Is there a pin-compatible replacement for TMS320F28335PGFA?

No, there are no known pin-compatible replacements for the TMS320F28335PGFA. Even though some microcontrollers exist in the same 176-LQFP package, their pin functions are different, necessitating a PCB redesign.

What risks should I check before replacing TMS320F28335PGFA?

Before replacing TMS320F28335PGFA, you must check for firmware, hardware, and electrical risks. The biggest risk is firmware, as changing the core architecture requires a complete software rewrite. You must also verify the pinout is not compatible and will require a new PCB layout, and re-validate all electrical parameters like voltage, current, and peripheral behavior.

TMS320F28335PGFA Alternatives, Datasheet & Cross Reference | Texas Instruments

TMS320F28335PGFA is a 32-bit C28x microcontroller from Texas Instruments in a 176-LQFP package. While no direct pin-compatible replacements are available, an official upgrade path to the TMS320F2837x series exists, and other functional alternatives can be considered with a ful...

AI replacement insight

Firmware riskhigh

Switching from TI C28x core requires a complete code rewrite and new development tools.

Package riskhigh

While some alternatives share the LQFP-176 package, pinouts are not compatible, requiring a new PCB layout.

Electrical riskmedium

Voltage levels, I/O characteristics, and peripheral performance must be re-evaluated for any alternative.

Can it be replaced directly?

No, there are no known direct pin-for-pin replacements for the TMS320F28335PGFA. All alternatives require hardware and significant firmware changes.

Best replacement path

The recommended upgrade path is to migrate to the Texas Instruments TMS320F2837xS/D series, which offers higher performance and is designed as a successor to the F2833x family.

Main risk

The primary risk is firmware incompatibility. The target uses a TI C28x core, and all non-TI alternatives use different architectures, requiring a complete software rewrite and toolchain change.

Recommended alternatives

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Alternative comparison matrix

Feature / factor	TMS320F28335PGFA	R5F571MJGGFC#V0	R5F564MFGDFC#31	R7F7015973AFP-C#AA3	Compatibility / risk
Package	176-LQFP	176-LQFP	176-LQFP	176-LQFP	176-LQFP — Package matches, enabling potential form-fit compatibility.; R5F564MFGDFC#31: Package matches, enabling potential form-fit compatibility.; R7F7015973AFP-C#AA3: Package matches, enabling potential form-fit compatibility.
Core	C28x	RXv2	RXv2	RH850G3KH	RXv2 / RH850G3KH — Different core architecture requires complete firmware rewrite.; R5F564MFGDFC#31: Different core architecture requires complete firmware rewrite.; R7F7015973AFP-C#AA3: Different core architecture requires complete firmware rewrite.
Speed	150 MHz	240MHz	120MHz	120MHz	240MHz / 120MHz — Faster clock speed offers potential performance upgrade.; R5F564MFGDFC#31: Slower clock speed may impact performance.; R7F7015973AFP-C#AA3: Slower clock speed may impact performance.
Lifecycle	Active	Active	Active	Active	Active — Both parts are active.; R5F564MFGDFC#31: Both parts are active.; R7F7015973AFP-C#AA3: Both parts are active.

Application & sourcing insights

Questions & answers

The best alternative is to migrate to a newer device in the same family from Texas Instruments, such as the TMS320F2837xS or TMS320F2837xD series. These are official upgrade paths offering more performance while maintaining some toolchain and architectural familiarity.