Texas Instruments TMS320F28234PTPQ

Overview

TMS320F28234PTPQ from Texas Instruments is a 150-MHz C2000™ real-time microcontroller with 128K × 16 flash, 34K × 16 SARAM, 12-bit 16-channel ADC (80-ns conversion), dual eCAN modules, and 88 GPIOs - designed for high-precision motor control and digital power in automotive-grade (-40°C to 125°C) environments.

For engineers reviewing the TMS320F28234PTPQ datasheet, TMS320F28234PTPQ pinout, TMS320F28234PTPQ application, or TMS320F28234PTPQ equivalent, key selection criteria include its 150-MHz C28x CPU, HRPWM with 150-ps MEP resolution, AEC Q100 qualification, and HLQFP-176 package compatibility with industrial thermal management requirements.

Technical Context

The TMS320F28234PTPQ implements a Harvard-architecture 32-bit C28x CPU with deterministic real-time interrupt handling and unified memory programming model. It integrates six ePWM modules (12 outputs), four eCAP inputs, two eQEP interfaces, and a 6-channel DMA controller supporting ADC, McBSP, ePWM, XINTF, and SARAM transfers.

Its analog subsystem includes a 12-bit ADC with dual sample-and-hold, internal/external reference selection, and simultaneous sampling across two 8-channel multiplexers. Clocking uses an on-chip oscillator with PLL support, and security is enforced via 128-bit key lock protecting flash, OTP, and RAM blocks.

Key Specifications

Pinout & Package

Package: Thermally Enhanced Low-Profile Quad Flatpack (HLQFP), 176-pin, body size 24.0 mm × 24.0 mm, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28234PTPQ, the TMS320F28234PTP lacks automotive qualification and thermal margin, while the TMS320F28334PTPQ adds hardware FPU support - making it preferable for computationally intensive control laws but unnecessary for fixed-point optimized firmware.

Availability

TMS320F28234PTPQ is available at Aetrix Electronics and suitable for automotive traction inverters, industrial servo drives, solar central inverters, and digital AC-DC power supplies requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TMS320F28234PTPQ 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 with decades of automotive and industrial MCU expertise.

The TMS320F28234PTPQ belongs to TI's C2000™ real-time microcontroller family, engineered specifically for high-performance closed-loop control in motor drives, digital power, and renewable energy systems - emphasizing deterministic timing, analog integration, and functional safety readiness.

FAQ

What is the maximum operating frequency of the TMS320F28234PTPQ?

The TMS320F28234PTPQ operates at up to 150 MHz (6.67-ns cycle time) when powered with a 1.9-V core supply. At 1.8-V core voltage, it supports up to 100 MHz operation. This frequency enables sub-microsecond interrupt response and tight control loop execution for demanding real-time applications like motor field-oriented control and digital power regulation. The TMS320F28234PTPQ achieves this performance while maintaining compatibility with standard 3.3-V I/O interfaces.

Does the TMS320F28234PTPQ include a floating-point unit (FPU)?

No, the TMS320F28234PTPQ does not include a hardware floating-point unit. It is a fixed-point C28x CPU device. Floating-point capability is present only in the F2833x series (e.g., TMS320F28334PTPQ). The TMS320F28234PTPQ relies on optimized fixed-point math libraries and compiler support for efficient implementation of control algorithms, which reduces silicon area and power consumption while delivering deterministic timing - critical for hard real-time motor and power applications.

What package type and pin count does the TMS320F28234PTPQ use?

The TMS320F28234PTPQ uses a Thermally Enhanced Low-Profile Quad Flatpack (HLQFP) package with 176 pins (orderable code PTP). Its body size is 24.0 mm × 24.0 mm, and it features exposed thermal pad construction for improved heat dissipation in high-power-density applications such as automotive inverters and industrial servo drives. This package is pin-compatible with other PTP variants in the F2823x/F2833x families, enabling flexible design reuse across temperature grades.

Is the TMS320F28234PTPQ qualified for automotive applications?

Yes, the TMS320F28234PTPQ is AEC Q100 Grade 1 qualified for automotive applications, rated for operation from -40°C to +125°C. The "Q" suffix explicitly denotes this qualification. It includes built-in safety features such as a windowed watchdog timer, 128-bit code security, and robust ESD protection - supporting functional safety development up to ASIL-B in traction inverter, battery management, and chassis control systems. The TMS320F28234PTPQ meets stringent automotive reliability and qualification testing requirements.

How much on-chip memory does the TMS320F28234PTPQ provide?

The TMS320F28234PTPQ integrates 128K × 16 bits of on-chip flash memory for program storage and 34K × 16 bits of single-access RAM (SARAM) for data and stack operations. It also includes 1K × 16 bits of one-time programmable (OTP) ROM for calibration constants and secure boot keys, plus an 8K × 16-bit boot ROM with multi-interface boot modes. This memory configuration supports complex real-time control firmware with space for dual-bank updates and runtime parameter tables - all without external memory expansion.