TLC339MD Equivalent & Substitute Parts

Part Overview

The TLC339MD is a general-purpose CMOS comparator with open-drain output, manufactured by Texas Instruments in the LinCMOS™ series. This 14-SOIC surface-mount device integrates four independent comparators suitable for precision voltage comparison applications across industrial and commercial temperature ranges.

The TLC339MD is classified as obsolete, with 1089 units currently in stock. Due to its discontinued status, identifying functionally equivalent and manufacturer-recommended substitute parts is essential for design continuity, procurement planning, and long-term system reliability.

Substiute Parts

TLC339MD

Texas InstrumentsIn Stock: 1165TLC339MD Datasheet

Current PartRFQ

TLC339MDR

Texas InstrumentsIn Stock: 1220TLC339MDR Datasheet

MFR RecommendedRFQ

CMP401GRUZ-REEL

Analog Devices Inc.In Stock: 4922CMP401GRUZ-REEL Datasheet

MFR RecommendedRFQ

CMP401GSZ

Analog Devices Inc.In Stock: 2922CMP401GSZ Datasheet

MFR RecommendedRFQ

CMP402GSZ

Analog Devices Inc.In Stock: 3333CMP402GSZ Datasheet

MFR RecommendedRFQ

TS374IDT

STMicroelectronicsIn Stock: 7898TS374IDT Datasheet

MFR RecommendedRFQ

TLC339MDG4

Texas InstrumentsIn Stock: 874TLC339MDG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC339MD are categorized based on the following substitution criteria:

Primary Substitution Criteria:

• Number of Elements: 4 comparators
• Output Type: CMOS and/or Open-Drain capability
• Voltage Supply Range: Compatibility with 4V ~ 16V single supply or equivalent dual supply
• Package Type: Surface-mount packages (SOIC or TSSOP variants)
• Mounting Type: Surface Mount
• Operating Temperature Range: Minimum -40°C to maximum 125°C or broader

Substitute Categories:

MFR Recommended (Direct Replacement): TLC339MDR is the active-status equivalent from Texas Instruments, maintaining identical electrical specifications and 14-SOIC packaging with Tape & Reel distribution.

Parametric Equivalent: TLC339MDG4 provides identical electrical performance and packaging but carries Last Time Buy status.

Cross-Manufacturer Alternatives: CMP401GRUZ-REEL, CMP401GSZ, CMP402GSZ, and TS374IDT offer functional equivalence with variations in package type, supply voltage configuration, and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Recommended): TLC339MDR is the primary substitute. It maintains identical electrical specifications, output type (CMOS, Open-Drain), supply voltage range (4V ~ 16V), and 14-SOIC packaging. The part carries Active product status with 1203 units in stock, ensuring long-term availability and supply chain continuity. Tape & Reel packaging is suitable for automated assembly processes.

Tier 2 - Parametric Equivalent: TLC339MDG4 provides identical electrical performance and 14-SOIC packaging but carries Last Time Buy status. This part is suitable only for applications where immediate procurement is feasible and long-term supply is not critical.

Tier 3 - Cross-Manufacturer Alternatives (Package Variation): CMP401GSZ and CMP402GSZ (Analog Devices Inc.) offer 16-SOIC packaging with improved propagation delay performance (30ns and 75ns respectively) compared to the TLC339MD (4.5µs). These parts operate on ±5V dual supply rather than single 4V ~ 16V supply. CMP401GRUZ-REEL provides 16-TSSOP packaging with similar electrical characteristics. TS374IDT (STMicroelectronics) offers flexible supply voltage configuration (3V ~ 16V single or ±1.5V ~ 8V dual) with 14-SOIC packaging and superior input bias current (1pA @ 5V).

Compliance Considerations: All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the original TLC339MD certification profile.

Frequently Asked Questions (FAQ)

Q: Can TLC339MDR be used as a direct drop-in replacement for TLC339MD? A: Yes. TLC339MDR is the manufacturer-recommended active substitute with identical electrical specifications, output type, supply voltage range, and 14-SOIC package dimensions. No circuit modifications are required.

Q: What is the key difference between TLC339MD and the Analog Devices CMP401/CMP402 series? A: The primary differences are supply voltage configuration (TLC339MD operates on single 4V ~ 16V supply; CMP401/CMP402 operate on ±5V dual supply), package size (TLC339MD is 14-SOIC; CMP401/CMP402 are 16-SOIC or 16-TSSOP), and propagation delay (TLC339MD: 4.5µs; CMP401: 30ns; CMP402: 75ns). These differences require circuit evaluation before substitution.

Q: Is TS374IDT compatible with TLC339MD applications? A: TS374IDT maintains the 14-SOIC package and supports the same supply voltage range (3V ~ 16V single supply overlaps with TLC339MD's 4V ~ 16V). However, it is classified as a Differential comparator type versus General Purpose, and propagation delay specifications are not provided. Application-specific verification is necessary.

Q: What packaging options are available for TLC339MD substitutes? A: TLC339MDR is supplied in Tape & Reel (TR) format. TLC339MDG4 is supplied in Tube. Analog Devices alternatives are available in Tube (CMP401GSZ, CMP402GSZ) or Cut Tape & Digi-Reel® (CMP401GRUZ-REEL). STMicroelectronics TS374IDT is supplied in Cut Tape & Digi-Reel® format. Select packaging based on assembly process requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original TLC339MD certification.

Q: What is the operating temperature range difference between TLC339MD and its substitutes? A: TLC339MD operates from -55°C to 125°C. Analog Devices (CMP401/CMP402) and STMicroelectronics (TS374IDT) substitutes operate from -40°C to 125°C. Applications requiring -55°C operation must use TLC339MDR or TLC339MDG4.