Texas Instruments TMX320F28069UPFPA

Overview

TMS320F28069UPFPA from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and VCU, delivering deterministic floating-point control for motor drives and digital power. It features 128KB flash, 50KB RAM, 16-channel 12-bit ADC (3.46 MSPS), 8 HRPWM channels, and eCAN/USB/SCI/SPI/I²C interfaces - deployed in solar inverters, EV charging modules, and servo drive control.

For engineers reviewing the TMS320F28069UPFPA datasheet, TMS320F28069UPFPA pinout, TMS320F28069UPFPA application, or TMS320F28069UPFPA equivalent, key selection criteria include CLA-accelerated closed-loop timing, dual-edge HRPWM capability, on-chip temperature sensing, 54 GPIO with input filtering, and AEC-Q100-qualified variants for automotive traction inverters.

Technical Context

The TMS320F28069UPFPA implements a Harvard-architecture C28x CPU with atomic instruction execution and unified memory mapping, enabling deterministic real-time interrupt response under 6-cycle latency. Its dedicated CLA executes floating-point control law code independently of the main CPU, while the VCU extends instruction set support for complex math, CRC, and Viterbi operations - critical for field-oriented control (FOC) and predictive current regulation.

Peripheral integration includes eight ePWM modules (16 total outputs, 8 HRPWM-capable), three eCAP inputs, four HRCAP modules, two eQEP interfaces, and a dual-sample-and-hold 12-bit ADC with ratio-metric reference support. Clocking uses dual zero-pin oscillators plus PLL, with missing-clock detection and watchdog timer for system robustness.

Key Specifications

Pinout & Package

Package: 80-pin HTQFP (PFP), 12.0 mm × 12.0 mm, PowerPAD™ thermally enhanced. The exposed thermal pad must be soldered to PCB ground plane with thermal vias for effective heat dissipation; it is not electrically connected to internal VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28069UPFPA, the TMS320F280049C delivers higher ADC resolution and configurable logic for adaptive control, while the TMS320F28069M trades USB connectivity for embedded motion firmware - making the TMS320F28069UPFPA optimal for USB-enabled field service and multi-topology digital power designs.

Availability

TMS320F28069UPFPA is available at Aetrix Electronics and suitable for solar inverter manufacturing, EV charging station production, and industrial servo drive development requiring stable component supply and long-term lifecycle assurance.

Supply support for TMS320F28069UPFPA 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 wireless technologies, with over 90 years of innovation in industrial and automotive electronics.

The TMS320F28069UPFPA belongs to TI's C2000™ real-time MCU product line, engineered specifically for deterministic closed-loop control in motor drives, digital power, and renewable energy systems - emphasizing low-latency signal processing, high-resolution actuation, and system-level reliability.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28069UPFPA?

The TMS320F28069UPFPA operates at a maximum CPU frequency of 90 MHz, yielding an instruction cycle time of 11.11 ns. This timing is guaranteed across the full –40°C to 105°C temperature range and 3.3-V supply, enabling deterministic execution of real-time control loops with sub-microsecond latency - essential for high-bandwidth current regulation in SiC-based motor drives.

Does the TMS320F28069UPFPA include hardware security features for firmware protection?

Yes, the TMS320F28069UPFPA integrates a 128-bit password-protected Code Security Module (CSM) and 1KB of One-Time Programmable (OTP) ROM. These features prevent unauthorized read-out of flash and RAM contents, block debugger access to secure memory blocks, and inhibit reverse-engineering of proprietary control algorithms - meeting industrial IP protection requirements.

How many high-resolution PWM (HRPWM) channels does the TMS320F28069UPFPA support, and what is their timing resolution?

The TMS320F28069UPFPA supports 8 HRPWM channels, each capable of 150-ps resolution and dual-edge modulation. This enables precise dead-time insertion, soft-switching control in LLC and phase-shifted converters, and accurate gate driving for wide-bandgap devices - verified in TI's F2806x technical reference manual and device-specific datasheet sections.

Is USB functionality available on the TMS320F28069UPFPA, and what modes does it support?

Yes, the TMS320F28069UPFPA includes a full-speed USB 2.0 interface supporting both device mode (for firmware updates and PC communication) and full-speed/low-speed host mode (for connecting USB peripherals like HID controllers or flash storage). This capability is confirmed in the Device Comparison table (Table 5-1) and Section 3.2 of the SPRS698J datasheet.

What analog-to-digital converter (ADC) performance specifications apply to the TMS320F28069UPFPA?

The TMS320F28069UPFPA integrates a 12-bit dual sample-and-hold ADC with up to 16 input channels, 3.46 MSPS throughput, and 289 ns conversion time. It supports ratio-metric reference operation using VREFHI/VREFLO and is DMA-accessible - enabling synchronized sampling of multiple current/voltage sensors in real-time motor control applications.