Texas Instruments F280034SPN

Overview

TMS320F280034SPN from Texas Instruments is a C28x-based real-time microcontroller optimized for power electronics control, featuring a 120-MHz DSP core with IEEE 754 FPU, 128KB ECC-protected flash, 69KB ECC-protected RAM, and integrated analog peripherals including three 4-MSPS 12-bit ADCs and 16 ePWM channels (8 with 150-ps resolution). It targets high-efficiency motor drives and digital power conversion.

For engineers reviewing the TMS320F280034SPN datasheet, TMS320F280034SPN pinout, TMS320F280034SPN application, or TMS320F280034SPN equivalent, key selection criteria include CLA support for parallel control-law execution, CAN FD and FSI interfaces for high-speed isolated communication, functional safety readiness (ASIL B/SIL 2), and LQFP-80 package compatibility with industrial temperature range (–40°C to 125°C).

Technical Context

The TMS320F280034SPN implements a dual-core real-time architecture: the main C28x CPU runs at 120 MHz with FPU, TMU, and VCRC acceleration, while the independent CLA executes floating-point control algorithms concurrently. Its analog subsystem tightly couples three 12-bit ADCs (4 MSPS) with ePWM modules and four CMPSS units for fast overcurrent protection.

System-level features include dual internal 10-MHz oscillators, windowed watchdog timer, missing-clock detection, and Dual-Clock Comparator (DCC) for robust timing supervision. The device supports Live Firmware Update with banked flash erase optimization and hardware-based memory self-test (MPOST/HWBIST) for reliability-critical deployments.

Key Specifications

Pinout & Package

Package: 80-pin Low-profile Quad Flatpack (LQFP), PN suffix, 14 mm × 14 mm footprint, 0.5-mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F280034-Q1, the TMS320F280034SPN offers identical real-time performance and peripheral functionality but lacks AEC-Q100 certification-making it suitable for industrial, telecom, and renewable energy applications where commercial-grade qualification suffices. Versus TMS320F280037, it trades flash capacity and CLB tile count for cost-sensitive designs where 128KB and standard logic augmentation meet requirements.

Availability

TMS320F280034SPN is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and solar microinverters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TMS320F280034SPN 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 TMS320F28003x product line was designed specifically for ultra-low-latency real-time control in power electronics-including motor drives, digital power, EV charging, and renewable energy systems-leveraging C28x DSP performance, analog integration, and functional safety features.

FAQ

What is the maximum operating frequency of the C28x CPU in the TMS320F280034SPN?

The C28x CPU in the TMS320F280034SPN operates at a maximum frequency of 120 MHz. This clock speed applies to both fixed-point and IEEE 754 single-precision floating-point instruction execution. The CPU is supported by hardware accelerators including the Trigonometric Math Unit (TMU) and Fast Integer Division (FINTDIV) unit, which reduce computational latency for common real-time control functions without increasing core clock demand. All timing specifications in the TMS320F280034SPN datasheet assume operation at this rated frequency under recommended conditions.

Does the TMS320F280034SPN support functional safety certification out of the box?

The TMS320F280034SPN is designed to support functional safety development up to ASIL B and SIL 2, with built-in diagnostics including Memory Power-On Self Test (MPOST), Hardware Built-in Self Test (HWBIST), Embedded Real-time Analysis and Diagnostic (ERAD), and Dual-Clock Comparator (DCC). However, formal ISO 26262 certification by TÜV SÜD applies only to PZ and Q100 PM package variants-not the PN-package TMS320F280034SPN. Customers must implement system-level safety mechanisms and follow TI's safety manual to achieve target integrity levels.

How many ePWM channels does the TMS320F280034SPN provide, and what is their resolution capability?

The TMS320F280034SPN provides 16 ePWM channels, eight of which (ePWM1–ePWM4) support high-resolution mode with 150-ps step resolution. This enables precise dead-time control and fine-grained timing adjustments critical for SiC and GaN power stages. All 16 channels support frequency-independent resolution modes and integrated trip-zone protection. The ePWM modules are tightly synchronized with the three 4-MSPS ADCs to ensure accurate current/voltage sampling aligned with switching events.

What communication interfaces are available on the TMS320F280034SPN for isolated high-speed data transfer?

The TMS320F280034SPN includes one Fast Serial Interface (FSI) with separate transmitter and receiver lanes, supporting data rates up to 200 Mbps across galvanic isolation boundaries. FSI is complemented by two SPI ports, two SCI-compatible UARTs, and one PMBus interface-all usable for non-isolated communication. For automotive or industrial networks, it integrates one Controller Area Network (CAN/DCAN) port and one CAN FD (MCAN) port, enabling both legacy diagnostics and high-bandwidth control data exchange.

Is the TMS320F280034SPN pin-compatible with other members of the F28003x family?

Yes-the TMS320F280034SPN uses the PN (80-pin LQFP) package and shares identical pinout with other F28003x devices offered in that package, including TMS320F280034-Q1, TMS320F280037, and TMS320F280037C-Q1. Pin functions, electrical characteristics, and peripheral mappings are consistent across these variants. This allows direct PCB reuse when upgrading flash size or adding AEC-Q100 qualification, provided software and configuration accommodate differences in memory layout and feature enablement.