TMS320VC5505ZCH Equivalent & Substitute Parts

Part Overview

The TMS320VC5505ZCH is a fixed-point digital signal processor (DSP) from Texas Instruments' TMS320C55x series, housed in a 196-pin NFBGA package. This embedded integrated circuit is designed for applications requiring real-time signal processing with support for multiple communication interfaces including I2C, I2S, SPI, UART, and USB. The device operates at 100MHz with 320kB on-chip RAM and 128kB ROM, making it suitable for audio, telecommunications, and industrial control applications.

The TMS320VC5505ZCH carries a "Not For New Designs" product status, indicating that Texas Instruments has transitioned this component to end-of-life or legacy support. For ongoing production and new development projects, identifying compatible substitute parts is essential to ensure design continuity and long-term supply chain reliability.

Substiute Parts

TMS320VC5505ZCH

Texas InstrumentsIn Stock: 910TMS320VC5505ZCH Datasheet

Current PartRFQ

TMS320C5505AZCH10

Texas InstrumentsIn Stock: 66118TMS320C5505AZCH10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320VC5505ZCH is determined by strict alignment across the following critical parameters:

Core Compatibility Criteria:

• Same base product family (TMS320C55x series)
• Identical package type (196-LFBGA / 196-NFBGA 10x10)
• Matching clock frequency (100MHz)
• Equivalent memory configuration (320kB on-chip RAM, 128kB ROM)
• Compatible voltage specifications (core and I/O rails)
• Same mounting technology (Surface Mount BGA)

Compliance & Certification Alignment:

• RoHS3 compliance status
• Moisture Sensitivity Level (MSL 3)
• REACH and ECCN classifications

The TMS320C5505AZCH10 qualifies as a direct substitute based on these parameters. Both devices share identical core architecture, memory capacity, clock speed, and physical packaging. The substitute part maintains full electrical and mechanical compatibility while offering an active product status with extended temperature range support.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Maintenance: The TMS320VC5505ZCH remains suitable for sustaining engineering and repair applications where existing inventory is available. However, the "Not For New Designs" status indicates limited long-term support from Texas Instruments.

For New Development and Production: The TMS320C5505AZCH10 is the recommended selection. This substitute part carries an "Active" product status, ensuring ongoing manufacturer support, availability, and compliance updates. The extended operating temperature range (-10°C to 70°C versus 0°C to 70°C) provides additional thermal margin for demanding environments. The substitute also supports expanded interface options (EBI/EMI, MMC/SD) and dual core voltage capability (1.05V and 1.30V), offering greater design flexibility.

Both parts maintain identical RoHS3 compliance, MSL ratings, and REACH status, ensuring regulatory alignment across supply chain transitions.

Frequently Asked Questions (FAQ)

Q: Can the TMS320C5505AZCH10 be used as a direct replacement for the TMS320VC5505ZCH in existing designs?

A: Yes. Both devices share identical package geometry (196-LFBGA), pinout, clock frequency (100MHz), memory configuration (320kB RAM, 128kB ROM), and core voltage specification (1.30V). PCB layout and firmware compatibility are maintained without modification.

Q: What are the key differences between these two parts?

A: The primary differences are product status and operating temperature range. The TMS320C5505AZCH10 is an active product with extended temperature support (-10°C to 70°C) compared to the legacy part (0°C to 70°C). The substitute also supports additional interfaces (EBI/EMI, MMC/SD) and offers dual core voltage options (1.05V or 1.30V).

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry MSL 3 ratings, and share identical REACH and ECCN classifications. Regulatory requirements are fully aligned.

Q: Why does the substitute support additional interfaces?

A: The TMS320C5505AZCH10 represents an enhanced variant within the same product family. The additional interface support (EBI/EMI, MMC/SD) does not affect compatibility with designs using only the core interfaces (I2C, I2S, SPI, UART, USB). Unused interfaces remain inactive in applications that do not require them.

Q: Is the substitute part available in the same packaging format?

A: Yes. Both parts use the 196-NFBGA (10x10) package with 196-LFBGA case designation. Physical dimensions, ball pitch, and mounting requirements are identical.

Q: What is the inventory status for the substitute part?

A: The TMS320C5505AZCH10 has significantly higher availability (66,080 pieces in stock) compared to the legacy part (866 pieces), reflecting its active product status and ongoing production.