TLC339ID Equivalent & Substitute Parts

Part Overview

The TLC339ID is a general-purpose CMOS comparator with open-drain output, manufactured by Texas Instruments in a 14-SOIC surface-mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The TLC339ID serves in applications requiring low-power comparison operations across a wide supply voltage range of 3V to 16V.

Substiute Parts

TLC339ID

Texas InstrumentsIn Stock: 1396TLC339ID Datasheet

Current PartRFQ

TLC339IDR

Texas InstrumentsIn Stock: 2317TLC339IDR Datasheet

MFR RecommendedRFQ

CMP401GSZ

Analog Devices Inc.In Stock: 2922CMP401GSZ Datasheet

MFR RecommendedRFQ

CMP401GSZ-REEL

Analog Devices Inc.In Stock: 2718CMP401GSZ-REEL Datasheet

MFR RecommendedRFQ

CMP402GSZ-REEL

Analog Devices Inc.In Stock: 19624CMP402GSZ-REEL Datasheet

MFR RecommendedRFQ

TS339IDT

STMicroelectronicsIn Stock: 15817TS339IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC339ID are grouped based on the following critical parameters that determine functional compatibility:

Group 1: Direct Equivalents (Same Package, Same Output Type)

• TLC339IDR: Identical electrical specifications and 14-SOIC package with CMOS open-drain output. Differs only in packaging format (Tape & Reel vs. Tube) and product status (Active vs. Obsolete).
• TS339IDT: Maintains 14-SOIC package and CMOS open-drain output. Electrical specifications are equivalent with enhanced input bias current performance (1pA vs. 5pA) and lower quiescent current (25µA vs. 125µA). Extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C).

Group 2: Functional Alternatives (Different Package, Different Output Type)

• CMP401GSZ and CMP401GSZ-REEL: 16-SOIC package with CMOS/TTL output. Improved input offset voltage (3mV vs. 5mV) and faster propagation delay (30ns vs. 4.5µs). Supply voltage limited to ±5V. Hysteresis present (2mV).
• CMP402GSZ-REEL: 16-SOIC package with CMOS/TTL output. Similar to CMP401 series with slower propagation delay (75ns) and lower quiescent current (1.2mA, 1mA).

Substitution logic is based on matching the number of elements (4), output configuration capability, package footprint compatibility, and supply voltage range overlap. Package differences require PCB layout modifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Modification Required):

TLC339IDR is the primary substitute for TLC339ID. Both devices share identical electrical specifications, 14-SOIC package footprint, and CMOS open-drain output configuration. TLC339IDR holds Active product status with full ROHS3 compliance and MSL 1 rating, ensuring long-term availability and supply chain stability.

TS339IDT provides an alternative direct replacement with the same 14-SOIC package and open-drain output. This STMicroelectronics device offers superior performance characteristics including lower input bias current (1pA vs. 5pA), reduced quiescent current (25µA vs. 125µA), and extended operating temperature range (-40°C ~ 125°C). TS339IDT maintains Active product status with equivalent compliance certifications.

For Functional Substitution (PCB Layout Modification Required):

CMP401GSZ, CMP401GSZ-REEL, and CMP402GSZ-REEL are functional alternatives requiring PCB redesign due to 16-SOIC package format. These Analog Devices comparators feature CMOS/TTL output configuration and operate on ±5V supply voltage. CMP401 series devices deliver significantly faster propagation delay (30ns vs. 4.5µs) and improved input offset voltage (3mV vs. 5mV). CMP402GSZ-REEL offers lower quiescent current (1.2mA vs. 6mA) at the cost of slower propagation delay (75ns). All three maintain Active product status with full compliance certifications.

Selection between CMP401 and CMP402 variants depends on timing requirements: CMP401 for faster response, CMP402 for lower power consumption.

Frequently Asked Questions (FAQ)

Q: Can TLC339IDR be used as a direct drop-in replacement for TLC339ID?

A: Yes. TLC339IDR is electrically and mechanically identical to TLC339ID, differing only in packaging format (Tape & Reel vs. Tube) and product status (Active vs. Obsolete). No circuit modifications are required.

Q: What are the key differences between TS339IDT and TLC339ID?

A: TS339IDT maintains the same 14-SOIC package and open-drain output. Primary differences include lower input bias current (1pA vs. 5pA), reduced quiescent current (25µA vs. 125µA), and extended operating temperature range (-40°C ~ 125°C vs. -40°C ~ 85°C). Supply voltage range is slightly lower (2.7V minimum vs. 3V minimum).

Q: Why do CMP401 and CMP402 devices require PCB modification?

A: CMP401 and CMP402 series use 16-SOIC packages compared to the 14-SOIC package of TLC339ID. The additional pins and different pin spacing require PCB layout changes. Additionally, these devices feature CMOS/TTL output instead of open-drain output, necessitating circuit topology review.

Q: What is the supply voltage limitation for CMP401GSZ and CMP402GSZ-REEL?

A: Both devices operate on ±5V supply voltage, compared to TLC339ID's 3V ~ 16V range. Applications requiring single-supply operation above 5V or below 3V cannot use these substitutes without additional power supply circuitry.

Q: Which substitute offers the best performance for high-speed applications?

A: CMP401GSZ and CMP401GSZ-REEL provide the fastest propagation delay at 30ns, compared to 4.5µs for TLC339ID. However, these devices require ±5V supply and 16-SOIC package accommodation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TLC339IDR, TS339IDT, CMP401GSZ, CMP401GSZ-REEL, and CMP402GSZ-REEL all maintain ROHS3 compliance with MSL 1 rating and REACH unaffected status.

Q: What is the inventory status for substitute parts?

A: TLC339IDR: 2254 pcs; TS339IDT: 15753 pcs; CMP401GSZ: 2813 pcs; CMP401GSZ-REEL: 2700 pcs; CMP402GSZ-REEL: 19552 pcs. All are listed as new original stock.