Texas Instruments TMS5703137CGWTMEP

Overview

TMS5703137CGWTMEP from Texas Instruments is a radiation-tolerant, safety-certified 32-bit RISC microcontroller featuring dual lockstep ARM Cortex-R4F CPUs, 3 MB flash with ECC, 256 KB RAM with ECC, and integrated safety mechanisms including BIST, parity-protected peripherals, and error signaling. It operates from –55°C to 125°C and targets brake control, electric power steering, and HEV/EV inverter systems.

For engineers reviewing the TMS5703137CGWTMEP datasheet, TMS5703137CGWTMEP pinout, TMS5703137CGWTMEP application, or TMS5703137CGWTMEP equivalent, this page delivers verified technical context, validated pin functions, safety-critical peripheral mappings (DCAN, FlexRay, N2HET), and real-world design implications for aerospace, automotive, and industrial safety systems.

Technical Context

The TMS5703137CGWTMEP implements a dual-core lockstep architecture with hardware-enforced instruction-level redundancy, where both CPUs execute identical code streams and compare results at each cycle. Its FMPLL and nonmodulating PLL provide independent clock domains for core, peripheral, and EMIF subsystems, supporting up to 180 MHz operation with 298 DMIPS performance.

Safety-critical data paths are protected by ECC on flash and RAM, parity on MibADC buffers and message RAM, and loopback-capable I/O for diagnostic coverage. The device integrates two N2HET coprocessors (32+18 channels), three DCAN controllers compliant with CAN 2.0B, and an IEEE 802.3-compliant 10/100 Mbps EMAC with MII/RMII support - all operating within the extended –55°C to 125°C temperature range.

Key Specifications

Pinout & Package

337-ball NFBGA (GWT) package with SnPb finish, 1.0 mm ball pitch, and thermal pad exposed on underside for enhanced heat dissipation in high-power safety applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar safety microcontroller applications.

Compared with TMS5703137CGWTQEP, the TMS5703137CGWTMEP adds guaranteed –55°C functionality and extended product lifecycle support; versus SPC574S40E1, it delivers superior real-time networking (EMAC/FlexRay), higher memory density, and true hardware lockstep - critical for ASIL-D and SIL-3 certification evidence.

Availability

TMS5703137CGWTMEP is available at Aetrix Electronics and suitable for braking systems, electric power steering, and HEV/EV inverter control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TMS5703137CGWTMEP 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 high-reliability microcontrollers.

The TMS570LS3137-EP product line was designed specifically for functional safety-critical applications in aerospace, defense, medical, and automotive domains - integrating hardware safety mechanisms, extended temperature qualification, and controlled baseline manufacturing.

FAQ

What safety certifications apply to the TMS5703137CGWTMEP?

The TMS5703137CGWTMEP is qualified to meet ISO 26262 ASIL-D and IEC 61508 SIL-3 requirements. Its dual lockstep CPU, ECC memory, BIST logic, and error signaling module are architected to deliver >99% fault coverage. TI provides certified safety manuals, FMEDA reports, and diagnostic software libraries specifically for the TMS5703137CGWTMEP to support certification evidence generation.

Does the TMS5703137CGWTMEP support Ethernet communication?

Yes, the TMS5703137CGWTMEP integrates a fully compliant IEEE 802.3 10/100 Mbps Ethernet MAC (EMAC) with MII and RMII interfaces, plus MDIO management. It supports full-duplex operation, hardware checksum offload, and direct memory access via DMA - enabling deterministic real-time networking in avionics and rail systems using the TMS5703137CGWTMEP.

How does the N2HET module enhance real-time control in the TMS5703137CGWTMEP?

The TMS5703137CGWTMEP features two N2HET modules (N2HET1 with 32 channels, N2HET2 with 18 channels) that operate independently of the main CPU. Each supports programmable PWM, input capture, and GPIO with hardware-suppression filters. This offloads timing-critical tasks - such as motor phase control or sensor synchronization - from the Cortex-R4F cores, ensuring sub-microsecond jitter and deterministic behavior in the TMS5703137CGWTMEP.

What is the difference between TMS5703137CGWTMEP and TMS5703137CGWTQEP?

The TMS5703137CGWTMEP and TMS5703137CGWTQEP share identical silicon and feature sets, but differ in temperature qualification: the "MEP" variant is rated for –55°C to 125°C, while the "QEP" variant is rated for –40°C to 125°C. Both use the same 337-ball GWT package and support identical safety mechanisms, making the TMS5703137CGWTMEP the only choice for cryogenic defense or space applications requiring guaranteed –55°C startup.

Can the TMS5703137CGWTMEP interface with external SDRAM?

Yes, the TMS5703137CGWTMEP includes a 16-bit External Memory Interface (EMIF) supporting synchronous DRAM (SDRAM), asynchronous SRAM, and FPGA peripherals. It provides dedicated EMIF_CLK, CKE, nRAS, nCAS, and nWE signals - enabling expansion of data buffers or offloading of graphics/video processing in safety-critical displays using the TMS5703137CGWTMEP.