TMS320F28068PZPS Equivalent & Substitute Parts

Part Overview

The TMS320F28068PZPS is a C28x C2000™ C28x Piccolo™ Microcontroller IC featuring 32-bit single-core architecture operating at 90MHz with 256KB FLASH memory. This device is classified as Obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The primary substitute maintains functional equivalence while offering improved product status and availability.

Substiute Parts

TMS320F28068PZPS

Texas InstrumentsIn Stock: 1139TMS320F28068PZPS Datasheet

Current PartRFQ

TMS320F28068FPZT

Texas InstrumentsIn Stock: 869TMS320F28068FPZT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320F28068PZPS is determined by strict equivalence across the following critical parameters:

• Core processor architecture (C28x)
• Core configuration (32-bit single-core)
• Operating frequency (90MHz)
• Memory configuration (256KB FLASH, 50K x 16 RAM)
• I/O count (54 pins)
• Peripheral feature set (CANbus, I2C, McBSP, SCI, SPI, UART/USART, DMA, PWM, WDT)
• Data converter specifications (A/D 16x12b)
• Supply voltage range (1.71V ~ 1.995V)
• Compliance certifications (ROHS3, REACH Unaffected)

The TMS320F28068FPZT qualifies as a direct substitute based on identical core functionality and electrical specifications. Package format differences (100-HTQFP versus 100-LQFP) represent the primary distinction between these devices.

Parameter Comparison

Engineering Selection Recommendations

The TMS320F28068FPZT is the qualified substitute for the obsolete TMS320F28068PZPS. Both devices maintain identical electrical specifications, core architecture, memory configuration, and peripheral feature sets. Selection between these parts is determined by the following factors:

Product Status: The TMS320F28068FPZT carries Active product status, ensuring ongoing manufacturer support, availability, and compliance maintenance. The TMS320F28068PZPS is Obsolete, limiting future sourcing options.

Compliance Certifications: Both devices maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for new designs and legacy system support.

Operating Temperature Range: The TMS320F28068PZPS supports -40°C to 125°C operation, while the TMS320F28068FPZT operates from -40°C to 105°C. Applications requiring operation above 105°C must retain the original part number.

Package Format: The primary physical difference is package type. The TMS320F28068PZPS uses 100-HTQFP format, while the TMS320F28068FPZT uses 100-LQFP format. Both are 14x14mm surface-mount packages with 100 pins. PCB layout compatibility must be verified for package-specific footprint requirements.

Frequently Asked Questions (FAQ)

Q: Can the TMS320F28068FPZT directly replace the TMS320F28068PZPS in existing designs?

A: Functional replacement is possible due to identical core specifications, memory configuration, and peripheral sets. However, package format differences (HTQFP versus LQFP) require PCB footprint verification. Consult device datasheets for pin-to-pin compatibility and thermal characteristics specific to each package type.

Q: What is the significance of the operating temperature range difference?

A: The TMS320F28068PZPS supports operation to 125°C, while the TMS320F28068FPZT operates to 105°C. Applications requiring sustained operation above 105°C must use the original part number. Standard industrial applications typically operate within the 105°C limit of the substitute.

Q: Why is the TMS320F28068PZPS classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The TMS320F28068FPZT provides functional continuity with Active product status, ensuring availability and ongoing compliance maintenance.

Q: Are there any electrical or functional differences between these parts?

A: No. Both devices share identical core processor architecture, clock speed, memory size and type, I/O count, connectivity options, peripheral features, data converter specifications, and supply voltage requirements. Differences are limited to package format and product lifecycle status.

Q: What packaging considerations apply to substitution?

A: The 100-HTQFP and 100-LQFP packages have different footprint geometries despite identical pin counts and 14x14mm dimensions. PCB design files must be updated to accommodate the substitute package type. Consult Texas Instruments package drawings for precise dimensional specifications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TMS320F28068PZPS and TMS320F28068FPZT maintain ROHS3 compliance and REACH Unaffected status, satisfying environmental and regulatory requirements for both new designs and legacy system support.