• 300 mV receiver hysteresis specification
• 460 Kbps maximum data rate capability
• 2.25V to 3V supply voltage range
• 20-TSSOP package form factor (0.173", 4.40mm width)
• ROHS3 compliance and MSL 1 rating
• Surface mount mounting type

Substitute parts are grouped into three categories based on product status and packaging configuration: parametric equivalents with active or last-time-buy status, manufacturer-recommended alternatives with different packaging options, and cross-manufacturer equivalents from Analog Devices Inc./Maxim Integrated.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete TRS3318CPWR with minimal design modification, MAX3318CPWR (Active status, Tape & Reel packaging) provides identical electrical and thermal specifications with current product availability.

For designs requiring extended operating temperature range beyond 0°C to 70°C, MAX3318EEUP+ and MAX3318EAP+ support -40°C to 85°C operation. MAX3318EAP+ uses a 20-SSOP package (0.209", 5.30mm width) and requires PCB layout adjustment compared to the original 20-TSSOP footprint.

For high-volume production requiring tape and reel packaging, MAX3318ECUP+T and MAX3316ECUP+T both maintain active product status with 3800 Pcs inventory availability and identical electrical specifications.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX3318EAP+ be used as a direct replacement for TRS3318CPWR?

A: MAX3318EAP+ is electrically equivalent but uses a 20-SSOP package (0.209", 5.30mm width) instead of the original 20-TSSOP package (0.173", 4.40mm width). PCB layout modification is required. The part supports extended operating temperature range (-40°C to 85°C) compared to the original specification (0°C to 70°C).

Q: What is the difference between Tape & Reel and Tube packaging options?

A: Tape & Reel (TR) packaging is standard for automated assembly processes and high-volume production. Tube packaging is used for manual assembly or lower-volume applications. Both packaging types contain identical components with the same electrical specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity level, matching the original TRS3318CPWR specifications.

Q: Which substitute part has the highest current inventory?

A: MAX3318ECPWR and MAX3316ECUP+T both maintain 3800 Pcs inventory. MAX3318ECPWR is available in Cut Tape & Digi-Reel packaging with Last Time Buy status. MAX3316ECUP+T is available in Tape & Reel packaging with Active product status.

Q: Can I use parts with different operating temperature ranges interchangeably?

A: Operating temperature range is a critical specification. Parts rated for -40°C to 85°C (MAX3318EEUP+, MAX3318EAP+) can be used in applications requiring 0°C to 70°C operation. However, parts rated for 0°C to 70°C cannot be used in applications requiring -40°C to 85°C operation.

Q: What is the significance of "Last Time Buy" product status?

A: Last Time Buy indicates the manufacturer will no longer accept new orders after a specified date. Existing inventory remains available for purchase. Parts with Active status (MAX3318CPWR, MAX3318ECUP+T, MAX3316ECUP+T, MAX3318EEUP+) are recommended for new designs requiring long-term availability.