Texas Instruments TMS320F28232PTPQ

Overview

TMS320F28232PTPQ from Texas Instruments is a 100-MHz C2000 real-time microcontroller with 64K × 16 flash, 26K × 16 SARAM, 12-bit 16-channel ADC (80-ns conversion), dual eCAN modules, and 88 GPIOs. It executes control loops in motor drives, digital power converters, and automotive traction inverters using its 32-bit C28x CPU core and integrated HRPWM (150-ps MEP resolution).

For engineers reviewing the TMS320F28232PTPQ datasheet, TMS320F28232PTPQ pinout, TMS320F28232PTPQ application, or TMS320F28232PTPQ equivalent, key selection criteria include its AEC-Q100 qualified −40°C to 125°C operation, HLQFP-176 package with thermal enhancement, absence of FPU (vs. F2833x), and compatibility with Code Composer Studio™ and C2000 DigitalPower SDK.

Technical Context

The TMS320F28232PTPQ implements a Harvard-architecture C28x CPU core without floating-point unit, operating at 100 MHz (10-ns cycle time) with 1.9-V/1.8-V core and 3.3-V I/O. Its memory subsystem includes 64K × 16 flash organized in eight sectors, 26K × 16 single-access RAM (SARAM), 1K × 16 OTP ROM, and 8K × 16 boot ROM supporting SCI/SPI/CAN/I²C boot modes.

Peripheral integration centers on deterministic real-time control: six ePWM modules (12 outputs), four HRPWM channels (150-ps MEP), four eCAP inputs, two eQEP interfaces, three 32-bit CPU timers, and dual eCAN 2.0B modules. The 12-bit ADC supports simultaneous sampling across two 8-channel MUX banks with internal/external reference selection.

Key Specifications

Pinout & Package

Thermally enhanced 176-pin Low-Profile Quad Flatpack (HLQFP) with 0.4-mm pitch, 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 TMS320F28232PTPQ, the TMS320F28232PTP offers identical functionality at lower cost but lacks automotive qualification, while the TMS320F28332PTPQ adds FPU and flash capacity for computationally intensive control tasks - making TMS320F28232PTPQ optimal for cost-constrained, thermally demanding automotive powertrain applications.

Availability

TMS320F28232PTPQ is available at Aetrix Electronics and suitable for automotive traction inverters, industrial servo drives, and digital power converters requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TMS320F28232PTPQ 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The TMS320F28232PTPQ belongs to TI's C2000™ real-time microcontroller family, designed specifically for closed-loop control applications requiring deterministic timing, high-resolution PWM, and integrated analog peripherals in motor drives and power electronics.

FAQ

Does the TMS320F28232PTPQ include a floating-point unit (FPU)?

No, the TMS320F28232PTPQ uses a fixed-point C28x CPU core without an integrated IEEE 754 FPU. This distinguishes it from the F2833x series. All arithmetic in TMS320F28232PTPQ must be implemented using integer or Q-format math, supported by dedicated MAC instructions and optimized C2000 compiler libraries. The absence of FPU reduces silicon area and power consumption while maintaining deterministic execution for real-time control loops.

What is the maximum operating frequency of the TMS320F28232PTPQ?

The TMS320F28232PTPQ operates at a maximum CPU frequency of 100 MHz, corresponding to a 10-ns instruction cycle time. This speed is achieved at 1.9-V core voltage. At 1.8-V core voltage, the maximum frequency is reduced to 80 MHz. The device uses an on-chip PLL to multiply an external crystal or clock source, and the system clock configuration is managed through the clock and system control module.

How many HRPWM channels does the TMS320F28232PTPQ support?

The TMS320F28232PTPQ supports four HRPWM channels with 150-ps minimum pulse-width resolution. These are derived from ePWM1A, ePWM2A, ePWM3A, and ePWM4A outputs. Each HRPWM channel provides fine-grained control over dead time, phase shift, and duty cycle - critical for SiC and GaN-based power stages where nanosecond-level timing precision directly impacts efficiency and EMI performance.

Is the TMS320F28232PTPQ pin-compatible with other C2000 MCUs in HLQFP-176 packaging?

The TMS320F28232PTPQ shares the same HLQFP-176 (PTP) mechanical footprint and pin count with TMS320F28234PTPQ, TMS320F28235PTPQ, and TMS320F28332PTPQ, but functional pin assignments differ across devices. While power and ground pins align, peripheral signal mapping (e.g., CAN, SCI, ePWM) varies significantly between F2823x and F2833x families. Therefore, PCB layout is not interchangeable without schematic and firmware revision.

What boot modes are supported by the TMS320F28232PTPQ?

The TMS320F28232PTPQ supports hardware-configurable boot modes via GPIO pins, including boot from internal flash, SCI (UART), SPI, CAN, I²C, McBSP, XINTF, and parallel I/O. The 8K × 16 boot ROM contains standardized initialization routines and math tables, enabling reliable firmware recovery and field updates without external host intervention. Boot mode selection occurs at reset and is latched before application code execution begins.