Texas Instruments TMS5702124CZWTQQ1

Overview

TMS5702124CZWTQQ1 from Texas Instruments is a safety-certified 32-bit ARM Cortex-R4F microcontroller for automotive ASIL-D and IEC 61508 SIL-3 applications, featuring dual lockstep CPUs, 2MB flash with ECC, 192KB RAM with ECC, three DCAN controllers, two 12-bit MibADCs (24-channel total), and two N2HET timing coprocessors (32+18 channels). It operates at up to 180 MHz with 1.2 V core supply and 3.3 V I/O supply, targeting brake control and electric power steering systems.

For engineers reviewing the TMS5702124CZWTQQ1 datasheet, TMS5702124CZWTQQ1 pinout, TMS5702124CZWTQQ1 application, or TMS5702124CZWTQQ1 equivalent, key selection criteria include ASIL-D compliance, integrated BIST and error signaling, FMPLL clocking with slip detection, EMIF support for external memory expansion, and trace/debug capabilities including ETM-R4 and RTP.

Technical Context

The TMS5702124CZWTQQ1 implements a dual-CPU lockstep architecture with hardware BIST for CPU and SRAM, ECC on flash and RAM, parity protection on peripheral memories, and loopback-capable I/O for fault containment. Its safety subsystem includes an Error Signaling Module (ESM) that drives the dedicated nERROR pin upon detected faults.

It integrates two Next Generation High-End Timer (N2HET) modules: N2HET1 with 32 programmable channels and N2HET2 with 18 channels, each backed by a dedicated HTU with MPU and hardware angle generator. The device supports CAN 2.0B (up to 1 Mbps), LIN 2.1, SCI, I²C, and three MibSPI interfaces - all with parity or CRC protection where applicable.

Key Specifications

Pinout & Package

Package: 337-ball NFBGA (ZWT), 16.0 mm × 16.0 mm, 0.8 mm pitch, green RoHS-compliant package. Ball map defined per TI SPNS165B Section 4.1 (ZWT BGA Package Ball-Map).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS5702124CZWTQQ1, TMS570LS2134ZWT offers more RAM for complex diagnostics without changing layout or firmware architecture, while SPC574K72E5 trades N2HET timing flexibility for broader AUTOSAR ecosystem support - making TMS5702124CZWTQQ1 optimal for N2HET-dependent motor control and actuator timing.

Availability

TMS5702124CZWTQQ1 is available at Aetrix Electronics and suitable for automotive braking systems, electric power steering, and battery management systems requiring stable component supply across long production lifecycles and rigorous qualification standards.

Supply support for TMS5702124CZWTQQ1 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 microcontrollers and functional safety certification.

The TMS570LS21x4 product line was designed specifically for ASIL-D automotive safety applications - integrating lockstep CPUs, memory ECC, hardware BIST, and safety-focused peripherals to reduce system-level certification effort.

FAQ

What safety certifications does the TMS5702124CZWTQQ1 hold?

The TMS5702124CZWTQQ1 is certified to ISO 26262 ASIL-D at the hardware level and IEC 61508 SIL-3. Certification evidence includes FMEDA reports, safety manuals, and diagnostic coverage analysis provided by Texas Instruments. These apply directly to the TMS5702124CZWTQQ1 silicon and its integrated safety mechanisms - lockstep CPU, ECC, BIST, and ESM - as documented in TI's TMS570 Functional Safety Package.

Does the TMS5702124CZWTQQ1 support external memory expansion?

Yes, the TMS5702124CZWTQQ1 includes a 16-bit External Memory Interface (EMIF) supporting synchronous DRAM (SDRAM), asynchronous SRAM/ROM, and FPGA peripherals. This interface is fully integrated into the safety architecture - with dedicated MPU protection and parity-checked control paths - allowing safe extension of program or data space beyond on-chip limits in the TMS5702124CZWTQQ1 design.

How many CAN interfaces does the TMS5702124CZWTQQ1 provide, and what protocol versions are supported?

The TMS5702124CZWTQQ1 integrates three DCAN controllers compliant with CAN Protocol Version 2.0B, supporting both standard (11-bit) and extended (29-bit) identifier frames at bit rates up to 1 Mbps. Each DCAN has 64 mailboxes with parity protection and full message filtering - enabling concurrent communication on multiple vehicle networks without software arbitration in the TMS5702124CZWTQQ1 implementation.

What is the role of the N2HET modules in the TMS5702124CZWTQQ1, and how are they configured?

The TMS5702124CZWTQQ1 includes two Next Generation High-End Timer (N2HET) modules: N2HET1 (32 channels) and N2HET2 (18 channels). Each is a programmable timing coprocessor with its own instruction set, HTU, and MPU. They execute offloaded tasks like PWM generation, input capture, and GPIO sequencing - freeing the Cortex-R4F CPU for higher-layer safety logic while maintaining deterministic timing in the TMS5702124CZWTQQ1 system.

Is the TMS5702124CZWTQQ1 pin-compatible with other devices in the TMS570LS21x4 family?

Yes, the TMS5702124CZWTQQ1 in the ZWT package shares identical pinout and ball mapping with TMS570LS2134ZWT and TMS570LS3134ZWT - enabling drop-in replacement within the same package variant. This allows scalable memory selection (192KB vs. 256KB vs. 256KB RAM) without PCB redesign, preserving layout, signal integrity, and thermal performance across the TMS5702124CZWTQQ1 and compatible variants.