TMS320F28335PGFA

Overview

The TMS320F28335PGFA is a C2000™ real-time microcontroller featuring a 176-pin LQFP package. It integrates a 32-bit C28x CPU operating at up to 150 MHz with an IEEE 754 single-precision floating-point unit (FPU). The device includes 256K x 16 flash memory, 34K x 16 SARAM, and 1K x 16 OTP ROM. Key peripherals comprise a 12-bit ADC with 16 channels, six ePWM outputs with HRPWM capability, two eQEP interfaces, and multiple serial communication modules including CAN, SCI, SPI, and I2C.

Feature Summary

• Integrates a high-performance 32-bit C28x DSP core with hardware-accelerated single-precision floating-point operations for complex control algorithms.
• Provides enhanced pulse-width modulation (ePWM) with megapulse engine (MEP) resolution for precise motor drive timing.
• Includes a 12-bit analog-to-digital converter with dual sample-and-hold circuits for simultaneous multi-channel signal acquisition.
• Features integrated code security mechanisms with 128-bit keys to protect firmware integrity against reverse engineering.

Applications

• Industrial motor drives and servo control systems
• Solar inverters and digital power conversion
• Hybrid and electric vehicle powertrain management
• Advanced driver assistance system (ADAS) radar processing

Procurement Notes

Verify the specific suffix PGFA corresponds to the 176-pin Low-Profile Quad Flatpack (LQFP) package variant. Confirm the temperature grade matches application requirements, as this suffix typically indicates the commercial range (-40°C to 85°C). Ensure compatibility with existing PCB footprints designed for the PGF package type before finalizing procurement orders.

Selection Notes

Select this component when single-chip integration of floating-point processing and high-resolution PWM generation is required. It is suitable for applications needing simultaneous analog sampling and deterministic digital control loops. Consider alternative F2833x variants if different memory capacities or pin counts are necessary for the specific design constraints.

Part Context

This device belongs to the Texas Instruments C2000™ Delfino™ family of real-time microcontrollers. It represents a generation of controllers optimized for closed-loop performance in demanding control applications. The F28335 serves as a foundational platform for developing sophisticated digital control solutions across industrial, automotive, and renewable energy sectors.

Replacement Considerations

Direct pin-compatible replacements within the same package include other F2833x series devices such as the TMS320F28334 or TMS320F28333, provided memory and clock speed differences are acceptable. For upgraded performance, migration to the TMS320F2837xD series requires significant architectural changes due to dual-core capabilities and different peripheral sets.