Texas Instruments TMS320F28065PZPS

Overview

TMS320F28065PZPS 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 TMS320F28065PZPS datasheet, TMS320F28065PZPS pinout, TMS320F28065PZPS application, or TMS320F28065PZPS equivalent, key selection criteria include ePWM channel count (16), HRPWM capability (8 channels), on-chip flash (64 KB), temperature range (–40°C to 125°C), and 100-pin HTQFP package with PowerPAD thermal enhancement.

Technical Context

The TMS320F28065PZPS implements a Harvard-architecture C28x CPU with atomic instruction execution and unified memory mapping, paired with a dedicated 32-bit floating-point CLA that runs control law code independently of the main CPU. Its peripheral set includes dual-sample-and-hold ADC with ratio-metric VREFHI/VREFLO support and ePWM modules enhanced for dual-edge modulation.

System-level timing relies on two internal zero-pin oscillators plus external crystal or clock input, with PLL-based clock synthesis and missing-clock detection. The device integrates trip-zone protection across all ePWM outputs and supports secure firmware via 128-bit encryption keys and OTP ROM.

Key Specifications

Pinout & Package

Package: 100-pin HTQFP (PZP) with exposed PowerPAD thermal pad - requires PCB ground plane connection via thermal vias for effective heat dissipation. Not electrically shorted to internal VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28069PZPS, the TMS320F28065PZPS offers half the flash capacity but identical real-time control performance, peripheral timing, and thermal rating - making it optimal for cost-sensitive, mature motor drive designs. The TMS320F280049PZPS delivers generational improvements but mandates full hardware and software requalification.

Availability

TMS320F28065PZPS is available at Aetrix Electronics and suitable for industrial motor drives, solar power optimizers, and EV charging station power modules requiring stable component supply and long-term production continuity.

Supply support for TMS320F28065PZPS 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 TMS320F28065PZPS belongs to TI's C2000™ real-time MCU product line, engineered specifically for deterministic closed-loop control in motor drives, digital power, and energy conversion systems.

FAQ

What is the maximum operating frequency and instruction cycle time of the TMS320F28065PZPS?

The TMS320F28065PZPS operates at a maximum CPU frequency of 90 MHz, delivering an instruction cycle time of 11.11 ns. This timing applies to the C28x core executing both fixed- and floating-point instructions, and is sustained under recommended operating conditions (3.3-V supply, –40°C to 125°C). The CLA operates concurrently at the same clock rate, enabling parallel real-time computation.

Does the TMS320F28065PZPS include USB functionality?

No, the TMS320F28065PZPS does not include USB functionality. USB 2.0 is only available on TMS320F2806xU, TMS320F2806xM, and TMS320F2806xF variants per the official device comparison table. The TMS320F28065PZPS retains full SCI/UART, SPI, I²C, eCAN, and McBSP interfaces for host communication and system interconnect.

What is the flash memory size and security capability of the TMS320F28065PZPS?

The TMS320F28065PZPS integrates 64 KB of on-chip flash memory (16-bit word organization) with full code security enabled via the Code Security Module (CSM). It supports 128-bit password protection, OTP ROM (1 KB) for secure key storage, and configurable memory block locking to prevent unauthorized read-out or firmware reverse-engineering.

How many high-resolution PWM (HRPWM) channels does the TMS320F28065PZPS support?

The TMS320F28065PZPS supports 8 high-resolution PWM (HRPWM) channels, derived from its 16 total ePWM outputs. Each HRPWM channel provides sub-nanosecond resolution for fine dead-time control and frequency modulation - essential for SiC/GaN-based resonant converters and precision motor phase timing in FOC applications.

What package type and thermal specification apply to the TMS320F28065PZPS?

The TMS320F28065PZPS uses a 100-pin HTQFP package with PowerPAD (PZP), measuring 14.0 mm × 14.0 mm. It is rated for operation from –40°C to 125°C (S-grade) and requires the exposed PowerPAD to be soldered to the PCB ground plane using thermal vias - though it is not electrically connected to internal VSS.