Texas Instruments TMX320F28335PGFA

Overview

TMS320F28335PGFA from Texas Instruments is a high-performance 32-bit real-time microcontroller featuring a 150-MHz C28x CPU with IEEE 754 single-precision FPU, 256K × 16 flash, 34K × 16 SARAM, and 12-bit 16-channel ADC with 80-ns conversion time. It delivers deterministic control for motor drives, solar inverters, and industrial power electronics.

For engineers reviewing the TMS320F28335PGFA datasheet, TMS320F28335PGFA pinout, TMS320F28335PGFA application, or TMS320F28335PGFA equivalent, key selection factors include FPU-enabled closed-loop computation, 18 ePWM outputs with 150-ps HRPWM resolution, dual CAN interfaces, and LQFP-176 packaging for thermal and layout flexibility in high-reliability embedded control.

Technical Context

The TMS320F28335PGFA implements a Harvard bus architecture with unified memory programming model and fast interrupt response via 58-channel PIE block. Its 6-channel DMA supports concurrent transfers across ADC, ePWM, McBSP, XINTF, and SARAM - enabling real-time data movement without CPU overhead.

It integrates three 32-bit CPU timers, six eCAP modules (each supporting 32-bit capture or auxiliary PWM), two eQEP interfaces, and dual eCAN controllers compliant with ISO 11898-1. The on-chip oscillator, PLL, watchdog timer, and 128-bit security key provide system-level timing integrity and firmware protection.

Key Specifications

Pinout & Package

176-pin Low-Profile Quad Flatpack (LQFP) package with 0.5-mm pitch, 24.0 mm × 24.0 mm body size, and exposed thermal pad for enhanced heat dissipation in high-power control applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time control applications.

Compared with TMS320F28335PGFA, the TMS320F28377D offers scalable dual-core performance for advanced control, while the TMS320F280049C provides compact, cost-efficient execution of fixed-point power control - neither is pin-compatible, but both address adjacent segments in TI's C2000 portfolio.

Availability

TMS320F28335PGFA is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and electric vehicle on-board chargers requiring stable component supply and long-term manufacturing continuity.

Supply support for TMS320F28335PGFA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal processing technologies with over 90 years of innovation in industrial and automotive electronics.

The TMS320F28335PGFA belongs to TI's C2000™ real-time microcontroller product line, designed specifically for closed-loop control in power electronics, motor drives, and renewable energy systems where deterministic timing and analog integration are critical.

FAQ

What is the maximum operating frequency of the TMS320F28335PGFA?

The TMS320F28335PGFA operates at up to 150 MHz (6.67-ns cycle time) at 1.9-V core voltage. At 1.8-V core, it supports 100 MHz operation. This frequency enables sub-microsecond interrupt response and high-bandwidth control loop execution in demanding real-time applications such as servo drives and digital power converters.

Does the TMS320F28335PGFA include a floating-point unit?

Yes, the TMS320F28335PGFA integrates a hardware IEEE 754 single-precision floating-point unit (FPU). This FPU accelerates mathematical operations required for field-oriented control, sensor fusion, and adaptive filtering - eliminating reliance on software-emulated floating-point libraries and reducing CPU load in the TMS320F28335PGFA.

What package type and pin count does the TMS320F28335PGFA use?

The TMS320F28335PGFA uses a 176-pin Low-Profile Quad Flatpack (LQFP) package designated PGF, with 0.5-mm pitch and 24.0 mm × 24.0 mm body size. This package includes an exposed thermal pad and supports industrial temperature range (–40°C to 85°C), making it suitable for thermally constrained motor control and power conversion PCB layouts.

How many PWM outputs does the TMS320F28335PGFA support?

The TMS320F28335PGFA supports up to 18 ePWM outputs across six modules, plus six HRPWM channels with 150-ps minimum pulse-width resolution. These outputs are fully configurable for complementary, synchronized, or dead-time-inserted operation - essential for driving three-phase inverters, resonant converters, and multi-level topologies in the TMS320F28335PGFA.

Is the TMS320F28335PGFA pin-compatible with other F2833x devices?

Yes, the TMS320F28335PGFA shares identical pinout and package dimensions with other F2833x variants offered in the PGF (176-pin LQFP) package, including TMS320F28334PGF and TMS320F28333PGF. This allows direct substitution within the same footprint when adjusting flash size or peripheral configuration - provided firmware and hardware design accommodate functional differences in the TMS320F28335PGFA.