TLC339IN Equivalent & Substitute Parts

Part Overview

The TLC339IN is a general-purpose CMOS comparator IC with four independent comparators in a 14-DIP through-hole package, manufactured by Texas Instruments. This device operates across a wide supply voltage range of 3V to 16V and features open-drain outputs suitable for logic-level interfacing. The TLC339IN carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identifying equivalent substitute parts to maintain design continuity and ensure long-term component availability for new production runs and field replacements.

Substiute Parts

TLC339IN

Texas InstrumentsIn Stock: 1533TLC339IN Datasheet

Current PartRFQ

TLC339IDR

Texas InstrumentsIn Stock: 2317TLC339IDR 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

CMP401GSZ-REEL

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

MFR RecommendedRFQ

CMP402GRUZ-REEL

Analog Devices Inc.In Stock: 7555CMP402GRUZ-REEL Datasheet

MFR RecommendedRFQ

TS374CDT

STMicroelectronicsIn Stock: 10018TS374CDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC339IN are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Number of Elements: 4 independent comparators
• Type: General Purpose comparator function
• Output Type: CMOS and/or Open-Drain capability
• Voltage Supply Range: Minimum 3V to 16V compatibility
• Input Offset Voltage: Maximum 5mV specification
• Input Bias Current: Maximum 5pA specification
• Operating Temperature Range: Minimum -40°C to 85°C coverage
• RoHS3 Compliance: Environmental and regulatory alignment

Packaging Considerations: Substitutes are grouped by mounting technology (through-hole versus surface-mount) and package form factor. While the TLC339IN uses through-hole 14-DIP packaging, surface-mount alternatives (14-SOIC, 16-SOIC, 16-TSSOP) provide functional equivalence with different assembly requirements.

Manufacturer Diversity: Substitutes include parts from Texas Instruments, Analog Devices Inc., and STMicroelectronics, all meeting the specified electrical and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

TLC339IDR (Texas Instruments, 14-SOIC) This part maintains identical electrical specifications to the TLC339IN while transitioning from through-hole to surface-mount technology. It carries Active product status, ensuring continued availability and manufacturing support. Selection of TLC339IDR is appropriate for new designs or production runs where surface-mount assembly is feasible. ROHS3 compliance and MSL 1 rating support standard manufacturing environments.

CMP401GSZ and CMP401GSZ-REEL (Analog Devices Inc., 16-SOIC) These parts provide functional equivalence with improved electrical performance characteristics, including lower input offset voltage (3mV versus 5mV) and faster propagation delay (30ns versus 4.5µs). The extended operating temperature range to 125°C provides additional thermal margin. Active product status and ROHS3 compliance support long-term supply chain stability. The 16-pin package accommodates additional circuit integration compared to the 14-pin TLC339IN.

CMP401GRUZ-REEL (Analog Devices Inc., 16-TSSOP) This part offers the same electrical performance as CMP401GSZ with a more compact 16-TSSOP package form factor. Active product status and high inventory availability (4850 pcs) support immediate procurement. ROHS3 compliance and MSL 1 rating are maintained.

CMP402GRUZ-REEL (Analog Devices Inc., 16-TSSOP) This variant provides comparable functionality with slightly different quiescent current specifications (1.2mA, 1mA versus 6mA, 1mA) and extended propagation delay (75ns). Active product status and highest inventory availability (7480 pcs) among all substitutes support supply chain continuity. ROHS3 compliance is maintained.

TS374CDT (STMicroelectronics, 14-SOIC) This part maintains the 14-pin package footprint compatibility with the TLC339IN while offering surface-mount assembly. It provides the lowest input bias current (1pA) among all substitutes and supports the full voltage supply range of the TLC339IN (3V ~ 16V). However, the operating temperature range is limited to 0°C ~ 70°C, which may restrict use in extended temperature applications. Active product status and ROHS3 compliance are maintained.

Frequently Asked Questions (FAQ)

Q: Can TLC339IDR directly replace TLC339IN in existing through-hole designs? A: TLC339IDR provides identical electrical specifications but requires surface-mount assembly. Direct PCB replacement is not possible without redesigning the board layout and assembly process. For through-hole designs, TS374CDT offers a 14-pin surface-mount alternative with compatible voltage supply range.

Q: What are the key differences between TLC339IN and the Analog Devices CMP401 series? A: The CMP401 series (CMP401GSZ, CMP401GRUZ-REEL) offers improved electrical performance with lower input offset voltage (3mV versus 5mV) and significantly faster propagation delay (30ns versus 4.5µs). However, the CMP401 series operates on ±5V dual supply, whereas TLC339IN supports 3V ~ 16V single supply. Circuit redesign may be required to accommodate the different supply voltage requirements.

Q: Which substitute part has the best long-term availability? A: TLC339IDR (Texas Instruments) and CMP402GRUZ-REEL (Analog Devices Inc.) both carry Active product status with substantial inventory levels (2254 pcs and 7480 pcs respectively). Both manufacturers maintain established supply chains and support for these product lines.

Q: Is TS374CDT suitable for industrial temperature applications? A: TS374CDT operates within 0°C ~ 70°C, which covers commercial temperature ranges but does not extend to the full -40°C ~ 85°C range of TLC339IN. For industrial or extended temperature applications, TLC339IDR, CMP401GSZ, CMP401GRUZ-REEL, or CMP402GRUZ-REEL are more appropriate, as all support -40°C ~ 125°C operation.

Q: What packaging considerations apply when selecting a substitute? A: TLC339IN uses 14-DIP through-hole packaging. Surface-mount substitutes require PCB redesign and different assembly processes. TLC339IDR and TS374CDT maintain 14-pin compatibility, while CMP401 series parts use 16-pin packages. Pin-to-pin compatibility must be verified against specific circuit requirements before implementation.

Q: Are all substitute parts RoHS3 compliant? A: Yes, all listed substitute parts (TLC339IDR, CMP401GRUZ-REEL, CMP401GSZ, CMP401GSZ-REEL, CMP402GRUZ-REEL, TS374CDT) carry ROHS3 Compliant status and REACH Unaffected designation, meeting current environmental and regulatory requirements.