VC55GPSZHH Equivalent & Substitute Parts

Part Overview

The VC55GPSZHH is a fixed-point digital signal processor (DSP) from Texas Instruments' TMS320C55x series, designed for embedded applications requiring real-time signal processing. This 16-bit DSP integrates 256kB on-chip RAM and 64kB ROM, operating at 200MHz with dual voltage domains (1.60V core, 3.0V/3.3V I/O). The part is classified as obsolete, making identification of active equivalent components essential for ongoing production support and new design implementations.

Substiute Parts

VC55GPSZHH

Texas InstrumentsIn Stock: 852VC55GPSZHH Datasheet

Current PartRFQ

TMS320VC5509AZAY

Texas InstrumentsIn Stock: 50259TMS320VC5509AZAY Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VC55GPSZHH is determined by strict equivalence across the following critical parameters:

• Processor Architecture & Series: Both parts must belong to the TMS320C55x series to ensure instruction set compatibility and software portability.
• Clock Frequency: 200MHz operation is mandatory for timing-critical applications.
• Memory Configuration: 256kB on-chip RAM and 64kB ROM must be maintained to preserve application memory footprint.
• Voltage Specifications: Core voltage (1.60V) and I/O voltage (3.0V/3.3V) must match to ensure proper signal integrity and power delivery.
• Interface Protocols: Host Interface, I2C, and McBSP support must be present for system integration compatibility.
• Package Footprint: 179-LFBGA package ensures PCB layout compatibility and mechanical fit.
• Operating Temperature Range: -40°C ~ 85°C (TC) specification must be maintained for environmental compliance.
• Compliance Standards: RoHS3 compliance and REACH unaffected status ensure regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

The TMS320VC5509AZAY is a direct functional equivalent to the VC55GPSZHH across all specified electrical, mechanical, and interface parameters. The primary distinction is product lifecycle status: the VC55GPSZHH is obsolete, while the TMS320VC5509AZAY maintains active production status with significantly higher inventory availability (50,200 units versus 823 units).

For new designs and production continuity, the TMS320VC5509AZAY is the appropriate selection. Both parts maintain identical RoHS3 compliance and REACH unaffected status, ensuring regulatory requirements are met. The packaging difference (Tray versus unspecified for the main part) does not affect functional compatibility or PCB integration.

Frequently Asked Questions (FAQ)

Q: Can the TMS320VC5509AZAY directly replace the VC55GPSZHH in existing designs?

A: Yes. All critical parameters—processor architecture, clock frequency, memory configuration, voltage specifications, interface protocols, package footprint, and operating temperature range—are identical. No design modifications are required.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The VC55GPSZHH is no longer manufactured. The TMS320VC5509AZAY is in active production with reliable supply availability, making it the appropriate choice for ongoing production and new implementations.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory requirements are identical.

Q: Does the packaging format (Tray vs. unspecified) affect compatibility?

A: No. Packaging format refers to how components are supplied for assembly operations. The physical component, footprint, and electrical characteristics remain unchanged.

Q: What parameters must remain constant for substitution to be valid?

A: Clock rate (200MHz), memory configuration (256kB RAM, 64kB ROM), voltage specifications (1.60V core, 3.0V/3.3V I/O), interface support (Host Interface, I2C, McBSP), package type (179-LFBGA), and operating temperature range (-40°C ~ 85°C) must all match exactly.