Texas Instruments F280045RSHSR

Overview

TMS320F280045RSHSR from Texas Instruments is a 100MHz C28x real-time MCU with IEEE 754 FPU, CLA accelerator, 128KB flash, 100KB RAM (ECC/parity-protected), and 56-pin VQFN package. It integrates three 3.45MSPS 12-bit ADCs, seven PGAs, 16 ePWM channels (150ps resolution), two CAN interfaces, and FSI for high-speed isolated communication-targeted at EV charging power modules and solar string inverters.

For engineers reviewing the TMS320F280045RSHSR datasheet, TMS320F280045RSHSR pinout, TMS320F280045RSHSR application, or TMS320F280045RSHSR equivalent, key selection criteria include its 56-pin RSH package footprint, 128KB flash size, dual-zone security, InstaSPIN-FOC™ ROM support, and functional safety quality-managed (FS-QM) status per ISO 26262.

Technical Context

The TMS320F280045RSHSR implements a dual-core real-time control architecture: the 100MHz C28x CPU handles main control loops while the independent 100MHz CLA executes floating-point math tasks-including Park transforms in 13 cycles and trigonometric functions with 3×–4× speedup via TMU/VCU-I. Its analog subsystem includes three synchronized ADCs with four post-processing blocks each and seven windowed comparators with integrated 12-bit DAC references.

System-level integration is enabled by 25 GPIOs, 12 analog inputs (AIO), two CAN ports, one PMBus interface, and FSI for robust high-speed communication across isolation barriers. The device supports multiple low-power modes with external wakeup and features ERAD for hardware-assisted debugging with ten breakpoints.

Key Specifications

Pinout & Package

56-pin Very Thin Quad Flatpack No-Lead (VQFN), 8mm × 8mm, 0.5mm pitch, exposed thermal pad. Pinout validated per TI SPRS945H Figure 5-4 (RSH package).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F280041RSHR, the TMS320F280045RSHSR adds CLA and CLB for deterministic math offload and custom logic, while retaining identical pinout and analog/peripheral count; versus TMS320F280049RSHR, it trades 128KB flash and CLB tile count for cost optimization in mid-tier power conversion designs.

Availability

TMS320F280045RSHSR is available at Aetrix Electronics and suitable for EV charging power modules, solar string inverters, and industrial AC drive control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial OEM programs.

Supply support for TMS320F280045RSHSR 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 TMS320F280045RSHSR belongs to TI's C2000™ real-time MCU product line, designed specifically for closed-loop control in power electronics-emphasizing high-precision PWM, integrated analog sensing, and deterministic execution for motor drives, renewable energy, and EV infrastructure.

FAQ

What is the flash memory size and protection level of the TMS320F280045RSHSR?

The TMS320F280045RSHSR contains 128KB of on-chip flash memory, ECC-protected across both banks. This enables reliable firmware storage with error correction for industrial environments where radiation-induced bit flips or wear-out must be mitigated. The memory is partitioned to support concurrent read-while-write operations, critical for over-the-air updates in deployed systems.

Does the TMS320F280045RSHSR support functional safety certification?

Yes, the TMS320F280045RSHSR is designated as Functional Safety Quality-Managed (FS-QM) per ISO 26262 and IEC 61508. While not ASIL B-certified out-of-box like select Q1 variants, TI provides full documentation-including FMEDA reports, diagnostic coverage data, and safety manual-to support system-level ASIL B integration in motor drives and energy storage applications.

What analog peripherals are included in the TMS320F280045RSHSR?

The TMS320F280045RSHSR integrates three independent 12-bit ADCs operating at 3.45MSPS, each with four post-processing blocks (PPBs); seven programmable gain amplifiers (PGAs) with selectable gains of 3, 6, 12, or 24; seven windowed comparators (CMPSS) with integrated 12-bit DAC references; and two buffered 12-bit DAC outputs. These enable high-fidelity, low-latency analog signal acquisition and conditioning for current/voltage sensing in power converters.

Is the TMS320F280045RSHSR pin-compatible with other F28004x devices in the RSH package?

Yes, all F28004x devices offered in the 56-pin RSH package-including TMS320F280041RSHR, TMS320F280045RSHR, and TMS320F280049RSHR-share identical pinouts and mechanical footprint. This allows hardware reuse across performance tiers, with differentiation limited to flash size, CLA/CLB availability, and ROM content (e.g., InstaSPIN-FOC™ presence).

What communication interfaces does the TMS320F280045RSHSR support?

The TMS320F280045RSHSR supports two CAN 2.0B ports, one PMBus interface, one I²C port, two SPI ports, two UART-compatible SCIs, one LIN interface, and one Fast Serial Interface (FSI). FSI enables high-speed, robust communication across isolation barriers-ideal for interfacing with isolated gate drivers or auxiliary controllers in high-noise power systems.