Texas Instruments TMS320F28034RSHT

Overview

TMS320F28034RSHT from Texas Instruments is a 60-MHz C28x-core real-time microcontroller with integrated Control Law Accelerator (CLA), 32 KB flash, 10 KB SARAM, 14 ePWM channels, 12-bit 4.6 MSPS ADC with 16 inputs, and dual-sample-and-hold. It targets closed-loop motor control in DC/DC converters and EV charging power modules.

For engineers reviewing the TMS320F28034RSHT datasheet, TMS320F28034RSHT pinout, TMS320F28034RSHT application, or TMS320F28034RSHT equivalent, key selection criteria include CLA offload capability, HRPWM resolution for high-frequency switching, eCAN/LIN interface support, on-chip temperature sensor integration, and VQFN-56 thermal performance in compact industrial power designs.

Technical Context

The TMS320F28034RSHT implements a Harvard-architecture 32-bit C28x CPU with atomic operations and fast interrupt response, paired with a dedicated 32-bit floating-point CLA that executes control loops independently of the main CPU. Its memory subsystem includes 32 KB of secure flash, 10 KB of zero-wait-state SARAM, and 8 KB boot ROM.

Peripheral integration centers on real-time actuation: 14 ePWM channels (7 with high-resolution extension), 3 eCAP modules, 1 eQEP module, 12-bit ADC with 4.6 MSPS throughput and dual sample-and-hold, plus serial interfaces including eCAN, LIN, I²C, two SPIs, and one SCI UART - all accessible via 45 multiplexed GPIO pins with input filtering.

Key Specifications

Pinout & Package

Package: 56-pin RSH Very Thin Quad Flatpack (No Lead) VQFN, 7.0 mm × 7.0 mm body, 0.4 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28035RSHT, the TMS320F28034RSHT offers 32 KB flash optimized for cost-sensitive, space-constrained DC/DC controllers; versus TMS320F28034PAGT, it delivers identical functionality in a 30% smaller footprint ideal for modular power bricks.

Availability

TMS320F28034RSHT is available at Aetrix Electronics and suitable for DC/DC converter control, EV charging power modules, and solar microinverters requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for TMS320F28034RSHT 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 communications markets.

The TMS320F2803x product line delivers entry-performance real-time control MCUs optimized for cost-sensitive, thermally constrained power electronics - emphasizing CLA acceleration, high-resolution PWM, and analog integration in low-pin-count packages.

FAQ

What is the maximum operating frequency of the TMS320F28034RSHT?

The TMS320F28034RSHT operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67 ns instruction cycle time. This speed is achieved using the C28x 32-bit core with on-chip PLL and internal voltage regulator, and is fully supported across its –40°C to 125°C operating range without derating.

Does the TMS320F28034RSHT include a hardware floating-point unit?

No, the TMS320F28034RSHT does not include a hardware floating-point unit (FPU). It uses a fixed-point C28x CPU core. However, it integrates a dedicated Control Law Accelerator (CLA) with 32-bit floating-point math capability that runs control algorithms independently of the main CPU - providing floating-point performance where needed without FPU overhead.

How many high-resolution PWM channels does the TMS320F28034RSHT support?

The TMS320F28034RSHT supports 7 high-resolution PWM (HRPWM) channels. These are implemented within its 14 total ePWM modules and provide 150-ps resolution for fine-grained dead-time control and frequency modulation - critical for SiC and GaN-based power stages in high-efficiency converters.

Is the TMS320F28034RSHT pin-compatible with other F2803x devices in the RSH package?

Yes, the TMS320F28034RSHT is pin-compatible with all other TMS320F2803x variants offered in the 56-pin RSH VQFN package (e.g., TMS320F28030RSHT, TMS320F28031RSHT, TMS320F28032RSHT, TMS320F28033RSHT, TMS320F28035RSHT), sharing identical pinout, electrical characteristics, and mechanical footprint.

What serial communication interfaces are integrated into the TMS320F28034RSHT?

The TMS320F28034RSHT integrates one enhanced Controller Area Network (eCAN) module, one Local Interconnect Network (LIN) module, one Inter-Integrated Circuit (I²C) module, two Serial Peripheral Interface (SPI) modules, and one Serial Communications Interface (SCI) UART - all accessible through multiplexed GPIO pins and supporting concurrent operation under PIE interrupt management.