TLC374CD Equivalent & Substitute Parts

Part Overview

The TLC374CD is a 4-channel differential comparator IC manufactured by Texas Instruments in 14-SOIC surface mount packaging. This LinCMOS™ series component operates across a wide supply voltage range (3V ~ 16V single supply, ±1.5V ~ 8V dual supply) and features CMOS, MOS, open-drain, and TTL output configurations. The TLC374CD is designated as Last Time Buy status, indicating production discontinuation. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and field replacements.

Substiute Parts

TLC374CD

Texas InstrumentsIn Stock: 1714TLC374CD Datasheet

Current PartRFQ

TLC374CDR

Texas InstrumentsIn Stock: 4297TLC374CDR Datasheet

MFR RecommendedRFQ

TS374CDT

STMicroelectronicsIn Stock: 10018TS374CDT Datasheet

DirectRFQ

TS339CDT

STMicroelectronicsIn Stock: 5517TS339CDT Datasheet

MFR RecommendedRFQ

TS339IDT

STMicroelectronicsIn Stock: 15817TS339IDT Datasheet

MFR RecommendedRFQ

TS374IDT

STMicroelectronicsIn Stock: 7898TS374IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC374CD is determined by strict alignment across the following critical parameters:

Primary Substitution Criteria:

• Comparator type: Differential configuration
• Number of channels: 4 elements
• Output type: CMOS, MOS, Open-Drain, TTL compatibility
• Package: 14-SOIC form factor
• Supply voltage range: Minimum 3V ~ 16V single supply capability
• Input offset voltage: Maximum 10mV @ 5V
• Input bias current: Maximum 1pA @ 5V
• Output current: Minimum 20mA typical
• Quiescent current: Maximum 250µA
• Operating temperature: Minimum 0°C ~ 70°C coverage
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Substitute Parts Identified:

Group 1 - Direct Texas Instruments Equivalent (Packaging Variant)

• TLC374CDR: Identical electrical specifications, alternative packaging (Cut Tape & Digi-Reel®), Active product status

Group 2 - STMicroelectronics Differential Comparators

• TS374CDT: Differential type, 4-channel, 14-SO package, Active status
• TS374IDT: Differential type, 4-channel, 14-SO package, extended temperature range (-40°C ~ 125°C), Active status

Group 3 - STMicroelectronics General Purpose Comparators

• TS339CDT: General Purpose type, 4-channel, 14-SO package, Active status
• TS339IDT: General Purpose type, 4-channel, 14-SO package, extended temperature range (-40°C ~ 125°C), Active status

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TLC374CDR

The TLC374CDR is the preferred substitute for the TLC374CD. Both parts are manufactured by Texas Instruments with identical electrical specifications and operating parameters. The TLC374CDR differs only in packaging format (Cut Tape & Digi-Reel® versus Tube) and maintains Active product status, ensuring long-term availability and supply chain stability. This substitution requires no circuit redesign and maintains full compatibility with existing PCB layouts and assembly processes.

Secondary Recommendations: TS374CDT and TS374IDT

The STMicroelectronics TS374 series provides differential comparator functionality equivalent to the TLC374CD. Both TS374CDT and TS374IDT maintain the 4-channel differential configuration, identical supply voltage range, and 14-SO package compatibility. The TS374IDT offers extended operating temperature range (-40°C ~ 125°C) compared to the standard 0°C ~ 70°C specification. Both parts carry Active product status and ROHS3 compliance. The TS374 series exhibits lower quiescent current (250µA maximum versus 800µA) and improved input bias current performance (1pA versus 5pA), representing enhanced power efficiency characteristics.

Alternative Consideration: TS339CDT and TS339IDT

The STMicroelectronics TS339 series provides general-purpose comparator functionality with 4-channel configuration and 14-SO package compatibility. These parts support a marginally lower minimum supply voltage (2.7V versus 3V) and demonstrate significantly reduced quiescent current (25µA maximum). The TS339 series is classified as general-purpose rather than differential type. The TS339IDT offers extended operating temperature range (-40°C ~ 125°C). Both parts maintain Active product status and ROHS3 compliance. Selection of TS339 variants requires circuit-level evaluation to confirm compatibility with differential input stage requirements.

Frequently Asked Questions (FAQ)

Q: Can TLC374CDR be used as a direct replacement for TLC374CD?

A: Yes. The TLC374CDR is manufactured by Texas Instruments with identical electrical specifications, supply voltage range, input/output characteristics, and operating temperature range as the TLC374CD. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube). No circuit modifications are required. The TLC374CDR maintains Active product status, ensuring continued availability.

Q: What is the difference between the TLC374CD and TS374CDT?

A: Both are 4-channel differential comparators in 14-SOIC/14-SO packages with identical supply voltage ranges and output current specifications. The TS374CDT is manufactured by STMicroelectronics and exhibits lower quiescent current (250µA versus 800µA) and superior input bias current performance (1pA versus 5pA). The TS374CDT operates across the standard 0°C ~ 70°C temperature range. Both maintain ROHS3 compliance and Active product status.

Q: Should I select TS374IDT over TS374CDT?

A: Selection between TS374CDT and TS374IDT depends on operating temperature requirements. The TS374IDT extends the operating temperature range to -40°C ~ 125°C, suitable for industrial and automotive applications. The TS374CDT maintains the standard 0°C ~ 70°C range. Both parts are otherwise electrically identical. Choose TS374IDT if your application requires extended temperature operation; otherwise, TS374CDT is sufficient.

Q: Are TS339CDT and TS339IDT suitable replacements for TLC374CD?

A: The TS339 series provides 4-channel comparator functionality in compatible 14-SO packaging with Active product status and ROHS3 compliance. However, the TS339 is classified as general-purpose comparator rather than differential type. The TS339 series exhibits significantly lower quiescent current (25µA) and supports marginally lower minimum supply voltage (2.7V). Circuit-level evaluation is required to confirm compatibility with differential input stage requirements before substitution.

Q: What packaging formats are available for these substitute parts?

A: TLC374CDR is available in Cut Tape & Digi-Reel® packaging. TS374CDT, TS374IDT, TS339CDT, and TS339IDT are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. All parts maintain 14-SOIC/14-SO surface mount package specifications with 0.154" (3.90mm) width. Verify packaging availability with your component supplier based on production volume and assembly requirements.

Q: Do all substitute parts meet RoHS and MSL requirements?

A: Yes. All substitute parts listed (TLC374CDR, TS374CDT, TS374IDT, TS339CDT, TS339IDT) are ROHS3 Compliant with MSL rating of 1 (Unlimited), matching the TLC374CD specifications. All parts meet current environmental and moisture sensitivity standards for surface mount assembly.