Texas Instruments TMX5700714PGEQQ1

Overview

TMX5700714PGEQQ1 from Texas Instruments is a dual-CPU lockstep ARM Cortex-R4F 32-bit safety MCU for automotive ASIL-D and industrial SIL-3 applications, operating up to 160 MHz with 768KB flash (ECC), 128KB RAM (ECC), and integrated diagnostics including BIST, voltage/clock monitoring, and error signaling. It delivers 265 DMIPS and supports real-time motor control in electric power steering systems.

For engineers reviewing the TMX5700714PGEQQ1 datasheet, TMX5700714PGEQQ1 pinout, TMX5700714PGEQQ1 application, or TMX5700714PGEQQ1 equivalent, this page provides verified technical context, functional safety architecture details, validated peripheral timing specs, and confirmed alternative options for ISO 26262-compliant system design.

Technical Context

The TMX5700714PGEQQ1 implements dual ARM Cortex-R4F CPUs executing identical instructions in lockstep with hardware comparator validation, enabling continuous fault detection. Its FMPLL generates internal clocks up to 160 MHz while supporting slip detection, and the Global Clock Module routes six clock sources across domains including CPU, peripheral, and real-time interrupt timers.

Functional safety is enforced via ECC on all flash and SRAM, parity protection on MibADC buffers, DMA control packet RAM, and N2HET instruction RAM, plus dedicated Error Signaling Module (ESM) with nERROR output. The device uses BE32 word-invariant endianness and supports memory-mapped peripherals through a switched central resource crossbar with arbitration.

Key Specifications

Pinout & Package

LQFP-144 (PGE) package with 20.0 mm × 20.0 mm body size, exposed thermal pad, and green RoHS-compliant finish. Pin functions include dual N2HET banks (N2HET1[0–31], N2HET2[0–17]), GIOA/GIOB general-purpose I/O (64 total, 16 interrupt-capable), and dedicated safety signals (nERROR, nPORRST, nRST).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMX5700714PGEQQ1, TMS570LS0432PZ reduces memory and I/O for lower-cost ASIL-B designs, while TMS570LS0914PGE adds flash headroom for complex safety stacks-neither offers pin compatibility, but both share the same safety architecture and peripheral register mapping.

Availability

TMX5700714PGEQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and HEV/EV inverter control requiring stable component supply across automotive production lifecycles.

Supply support for TMX5700714PGEQQ1 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 and embedded processing technologies, with leadership in automotive safety MCUs and functional safety certification expertise.

The Hercules TMS570 series, including TMX5700714PGEQQ1, was designed specifically for ISO 26262 ASIL-D and IEC 61508 SIL-3 applications, integrating lockstep CPUs, memory ECC, and hardware self-test to eliminate single points of failure.

FAQ

What safety certifications apply to the TMX5700714PGEQQ1?

The TMX5700714PGEQQ1 is qualified for automotive ASIL-D per ISO 26262 and industrial SIL-3 per IEC 61508. Texas Instruments provides certified safety manuals, FMEDA reports, and diagnostic software libraries to support functional safety development. TMX5700714PGEQQ1 incorporates dual lockstep CPUs, ECC memory, BIST, and ESM to meet these standards' diagnostic coverage requirements.

Does the TMX5700714PGEQQ1 support LIN communication?

Yes, the TMX5700714PGEQQ1 includes one SCI interface that supports Local Interconnect Network (LIN) 2.1 protocol in addition to standard UART operation. This SCI can be configured as a LIN master or slave for body electronics communication, with built-in break detection and sync field handling. TMX5700714PGEQQ1's LIN capability is implemented in hardware without CPU overhead.

How many CAN interfaces does the TMX5700714PGEQQ1 provide?

The TMX5700714PGEQQ1 integrates three DCAN controllers compliant with CAN 2.0A and 2.0B protocols, each supporting up to 1 Mbps data rates and 64 mailboxes with parity protection. These controllers operate independently and can be used for redundant vehicle networks, powertrain communication, or gateway functions. TMX5700714PGEQQ1's triple-CAN architecture enables fail-operational designs.

What is the maximum operating frequency of the TMX5700714PGEQQ1?

The TMX5700714PGEQQ1 operates at a maximum system clock frequency of 160 MHz, delivering up to 265 DMIPS performance from its dual ARM Cortex-R4F CPUs. This frequency is achieved using the Frequency-Modulated PLL (FMPLL) with slip detection, and requires core supply voltage between 1.14 V and 1.32 V. TMX5700714PGEQQ1 maintains full peripheral functionality-including all ePWM, N2HET, and ADC modules-at this speed.

Is the TMX5700714PGEQQ1 pin-compatible with other TMS570 devices?

No, the TMX5700714PGEQQ1 is not pin-compatible with other TMS570 family members due to unique signal assignments and package-specific pin multiplexing. While it shares the 144-pin PGE LQFP footprint with TMS570LS0914PGE, differences in peripheral allocation (e.g., N2HET pin mapping, GIO bank distribution) require board-level redesign. TMX5700714PGEQQ1's pinout is defined in Section 4.2.1 of its datasheet and must be verified against layout constraints.