Texas Instruments TMS320F28069PFPS

Overview

TMS320F28069PFPS from Texas Instruments is a 90-MHz C28x-core real-time microcontroller with integrated FPU, CLA, and 12-bit 3.46-MSPS ADC, designed for closed-loop motor control and digital power conversion in industrial inverters and EV charging modules.

For engineers reviewing the TMS320F28069PFPS datasheet, TMS320F28069PFPS pinout, TMS320F28069PFPS application, or TMS320F28069PFPS equivalent, key selection criteria include HRPWM dual-edge modulation capability, on-chip temperature sensor, 54 GPIO with input filtering, eCAN interface, and 128KB flash/50KB RAM memory configuration.

Technical Context

The TMS320F28069PFPS implements a Harvard-architecture C28x CPU with atomic instructions and unified memory model, paired with an independent 32-bit floating-point CLA for real-time control law execution. Its VCU extends instruction set for complex math, CRC, and Viterbi operations.

It integrates eight ePWM modules (16 channels, 8 HRPWM-capable), three eCAP, four HRCAP, two eQEP, and a dual-sample-and-hold 12-bit ADC with ratio-metric reference support - all synchronized via a centralized PIE interrupt controller and DMA-driven peripheral access.

Key Specifications

Pinout & Package

The TMS320F28069PFPS uses an 80-pin thermally enhanced HTQFP (PowerPAD™) package. The exposed thermal pad must be soldered to PCB ground plane via 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 TMS320F28069PFPS, the TMS320F280049C offers higher processing headroom and analog fidelity but requires layout revision, while the TMS320F28069M retains mechanical compatibility but sacrifices VCU and half the flash-making TMS320F28069PFPS optimal for cost-sensitive, VCU-dependent industrial power applications.

Availability

TMS320F28069PFPS is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and EV on-board chargers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TMS320F28069PFPS 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 company delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The TMS320F28069PFPS belongs to TI's C2000™ real-time MCU product line, engineered specifically for deterministic control of power electronics, motor drives, and energy conversion systems where sub-microsecond timing and analog integration are critical.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28069PFPS?

The TMS320F28069PFPS operates at a maximum CPU frequency of 90 MHz, yielding an instruction cycle time of 11.11 ns. This timing applies to all C28x core instructions, including MAC, FPU, and CLA-executed operations, and is validated across the full –40°C to 125°C temperature range for the S-grade device.

Does the TMS320F28069PFPS support hardware-accelerated motor control algorithms?

Yes, the TMS320F28069PFPS includes a dedicated Programmable Control Law Accelerator (CLA) that executes floating-point control code independently of the main C28x CPU. It supports real-time FOC, SVM, and PID loop execution with deterministic latency, and is accessible via DMA for synchronized ADC/PWM data transfer.

What analog peripherals are integrated into the TMS320F28069PFPS?

The TMS320F28069PFPS integrates a 12-bit, 3.46-MSPS ADC with dual sample-and-hold, three analog comparators with 10-bit internal references, an on-chip temperature sensor, and six analog input pins (AIO0–AIO5) routed to comparator and ADC inputs - all usable without external signal conditioning.

Is the TMS320F28069PFPS pin-compatible with other F2806x family members?

Yes, the TMS320F28069PFPS shares identical 80-pin PFP package pinout with TMS320F28069PFP and TMS320F28069PN variants. Signal mapping, power/ground pin locations, and peripheral pin multiplexing are fully consistent across these 80-pin versions, enabling direct PCB reuse.

What security features does the TMS320F28069PFPS provide for firmware protection?

The TMS320F28069PFPS implements a Code Security Module (CSM) with 128-bit password protection, OTP memory for key storage, and lockable flash/SARAM sectors. Once secured, debug access is disabled and memory reads return zero - preventing firmware extraction or unauthorized reprogramming in deployed systems.