Texas Instruments TMS5702124DPGEQQ1

Overview

TMS5702124DPGEQQ1 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. It operates at up to 160 MHz core frequency 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 TMS5702124DPGEQQ1 datasheet, TMS5702124DPGEQQ1 pinout, TMS5702124DPGEQQ1 application, or TMS5702124DPGEQQ1 equivalent, key selection criteria include ASIL-D compliance evidence, lockstep CPU diagnostic coverage, FMPLL clock monitoring, N2HET channel count (N2HET1: 32 channels, N2HET2: 18 channels), and PGE package pin compatibility with existing LQFP-144 layouts.

Technical Context

The TMS5702124DPGEQQ1 implements a dual-core lockstep architecture where both Cortex-R4F CPUs execute identical instructions with cycle-by-cycle comparison; mismatch triggers ESM fault signaling. Its safety infrastructure includes BIST for CPU and SRAM, ECC on flash/RAM, parity on peripheral memories, and loopback-capable I/O for end-to-end path validation.

Real-time control is enabled by two independent N2HET modules-N2HET1 with 32 programmable channels and N2HET2 with 18-each paired with dedicated HTU DMA engines and MPU-protected memory access. The device supports CAN 2.0B at up to 1 Mbps, LIN 2.1, and dual 12-bit MibADCs with 64-word parity-protected buffers per module.

Key Specifications

Pinout & Package

Package: LQFP-144 (PGE), 20.0 mm × 20.0 mm body, 0.5 mm pitch, green RoHS-compliant. Pinout validated per TI SPNS165B Rev May 2015, Table 4-2 (PGE Terminal Functions) and Figure 4-1 (PGE Ball Map).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS5702124DPGEQQ1, TMS570LS2134PGE offers more RAM in identical packaging for enhanced diagnostic depth, while SPC574K72E5 provides higher clock speed and eTPU-based motor timing but requires architectural revalidation and lacks lockstep ARM cores.

Availability

TMS5702124DPGEQQ1 is available at Aetrix Electronics and suitable for braking systems, electric power steering, and battery management systems requiring stable component supply across automotive production lifecycles.

Supply support for TMS5702124DPGEQQ1 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal processing technologies with broad automotive, industrial, and communications focus.

The TMS570 Hercules™ family was designed specifically for functional safety-critical automotive and industrial applications, emphasizing ASIL-D and SIL-3 compliance through integrated hardware safety mechanisms and certified development processes.

FAQ

What safety certifications apply to the TMS5702124DPGEQQ1?

The TMS5702124DPGEQQ1 is qualified for automotive applications per AEC-Q100 Grade 1 (−40°C to +125°C) and supports ISO 26262 ASIL-D system-level implementation when used with TI's SafeTI™ diagnostic software library and certified development flow. It includes hardware features required for IEC 61508 SIL-3, including lockstep CPUs, ECC memory, and BIST. Certification evidence is documented in TI's Functional Safety Documentation Package for TMS570LS21x4 devices, not inherent to the silicon alone.

Does the TMS5702124DPGEQQ1 support external memory expansion?

No, the TMS5702124DPGEQQ1 does not support external memory expansion. Unlike the ZWT-package variants (e.g., TMS570LS2124ZWT), the PGE package version omits the External Memory Interface (EMIF) signals. This is confirmed in TI SPNS165B Section 4.2 and Table 3-1, where EMIF is marked "–" for all PGE variants. System design must rely solely on the integrated 2MB flash and 192KB RAM.

How many CAN interfaces does the TMS5702124DPGEQQ1 include, and what protocol versions are supported?

The TMS5702124DPGEQQ1 includes three DCAN controllers compliant with CAN Protocol Version 2.0B, supporting both standard (11-bit) and extended (29-bit) identifier formats. Each DCAN has 64 mailboxes with parity protection and supports bit rates up to 1 Mbps. These controllers operate independently and can be configured for redundancy, diagnostics, or multi-bus networking in safety-critical domains like chassis control.

What is the maximum operating frequency of the TMS5702124DPGEQQ1, and how is it achieved?

The TMS5702124DPGEQQ1 operates at a maximum core frequency of 160 MHz, as specified in TI SPNS165B Table 3-1 for LS21xx PGE variants. This is achieved using the Frequency-Modulated Phase-Locked Loop (FMPLL) clock module, which multiplies an external crystal or oscillator input. The FMPLL includes a built-in slip detector for continuous clock health monitoring, and the Global Clock Module routes the stabilized clock to the Cortex-R4F cores and peripherals.

Can the TMS5702124DPGEQQ1's N2HET modules drive motor gate drivers directly?

Yes, the N2HET modules in the TMS5702124DPGEQQ1 can directly drive motor gate drivers via configured output compare or PWM channels. N2HET1 provides 32 programmable channels and N2HET2 provides 18, each supporting programmable dead-time insertion, edge alignment, and hardware angle generation. When paired with external gate drivers (e.g., UCC27531), they deliver precise, jitter-free timing for BLDC or PMSM motor control without CPU intervention.