Texas Instruments TMS320F28334PTPS

Overview

TMS320F28334PTPS from Texas Instruments is a 150-MHz C2000™ real-time microcontroller with IEEE 754 single-precision FPU, 128K × 16 flash, 34K × 16 SARAM, 12-bit 16-channel ADC (80-ns conversion), and dual eCAN modules - deployed in industrial motor drives, solar inverters, and traction control systems.

For engineers reviewing the TMS320F28334PTPS datasheet, TMS320F28334PTPS pinout, TMS320F28334PTPS application, or TMS320F28334PTPS equivalent, key selection criteria include FPU-enabled closed-loop control latency, HRPWM resolution (150-ps MEP), thermal grade (–40°C to 125°C), HLQFP-176 package compatibility, and AEC Q100-qualified variants for automotive powertrain use.

Technical Context

The TMS320F28334PTPS implements a Harvard-architecture 32-bit C28x CPU with hardware FPU acceleration, enabling deterministic floating-point math for real-time motor control algorithms. Its peripheral set includes six ePWM modules with high-resolution HRPWM outputs, two eCAN controllers supporting ISO 11898-1, and a 12-bit ADC with dual sample-and-hold for simultaneous current/voltage sampling.

System-level timing is managed via on-chip oscillator with PLL (150 MHz operation at 1.9 V core), watchdog timer, and PIE block servicing 58 peripheral interrupts. Memory architecture features unified programming model across 128K flash, 34K SARAM, 8K boot ROM, and 1K OTP - all protected by 128-bit security key lock.

Key Specifications

Pinout & Package

Thermally Enhanced Low-Profile Quad Flatpack (HLQFP) with 176 leads, 24.0 mm × 24.0 mm body size, and exposed thermal pad for PCB heat dissipation in high-power control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28334PTPS, the TMS320F28335PTP offers double flash capacity for safety-certified code, while the TMS320F28377DPTP delivers scalable dual-core performance but requires PCB redesign and toolchain migration.

Availability

TMS320F28334PTPS is available at Aetrix Electronics and suitable for industrial motor drives, solar inverters, and electric vehicle traction systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TMS320F28334PTPS 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 connectivity technologies for industrial, automotive, and power applications.

The TMS320F28334PTPS belongs to TI's C2000™ real-time MCU family, engineered specifically for deterministic closed-loop control in high-efficiency power conversion and motion systems - emphasizing FPU acceleration, high-resolution PWM, and robust peripheral integration.

FAQ

What is the maximum operating frequency and core voltage specification for the TMS320F28334PTPS?

The TMS320F28334PTPS operates at up to 150 MHz with a 6.67-ns instruction cycle time at 1.9-V core supply. At 1.8-V core, it supports 100 MHz operation. The 3.3-V I/O domain remains fully compatible with standard logic interfaces, enabling direct connection to external transceivers, ADCs, and gate drivers without level-shifting circuitry.

Does the TMS320F28334PTPS include a floating-point unit, and how does it impact motor control development?

Yes, the TMS320F28334PTPS integrates a hardware IEEE 754 single-precision FPU. This eliminates fixed-point scaling complexity in field-oriented control (FOC) algorithms, reduces development time for trigonometric and matrix operations, and improves numerical accuracy in real-time current and speed estimation - directly enhancing torque smoothness and dynamic response in servo and inverter applications.

What are the memory resources available on the TMS320F28334PTPS, and how are they allocated?

The TMS320F28334PTPS provides 128K × 16 on-chip flash for program storage, 34K × 16 SARAM for data and stack, 8K × 16 boot ROM with math tables and boot modes, and 1K × 16 OTP ROM for calibration constants or security keys. All memory blocks are protected by the 128-bit security module to prevent unauthorized access or firmware extraction.

How many PWM and HRPWM channels does the TMS320F28334PTPS support, and what is their resolution?

The TMS320F28334PTPS supports 18 ePWM outputs across six modules, with six dedicated HRPWM channels offering 150-ps minimum pulse width resolution. This enables precise dead-time insertion, fine-grained duty-cycle control, and accurate phase alignment - essential for minimizing switching losses and electromagnetic interference in high-frequency SiC/GaN inverter designs.

Is the TMS320F28334PTPS qualified for automotive applications, and what temperature range does it support?

Yes, the TMS320F28334PTPS is offered in S-grade (–40°C to 125°C) and Q-grade (–40°C to 125°C, AEC Q100 qualified) variants. The PTP package variant supports both grades, making it suitable for under-hood automotive applications including traction inverters, on-board chargers, and battery management system controllers where extended thermal operation and functional safety compliance are required.