Texas Instruments TMS5702125CPGEQQ1

Overview

TMS5702125CPGEQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual lockstep ARM Cortex-R4F CPUs, 2MB ECC-protected flash, 192KB ECC-protected RAM, and integrated safety features including BIST, parity-protected peripherals, and error signaling for ASIL-D systems. It targets brake control, electric power steering, and battery management in harsh environments.

For engineers reviewing the TMS5702125CPGEQQ1 datasheet, TMS5702125CPGEQQ1 pinout, TMS5702125CPGEQQ1 application, or TMS5702125CPGEQQ1 equivalent, key selection criteria include functional safety certification (ISO 26262), dual-CPU lockstep execution, FlexRay/CAN/LIN interface support, N2HET timer resolution, and 144-pin LQFP package compatibility with industrial temperature range (-40°C to 125°C).

Technical Context

The device implements a dual-core lockstep architecture where both Cortex-R4F CPUs execute identical instructions and compare results in real time; mismatch triggers ESM fault response. Memory subsystem includes ECC on flash and RAM, parity on peripheral memories (MibADC buffers, N2HET RAM, message RAM), and dedicated MPUs for DMA, HTU, and FTU.

Real-time peripherals include two N2HET modules (N2HET1 with 32 channels, N2HET2 with 18 channels), two 12-bit MibADCs (24 total inputs, 64-word parity-protected buffers each), three DCAN controllers compliant with CAN 2.0B up to 1 Mbps, and a dual-channel FlexRay controller with autonomous FTU transfers.

Key Specifications

Pinout & Package

The TMS5702125CPGEQQ1 uses a 144-pin LQFP (PGE) package with 0.5 mm pitch, designed for automotive PCB layouts requiring thermal robustness and mechanical reliability under vibration and thermal cycling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS5702125CPGEQQ1, TMS570LS2135PGE offers +64KB RAM in identical packaging for enhanced diagnostic depth, while SPC574K72E5 provides architectural divergence with Ethernet and AUTOSAR support-neither is pin-compatible, but both serve overlapping ASIL-D automotive domains with distinct ecosystem trade-offs.

Availability

TMS5702125CPGEQQ1 is available at Aetrix Electronics and suitable for braking systems, electric power steering, and battery management requiring stable component supply across automotive production lifecycles.

Supply support for TMS5702125CPGEQQ1 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 company specializing in analog, embedded processing, and automotive ICs, with leadership in functional safety microcontrollers and automotive signal chain solutions.

The TMS570 family was designed specifically for ASIL-D automotive safety applications, integrating lockstep CPUs, memory ECC, and hardware self-test to meet ISO 26262 requirements without external safety monitors.

FAQ

What safety certifications does the TMS5702125CPGEQQ1 hold?

The TMS5702125CPGEQQ1 is qualified to AEC-Q100 Grade 1 and supports ISO 26262 ASIL-D system-level development. Its dual lockstep CPU, ECC memory, BIST logic, and error signaling module provide the hardware foundation required for ASIL-D decomposition. TI provides FMEDA reports, safety manuals, and diagnostic software libraries to accelerate certification-TMS5702125CPGEQQ1 itself is not "certified" as a standalone component but is architected for use in ASIL-D systems.

Does the TMS5702125CPGEQQ1 support external memory expansion?

Yes, the TMS5702125CPGEQQ1 includes a 16-bit External Memory Interface (EMIF) supporting connection to SDRAM, SRAM, Flash, and FPGA devices. The EMIF provides address/data multiplexing, programmable timing parameters, and bank-select logic. It operates independently of the CPU core, allowing background memory transfers without impacting real-time control loops-critical for TMS5702125CPGEQQ1 applications like logging or firmware updates.

How many CAN interfaces does the TMS5702125CPGEQQ1 integrate?

The TMS5702125CPGEQQ1 integrates three DCAN controllers compliant with CAN 2.0B protocol, each supporting bit rates up to 1 Mbps. All three controllers feature message objects with parity protection, transmit/receive FIFOs, and automatic retransmission. They are fully independent and can operate simultaneously on separate buses-enabling TMS5702125CPGEQQ1 to serve as central gateway in multi-domain vehicle networks (e.g., chassis, powertrain, body).

What is the maximum operating frequency of the TMS5702125CPGEQQ1?

The TMS5702125CPGEQQ1 operates at a maximum system clock frequency of 160 MHz, delivering up to 198 DMIPS performance. This frequency is achieved using the Frequency-Modulated PLL (FMPLL) with external crystal reference. The device maintains full functionality-including ECC checking, N2HET timing, and ADC sampling-at this speed across its full -40°C to +125°C temperature range, as validated in TMS5702125CPGEQQ1 production testing.

Is the TMS5702125CPGEQQ1 pin-compatible with other TMS570 family members in the PGE package?

Yes, all TMS570LS21x5 and TMS570LS31x5 variants in the 144-pin PGE package-including TMS570LS2125PGE, TMS570LS2135PGE, and TMS570LS3135PGE-are pin-compatible. Pin functions, power domains, and peripheral mappings are identical; only flash/RAM capacities and certain peripheral configurations differ. This allows hardware reuse across safety tiers-TMS5702125CPGEQQ1 shares the same PCB footprint as higher-memory variants for scalable design.