TLC2558CPW Equivalent & Substitute Parts

Part Overview

The TLC2558CPW is a 12-bit Analog to Digital Converter (ADC) with Successive Approximation Register (SAR) architecture, featuring 7 or 8 pseudo-differential and single-ended inputs. This device operates at a 400 kHz sampling rate and communicates via SPI interface, making it suitable for multi-channel data acquisition applications requiring moderate resolution and speed.

The TLC2558CPW is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for legacy systems and new designs requiring compatible functionality.

Substiute Parts

TLC2558CPW

Texas InstrumentsIn Stock: 1108TLC2558CPW Datasheet

Current PartRFQ

TLC2558IPW

Texas InstrumentsIn Stock: 881TLC2558IPW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC2558CPW is determined by strict equivalence across the following critical parameters:

• Resolution: 12 bits
• Sampling Rate: 400 kHz
• Input Configuration: 7 or 8 channels with pseudo-differential and single-ended capability
• Data Interface: SPI protocol
• Architecture: SAR-based conversion
• Supply Voltages: 5V analog and digital
• Package: 20-TSSOP form factor
• Reference Configuration: External and internal reference support

The TLC2558IPW meets all these criteria and qualifies as a direct substitute. The primary distinction between the main part and substitute is product status and operating temperature range, which do not affect functional equivalence for component selection purposes.

Parameter Comparison

Engineering Selection Recommendations

The TLC2558IPW is the recommended substitute for the obsolete TLC2558CPW. Both devices are manufactured by Texas Instruments and maintain identical functional specifications across all critical parameters: 12-bit resolution, 400 kHz sampling rate, 7/8-channel input configuration, SPI interface, and 20-TSSOP packaging.

The TLC2558IPW offers an extended operating temperature range (-40°C to 85°C) compared to the TLC2558CPW (0°C to 70°C), providing greater flexibility for applications requiring operation across wider environmental conditions. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

The TLC2558IPW is currently in active production status, ensuring long-term availability and supply chain stability. This substitution requires no design modifications and provides direct pin-for-pin compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TLC2558IPW be used as a direct replacement for the TLC2558CPW?

A: Yes. The TLC2558IPW is functionally equivalent to the TLC2558CPW across all critical parameters: resolution, sampling rate, input configuration, data interface, supply voltages, and package type. No design modifications are required for substitution.

Q: What is the difference between the TLC2558CPW and TLC2558IPW?

A: The primary differences are product status and operating temperature range. The TLC2558CPW is obsolete with a 0°C to 70°C operating range, while the TLC2558IPW is active production with a -40°C to 85°C operating range. All functional specifications remain identical.

Q: Are there any package or pinout differences?

A: No. Both devices use the 20-TSSOP package with identical pinout and mechanical dimensions (0.173" width, 4.40mm). Surface mount compatibility is maintained.

Q: Does the extended temperature range of the TLC2558IPW affect performance?

A: The extended temperature range of the TLC2558IPW (-40°C to 85°C versus 0°C to 70°C) represents an expanded operational envelope. Applications operating within the original TLC2558CPW temperature range experience identical performance characteristics.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TLC2558CPW and TLC2558IPW are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.