TLC354CPW Equivalent & Substitute Parts

Part Overview

The TLC354CPW is a 4-channel differential comparator manufactured by Texas Instruments in 14-TSSOP surface mount packaging. This LinCMOS™ series device operates across a wide supply voltage range of 1.4V to 16V (single supply) or ±0.7V to ±8V (dual supply), making it suitable for low-voltage and general-purpose comparison applications. The device is currently in Last Time Buy status, necessitating identification of active alternative components for ongoing design requirements and production continuity.

Substiute Parts

TLC354CPW

Texas InstrumentsIn Stock: 803TLC354CPW Datasheet

Current PartRFQ

TS339CPT

STMicroelectronicsIn Stock: 8156TS339CPT Datasheet

MFR RecommendedRFQ

TS339IPT

STMicroelectronicsIn Stock: 19183TS339IPT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC354CPW is determined by the following critical parameters:

• Package Compatibility: Both substitute parts maintain the 14-TSSOP surface mount package, ensuring mechanical and electrical pin compatibility
• Channel Configuration: All parts provide 4 independent comparator elements
• Output Architecture: Substitute parts feature CMOS and Open-Drain outputs, compatible with the TLC354CPW output stage
• Supply Voltage Range: Substitute parts operate within 2.7V to 16V (single supply) or ±1.35V to ±8V (dual supply), overlapping the TLC354CPW operating range for most applications
• Input Offset Voltage: All parts maintain 5mV maximum input offset specification
• Output Current: All parts deliver 20mA typical output current
• Compliance: All parts meet ROHS3, REACH, and MSL requirements

The TS339CPT and TS339IPT are manufacturer-recommended alternatives from STMicroelectronics, both based on the TS339 platform. These parts differ primarily in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and operating temperature range, with the TS339IPT extending to -40°C to 125°C.

Parameter Comparison

Engineering Selection Recommendations

TS339CPT is suitable for applications requiring standard industrial temperature operation (0°C to 70°C) with Tape & Reel packaging for high-volume production environments. This part maintains full electrical compatibility with the TLC354CPW across the overlapping supply voltage range and offers improved quiescent current characteristics (25µA versus 800µA).

TS339IPT extends the operating temperature range to -40°C to 125°C, accommodating automotive and extended-temperature industrial applications. This part is available in Cut Tape & Digi-Reel packaging, suitable for lower-volume or mixed-component procurement scenarios. Both TS339 variants are Active products with established supply chains, ensuring long-term availability.

Selection between TS339CPT and TS339IPT depends on temperature requirements and packaging logistics. Both parts satisfy ROHS3 compliance, REACH requirements, and MSL Level 1 specifications identical to the TLC354CPW.

Frequently Asked Questions (FAQ)

Q: Can TS339CPT or TS339IPT directly replace TLC354CPW in existing designs?

A: Direct pin-compatible replacement is possible for applications operating within the overlapping supply voltage range (2.7V to 16V single supply or ±1.35V to ±8V dual supply). Designs utilizing the TLC354CPW's extended low-voltage capability (1.4V minimum) require circuit evaluation. Both substitute parts maintain identical 14-TSSOP pinout and output current specifications.

Q: What is the primary difference between TS339CPT and TS339IPT?

A: The TS339CPT operates from 0°C to 70°C and is supplied in Tape & Reel packaging. The TS339IPT extends operation to -40°C to 125°C and is supplied in Cut Tape & Digi-Reel packaging. Electrical specifications are identical between the two variants.

Q: How do quiescent current differences affect circuit design?

A: The TS339 series exhibits significantly lower quiescent current (25µA maximum) compared to the TLC354CPW (800µA maximum). This improvement reduces power consumption in battery-powered or low-power applications without requiring circuit modifications, as the lower current is a beneficial characteristic.

Q: Are there supply voltage limitations when substituting?

A: Applications requiring single supply voltages below 2.7V or dual supply voltages below ±1.35V cannot use TS339 substitutes. The TLC354CPW supports operation down to 1.4V single supply or ±0.7V dual supply. Verify your circuit's minimum supply voltage requirement before substitution.

Q: Do packaging format differences affect electrical performance?

A: No. Tape & Reel (TS339CPT) and Cut Tape & Digi-Reel (TS339IPT) packaging formats do not affect electrical characteristics. Selection is based on procurement volume and assembly line requirements.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. TLC354CPW, TS339CPT, and TS339IPT are all ROHS3 compliant, REACH unaffected, and classified as MSL Level 1 (unlimited moisture sensitivity).