Texas Instruments TMS5703137CPGEQQ1

Overview

TMS5703137CPGEQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual lockstep ARM Cortex-R4F CPUs, 3 MB ECC-protected flash, 256 KB ECC-protected RAM, and integrated safety features including BIST, voltage/clock monitoring, and error signaling. It delivers 298 DMIPS at 180 MHz and targets ASIL-D functional safety applications such as electric power steering and braking systems.

For engineers reviewing the TMS5703137CPGEQQ1 datasheet, TMS5703137CPGEQQ1 pinout, TMS5703137CPGEQQ1 application, or TMS5703137CPGEQQ1 equivalent, key selection criteria include dual-CPU lockstep architecture, 3 MB flash with ECC, 180 MHz operation, 3 CAN controllers, FlexRay, Ethernet MAC, and 144-pin LQFP (PGE) packaging for automotive control unit designs.

Technical Context

The TMS5703137CPGEQQ1 implements a safety-critical dual-core lockstep execution model where both Cortex-R4F CPUs execute identical instructions and compare results in real time. Its memory subsystem includes ECC on 3 MB flash and 256 KB RAM, parity on peripheral memories, and built-in self-test (BIST) for CPU and SRAM.

Peripherals are safety-enhanced: three DCAN controllers compliant with CAN 2.0B (up to 1 Mbps), dual N2HET modules (32 + 18 channels) with dedicated HTUs and MPUs, two 12-bit MibADCs (24 total channels), and IEEE 802.3-compliant EMAC supporting MII/RMII/MDIO-all operating under a unified clock domain managed by the Global Clock Module with FMPLL and non-modulating FlexRay PLL.

Key Specifications

Pinout & Package

The TMS5703137CPGEQQ1 is housed in a 144-pin LQFP (PGE) package with exposed thermal pad, optimized for automotive PCB layouts requiring thermal reliability and mechanical robustness. Pin functions follow TI's standardized PGE pinout for the TMS570LS3137 family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS5703137CPGEQQ1, the ZWT variant offers greater I/O and memory expansion flexibility in smaller footprint, while the SPC574S40E1 provides alternative architecture and certification path-but lacks Ethernet MAC and FlexRay, limiting suitability for next-gen ADAS or zonal architecture designs.

Availability

TMS5703137CPGEQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and battery management systems requiring stable component supply across extended automotive production lifecycles.

Supply support for TMS5703137CPGEQQ1 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 deep expertise in automotive safety ICs.

The TMS570 Hercules™ family was designed specifically for ASIL-D and SIL-3 safety-critical applications, combining lockstep processing, memory ECC, and diagnostic accelerators to reduce functional safety certification effort.

FAQ

What safety certifications does the TMS5703137CPGEQQ1 support?

The TMS5703137CPGEQQ1 is qualified for automotive applications per AEC-Q100 Grade 1 and supports ISO 26262 ASIL-D development workflows. Its dual lockstep CPUs, ECC memory, BIST logic, and ESM module provide the hardware foundation required for ASIL-D decomposition. TI supplies safety manuals, FMEDA reports, and diagnostic software libraries to accelerate certification of end-systems using the TMS5703137CPGEQQ1.

Does the TMS5703137CPGEQQ1 include an Ethernet MAC, and what interfaces does it support?

Yes, the TMS5703137CPGEQQ1 integrates a fully featured 10/100 Mbps Ethernet Media Access Controller (EMAC) compliant with IEEE 802.3. It supports MII, RMII, and MDIO interfaces, enabling direct connection to standard Ethernet PHYs without external glue logic. The EMAC includes DMA access, descriptor-based packet handling, and checksum offload-making it suitable for vehicle networking and OTA update gateways.

How many CAN controllers are integrated into the TMS5703137CPGEQQ1, and what protocol versions do they support?

The TMS5703137CPGEQQ1 integrates three DCAN controllers, each compliant with the CAN 2.0B protocol specification. They support bit rates up to 1 Mbps, message filtering, FIFO buffering, and automatic retransmission. All three DCAN modules are accessible on the PGE package and can operate simultaneously-enabling redundant CAN buses or multi-domain communication (e.g., powertrain, chassis, body) within a single TMS5703137CPGEQQ1-based ECU.

What is the role of the N2HET modules in the TMS5703137CPGEQQ1, and how many channels do they provide?

The TMS5703137CPGEQQ1 includes two Next Generation High-End Timer (N2HET) modules: N2HET1 with 32 programmable channels and N2HET2 with 18 channels. These coprocessors execute timing-critical tasks-including PWM generation, input capture, output compare, and GPIO control-offloading the main CPU. Each N2HET has dedicated HTU and MPU, enabling safe, deterministic real-time actuator control essential for EPS, braking, and valve timing applications.

Is external memory supported by the TMS5703137CPGEQQ1, and if so, what types?

No, the TMS5703137CPGEQQ1 does not support external memory. Unlike the ZWT variant (TMS570LS3137ZWT), the PGE package omits the External Memory Interface (EMIF) signals. The TMS5703137CPGEQQ1 relies entirely on its integrated 3 MB flash and 256 KB RAM. This simplifies PCB design and improves reliability for space-constrained automotive modules where external memory expansion is unnecessary.