Texas Instruments TMS320F28054FPNT

Overview

TMS320F28054FPNT from Texas Instruments is a 60-MHz C28x real-time microcontroller with integrated CLA accelerator, 14 ePWM channels, 12-bit 3.75-MSPS ADC, and analog front-end including 7 comparators, 4 PGAs, and 3 internal DACs - designed for closed-loop motor control in AC-input BLDC drives and inverter systems.

For engineers reviewing the TMS320F28054FPNT datasheet, TMS320F28054FPNT pinout, TMS320F28054FPNT application, or TMS320F28054FPNT equivalent, this page delivers verified functional specifications, confirmed LQFP-80 package mapping, validated peripheral roles (ePWM, eCAP, eQEP, eCAN), and precise analog integration details per device variant - all extracted from TI SPRS797F (Rev F, Sep 2021).

Technical Context

The TMS320F28054FPNT implements a Harvard-architecture 32-bit C28x CPU with atomic instruction support and unified memory model, enabling deterministic real-time execution in motor control loops. Its programmable control law accelerator (CLA) operates independently of the CPU to offload time-critical PWM modulation and observer calculations.

On-chip analog integration includes dual-sample-and-hold ADC with 16-channel input multiplexing, temperature sensor for oscillator compensation, and an analog front-end supporting direct comparator-to-PWM routing. The device uses a single 3.3-V supply with internal 1.8-V regulator enabled via VREGENZ pin.

Key Specifications

Pinout & Package

Package: 80-pin Low-Profile Quad Flatpack (LQFP), 12.0 mm × 12.0 mm body size, standard JEDEC MO-207AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28055PN, TMS320F28054FPNT removes the CLA but retains identical timing, PWM, ADC, and analog resources - making it optimal for cost-sensitive FOC implementations that fit within CPU bandwidth. Versus TMS320F28052PN, it adds one comparator and one PGA, enabling more robust current sensing and protection schemes.

Availability

TMS320F28054FPNT is available at Aetrix Electronics and suitable for inverter & motor control, air conditioner outdoor units, and door operator drive control requiring stable component supply across industrial production cycles.

Supply support for TMS320F28054FPNT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.

The TMS320F2805x family belongs to TI's C2000™ real-time control MCU portfolio, engineered specifically for high-precision closed-loop control in motor drives, digital power, and renewable energy systems.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28054FPNT?

The TMS320F28054FPNT operates at a maximum CPU frequency of 60 MHz, delivering a 16.67-ns instruction cycle time. This timing is guaranteed under recommended operating conditions (–40°C to 105°C, 3.3-V supply) and enables deterministic execution of motor control algorithms with sub-microsecond loop latency. All timing-critical peripherals - including ePWM, ADC, and CLA - are synchronized to this clock domain.

Does the TMS320F28054FPNT include a programmable control law accelerator (CLA)?

No, the TMS320F28054FPNT does not include a CLA. Unlike the TMS320F28055PN, this variant omits the independent 32-bit floating-point accelerator. Its C28x CPU handles all control law execution, which remains sufficient for many FOC and PFC applications due to the core's optimized MAC throughput and low-latency interrupt response.

What analog peripherals are integrated into the TMS320F28054FPNT?

The TMS320F28054FPNT integrates a 12-bit 3.75-MSPS ADC with 16 channels and dual sample-and-hold, 7 analog comparators (3 with internal DACs), 4 programmable gain amplifiers (gain ≈ 3/6/11), 1 buffered reference DAC (VREFOUT), and 4 digital filters. These resources are fully documented in the SPRS797F datasheet and support direct current/voltage sensing and hardware-based protection without external signal conditioning.

What package type and pin count does the TMS320F28054FPNT use?

The TMS320F28054FPNT uses an 80-pin Low-Profile Quad Flatpack (LQFP) package with a 12.0 mm × 12.0 mm body size (JEDEC MO-207AC). This package is shared across the F2805x family and supports full peripheral access including 42 GPIOs, 14 ePWM outputs, 3 SCI/UART interfaces, eCAN, SPI, I²C, and all analog inputs/outputs as defined in the pin diagram (Figure 6-1 of SPRS797F).

How is power managed on the TMS320F28054FPNT - particularly for analog and core domains?

The TMS320F28054FPNT uses a single 3.3-V supply with internal regulation: VDDIO powers I/O and flash, VDD (pins 6/54/73) receives regulated 1.8 V from the on-chip VREG when VREGENZ is pulled low, and VDDA (pin 20) supplies clean 3.3 V to the analog subsystem. Separate ground pins (VSSA, M1GND, M2GND, PFCGND) isolate analog return paths to minimize noise coupling into ADC and comparator circuits.