Texas Instruments F2800157SPNR

Overview

F2800157SPNR from Texas Instruments is a dual-core C28x real-time microcontroller with lockstep safety architecture, 120MHz operation, IEEE 754 FPU, TMU, and 256KB ECC-protected flash. It integrates two 4MSPS 12-bit ADCs, 14 ePWM channels (4 with 150ps resolution), one CAN FD port, and functional safety certification up to ASIL B for automotive powertrain and industrial motor control.

For engineers reviewing the F2800157SPNR datasheet, F2800157SPNR pinout, F2800157SPNR application, or F2800157SPNR equivalent, key selection factors include its dual-lockstep CPU architecture, 256KB flash with ECC, 120MHz deterministic timing, integrated CMPSS with 12-bit DAC, and AEC-Q100 Grade 1 qualification in 80-pin LQFP package.

Technical Context

The F2800157SPNR implements two identical TMS320C28x CPUs operating in lockstep with hardware-level comparison and error detection, enabling ASIL B compliance without software overhead. Its real-time subsystem includes dedicated accelerators: Trigonometric Math Unit (TMU) for fast sine/cosine computation and VCRC engine for CRC-32/16 acceleration.

System-level timing integrity is enforced via dual-clock comparator (DCC), windowed watchdog timer, missing clock detection, and brownout reset circuitry. The analog subsystem tightly couples two 12-bit ADCs (4MSPS) with four post-processing blocks per ADC and one full CMPSS module featuring ramp-generator DACs for closed-loop protection in power stage control.

Key Specifications

Pinout & Package

Package: 80-pin Low-profile Quad Flatpack (LQFP), 14mm × 14mm body, 0.5mm pitch. Thermal pad (exposed die attach) not present in PN variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with F2800157-Q1, F2800157SPNR lacks AEC-Q100 qualification but shares identical silicon functionality and pinout; compared with F2800155, it delivers double flash capacity, integrated CMPSS, and 52 GPIOs - critical for complex multi-sensor power electronics systems.

Availability

F2800157SPNR is available at Aetrix Electronics and suitable for automotive powertrain control, industrial servo drives, and onboard charger (OBC) systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for F2800157SPNR 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 over 50 years of innovation in power electronics and real-time control.

The TMS320F280015x series is part of TI's C2000™ real-time microcontroller portfolio, designed specifically for ultra-low-latency, high-precision control in power conversion, motor drive, and digital power applications.

FAQ

What is the maximum operating frequency of the F2800157SPNR?

The F2800157SPNR operates at a maximum CPU frequency of 120 MHz. This clock rate applies to both C28x cores in lockstep configuration and is sustained across the full –40°C to 125°C ambient temperature range. The device achieves this performance using an on-chip PLL fed by either internal oscillators or external crystal/clock sources, with built-in missing clock detection to ensure timing integrity.

Does the F2800157SPNR support CAN FD communication?

Yes, the F2800157SPNR includes one Controller Area Network with Flexible Data-Rate (CAN FD/MCAN) bus port compliant with ISO 11898-1:2015. It supports data rates up to 5 Mbps in FD mode and maintains full backward compatibility with classical CAN 2.0B. The MCAN module includes message RAM, transmit/receive FIFOs, and error counters accessible via memory-mapped registers.

What safety certifications does the F2800157SPNR hold?

The F2800157SPNR is not AEC-Q100 qualified; however, its silicon is identical to the certified TMS320F2800157-Q1, which holds ISO 26262 ASIL B certification (TÜV SÜD) and IEC 61508 SIL 2 certification. Functional safety documentation-including safety manual, FMEDA, and diagnostic coverage reports-is publicly available and applicable to F2800157SPNR for system-level safety development.

How many analog-to-digital converter (ADC) channels does the F2800157SPNR support?

The F2800157SPNR integrates two independent 12-bit analog-to-digital converters, each capable of 4 million samples per second (4 MSPS). It supports up to 21 external analog input channels (11 shared with GPIO), with 10 additional digital inputs available on analog-capable pins. Each ADC includes four post-processing blocks (PPBs) for real-time filtering, averaging, and oversampling.

What package options are available for the F2800157SPNR?

The F2800157SPNR is offered exclusively in the 80-pin Low-profile Quad Flatpack (LQFP) package, designated PN suffix, with 14mm × 14mm body size and 0.5mm pitch. This package supports 52 GPIOs (11 shared with analog functions) and provides full peripheral access including dual ADCs, 14 ePWM channels, CAN FD, and all communication interfaces documented in the datasheet.