TLC254BCD Equivalent & Substitute Parts

Part Overview

The TLC254BCD is a CMOS 4-circuit operational amplifier manufactured by Texas Instruments in a 14-SOIC surface mount package. This device features open drain output configuration and is designed for low-power linear amplification applications. The TLC254BCD carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number. Equivalent and substitute parts are necessary to maintain design continuity and ensure long-term component availability for new production and legacy system support.

Substiute Parts

TLC254BCD

Texas InstrumentsIn Stock: 1074TLC254BCD Datasheet

Current PartRFQ

TLV9154IDR

Texas InstrumentsIn Stock: 15932TLV9154IDR Datasheet

MFR RecommendedRFQ

TS274ACDT

STMicroelectronicsIn Stock: 45299TS274ACDT Datasheet

MFR RecommendedRFQ

TS274AIDT

STMicroelectronicsIn Stock: 2149TS274AIDT Datasheet

MFR RecommendedRFQ

TS274CDT

STMicroelectronicsIn Stock: 30113TS274CDT Datasheet

MFR RecommendedRFQ

TS274IDT

STMicroelectronicsIn Stock: 10561TS274IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC254BCD is determined by the following critical parameters:

Primary Substitution Criteria:

• Package compatibility: 14-SOIC surface mount form factor
• Circuit count: 4 independent amplifier circuits
• Amplifier technology: CMOS architecture
• Supply voltage range: Minimum 1.4 V to maximum 16 V overlap
• Operating temperature range: 0°C to 70°C minimum requirement
• RoHS3 compliance and MSL 1 rating

Substitution Logic:

Substitute parts are grouped into two categories based on functional compatibility:

Category 1: Direct CMOS Amplifier Substitutes (TS274 Series) The TS274CDT, TS274ACDT, TS274AIDT, and TS274IDT from STMicroelectronics maintain CMOS amplifier architecture with 4 circuits in 14-SOIC packaging. These parts share identical slew rate (5.5 V/µs), gain bandwidth product (3.5 MHz), and supply voltage range specifications. Operating temperature variants (0°C to 70°C or -40°C to 125°C) are available. All TS274 variants meet RoHS3 compliance and MSL 1 requirements.

Category 2: General Purpose Rail-to-Rail Substitute (TLV9154IDR) The TLV9154IDR from Texas Instruments provides 4-circuit amplification in 14-SOIC packaging with rail-to-rail output configuration. This part operates across the required supply voltage range (2.7 V to 16 V) and extended temperature range (-40°C to 125°C). The TLV9154IDR is classified as Active product status with higher slew rate (20 V/µs) and gain bandwidth product (4.5 MHz), offering enhanced performance characteristics while maintaining package and circuit count compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement in 0°C to 70°C Operating Range:

The TS274CDT and TS274ACDT are suitable direct replacements for the TLC254BCD when operating temperature requirements remain within 0°C to 70°C. Both parts maintain CMOS amplifier architecture, 4-circuit configuration, and 14-SOIC packaging. The TS274CDT is available in Cut Tape & Digi-Reel packaging with 30,100 units in stock. The TS274ACDT is available in Cut Tape packaging with 45,200 units in stock. Both parts carry Active product status and ROHS3 compliance.

For Extended Temperature Range Applications (-40°C to 125°C):

The TS274AIDT and TS274IDT extend the operating temperature range to -40°C to 125°C while maintaining CMOS architecture and 4-circuit configuration. The TS274AIDT is available in Cut Tape & Digi-Reel packaging with 2,098 units in stock. The TS274IDT is available in Tape & Reel packaging with 10,534 units in stock. Both parts carry Active product status and ROHS3 compliance.

For Enhanced Performance with Rail-to-Rail Output:

The TLV9154IDR from Texas Instruments provides superior performance characteristics with 20 V/µs slew rate and 4.5 MHz gain bandwidth product compared to the TLC254BCD specifications. This part operates across 2.7 V to 16 V supply range and -40°C to 125°C temperature range. The TLV9154IDR is available in Cut Tape & Digi-Reel packaging with 15,896 units in stock and carries Active product status with ROHS3 compliance. The TLV9154IDR output type is rail-to-rail rather than open drain, requiring circuit topology evaluation for compatibility.

Compliance and Availability Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes. The TS274 series from STMicroelectronics offers the highest combined inventory availability (87,932 units across all variants). The TLV9154IDR provides the most extensive temperature range coverage and highest performance metrics while maintaining Texas Instruments manufacturer continuity.

Frequently Asked Questions (FAQ)

Q: Can the TS274CDT directly replace the TLC254BCD in all applications?

A: The TS274CDT is compatible for applications operating within 0°C to 70°C temperature range. Both parts use CMOS amplifier architecture, contain 4 circuits, and are packaged in 14-SOIC form factor. The TS274CDT operates across 3 V to 16 V supply range, which overlaps with the TLC254BCD range of 1.4 V to 16 V. Applications requiring supply voltages below 3 V require evaluation of alternative substitutes.

Q: What is the difference between TS274ACDT and TS274AIDT?

A: Both parts are STMicroelectronics TS274 CMOS amplifiers in 14-SOIC packaging with identical electrical specifications. The primary difference is operating temperature range: TS274ACDT operates 0°C to 70°C, while TS274AIDT operates -40°C to 125°C. Packaging format differs: TS274ACDT is supplied in Cut Tape, while TS274AIDT is supplied in Cut Tape & Digi-Reel.

Q: Why is the TLV9154IDR listed as a substitute if it has rail-to-rail output instead of open drain?

A: The TLV9154IDR is functionally compatible for applications where open drain output is not a circuit requirement. The rail-to-rail output configuration provides enhanced output swing capability and is suitable for many general-purpose amplification circuits. Applications specifically requiring open drain output characteristics must use TS274 series substitutes.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TS274CDT, TS274ACDT, TS274AIDT, TS274IDT, and TLV9154IDR) carry ROHS3 compliance certification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level, matching the TLC254BCD specifications.

Q: What is the minimum supply voltage for each substitute part?

A: The TS274 series (TS274CDT, TS274ACDT, TS274AIDT, TS274IDT) requires minimum 3 V supply voltage. The TLV9154IDR requires minimum 2.7 V supply voltage. The TLC254BCD operates at minimum 1.4 V. Applications requiring supply voltages below 2.7 V cannot use any listed substitutes.

Q: Which substitute part has the highest inventory availability?

A: The TS274ACDT has the highest single-part inventory with 45,200 units in stock. Combined TS274 series inventory across all variants totals 87,932 units. The TLV9154IDR has 15,896 units in stock.

Q: Can I use TS274IDT in place of TS274CDT?

A: Yes, with temperature range considerations. Both parts are STMicroelectronics TS274 CMOS amplifiers with identical electrical specifications and 14-SOIC packaging. The TS274IDT extends operating temperature to -40°C to 125°C compared to TS274CDT at 0°C to 70°C. The TS274IDT is suitable for all applications where TS274CDT is used, plus applications requiring extended temperature range.

Q: What packaging options are available for substitute parts?

A: TS274CDT is available in Cut Tape & Digi-Reel. TS274ACDT is available in Cut Tape. TS274AIDT is available in Cut Tape & Digi-Reel. TS274IDT is available in Tape & Reel. TLV9154IDR is available in Cut Tape & Digi-Reel. The original TLC254BCD was supplied in Tube packaging.