Texas Instruments TMS320F28027PTS

Overview

TMS320F28027PTS from Texas Instruments is a 32-bit C28x real-time microcontroller optimized for motor control and digital power applications, operating at 60 MHz (16.67-ns cycle time), featuring 32 KB on-chip Flash, 6 KB SARAM, 8 KB Boot ROM, and integrated high-resolution ePWM (4 channels), 12-bit ADC (7-channel, 3 MSPS), and dual analog comparators with internal 10-bit references - deployed in industrial AC-DC converters and BLDC motor drives.

For engineers reviewing the TMS320F28027PTS datasheet, TMS320F28027PTS pinout, TMS320F28027PTS application, or TMS320F28027PTS equivalent, key selection considerations include its 48-pin LQFP package, single 3.3-V supply operation, code compatibility with prior C28x devices, and support for InstaSPIN-FOC™-ready firmware deployment in cost-sensitive embedded control systems.

Technical Context

The TMS320F28027PTS implements a Harvard bus architecture with atomic instruction execution and unified memory programming model, enabling deterministic real-time interrupt response. Its CPU timer subsystem includes three independent 32-bit timers, while the enhanced PWM subsystem delivers dual-edge modulation via four HRPWM-capable ePWM modules.

Peripheral integration centers on closed-loop control: the 12-bit ADC supports ratio-metric VREFHI/VREFLO referencing and low-latency conversion (216.67 ns), and analog comparators route directly to PWM trip zones (TZ1–TZ3) for hardware-based fault protection - all coordinated through the Peripheral Interrupt Expansion (PIE) block supporting full peripheral interrupt mapping.

Key Specifications

Pinout & Package

Package: 48-pin Low-Profile Quad Flatpack (LQFP), 7.0 mm × 7.0 mm body size, exposed thermal pad (not electrically connected), RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28027PT and TMS320F28026PT, the TMS320F28027PTS provides guaranteed operation up to 125°C, full HRPWM capability for precision power stage control, and larger Flash for complex control algorithms - making it the optimal choice for thermally demanding industrial and automotive auxiliary power modules.

Availability

TMS320F28027PTS is available at Aetrix Electronics and suitable for industrial motor drives, solar microinverters, and three-phase UPS systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TMS320F28027PTS 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 since 1930.

The TMS320F28027PTS belongs to TI's C2000™ real-time microcontroller portfolio, designed specifically for closed-loop control in power electronics - emphasizing deterministic timing, analog integration, and motor control acceleration features.

FAQ

What is the maximum operating frequency of the TMS320F28027PTS?

The TMS320F28027PTS operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This frequency is achieved using the internal PLL with either the on-chip zero-pin oscillator or an external crystal/resonator on X1/X2. The device maintains full peripheral functionality-including ADC sampling, ePWM updates, and interrupt servicing-at this speed, as verified in TI's SPRS523P datasheet Section 8.13.

Does the TMS320F28027PTS support hardware-based fault protection?

Yes, the TMS320F28027PTS supports hardware-based fault protection via three dedicated trip-zone (TZ) inputs (TZ1–TZ3) that directly disable ePWM outputs within <100 ns. These inputs accept signals from analog comparators (COMP1OUT/COMP2OUT), GPIO pins, or external fault sources. When asserted, TZ logic forces PWM outputs to high-impedance or forced-low states without CPU intervention - critical for IGBT/MOSFET short-circuit protection in motor drives.

How much Flash memory does the TMS320F28027PTS include, and is it secure?

The TMS320F28027PTS includes 32 KB of on-chip Flash memory organized as 16-bit words. This Flash is protected by TI's Code Security Module, which uses a 128-bit encryption key and lock bits to prevent unauthorized readout, programming, or erasure. Once locked, Flash contents cannot be accessed via JTAG or boot ROM - ensuring firmware intellectual property protection in production deployments.

Can the TMS320F28027PTS operate from a single 3.3-V supply?

Yes, the TMS320F28027PTS is designed for single-rail 3.3-V operation. An integrated voltage regulator generates the internal 1.8-V core supply, eliminating the need for external DC/DC converters. Power sequencing is not required: VDD, VDDIO, and VDDA may be powered simultaneously. The device includes built-in power-on and brown-out reset circuitry, ensuring reliable startup across varying input conditions.

What communication interfaces are available on the TMS320F28027PTS?

The TMS320F28027PTS integrates one Serial Communications Interface (SCI) compatible with UART protocols, one Serial Peripheral Interface (SPI) with 4-level FIFO, and one Inter-Integrated Circuit (I²C) module with 4-level FIFO. All interfaces support standard baud rates and clock configurations, and their pins are multiplexed with GPIO functions - enabling flexible system connectivity for host MCU communication, sensor data acquisition, and configuration updates.