Texas Instruments TMS5701114CZWTQQ1

Overview

TMS5701114CZWTQQ1 from Texas Instruments is an automotive-grade 32-bit ARM Cortex-R4F safety microcontroller with dual-lockstep CPUs, 1 MB flash (ECC-protected), 128 KB RAM (ECC-protected), and integrated safety features including BIST, error signaling, and voltage/clock monitoring - deployed in electric power steering and ABS systems.

For engineers reviewing the TMS5701114CZWTQQ1 datasheet, TMS5701114CZWTQQ1 pinout, TMS5701114CZWTQQ1 application, or TMS5701114CZWTQQ1 equivalent, key selection criteria include ASIL-D compliance support, N2HET timing coprocessor count, ePWM/eCAP channel availability, CAN 2.0B interface count, and ZWT package ball-map compatibility for high-density PCB routing.

Technical Context

The TMS5701114CZWTQQ1 implements a dual-CPU lockstep architecture with real-time error detection via ECC on flash and RAM, parity on peripheral memories, and dedicated Error Signaling Module (ESM) with nERROR output. It uses FMPLL and non-modulating PLL for clock generation, supporting up to 180 MHz system frequency with 1.14–1.32 V core supply.

Its safety-critical peripherals include two N2HET modules (N2HET1: 32 channels; N2HET2: 18 channels), seven ePWM modules (14 outputs), six eCAP modules, two eQEP modules, and two 12-bit MibADCs (24 total inputs, 64-word parity-protected buffers each), all accessible through a switched central resource crossbar.

Key Specifications

Pinout & Package

The TMS5701114CZWTQQ1 is housed in a 337-ball NFBGA (ZWT) package measuring 16.0 mm × 16.0 mm, RoHS-compliant and qualified for automotive AEC-Q100 Grade 1 (−40°C to 125°C ambient).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS5701114CZWTQQ1, TMS570LS1227ZWT offers scalable memory while retaining pin-to-pin compatibility and identical safety architecture; TMS570LS3137ZWT adds networking peripherals but increases complexity and cost - making it suitable only where Ethernet or FlexRay are mandatory.

Availability

TMS5701114CZWTQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and battery management systems requiring stable component supply across automotive production lifecycles.

Supply support for TMS5701114CZWTQQ1 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 broad automotive qualification expertise.

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

FAQ

What safety certifications does the TMS5701114CZWTQQ1 support?

The TMS5701114CZWTQQ1 is architected to support ISO 26262 ASIL-D compliance through integrated features including dual-lockstep Cortex-R4F CPUs, ECC on flash and RAM, BIST for CPU and memory, ESM with nERROR output, and parity-protected peripheral memories. TI provides safety manuals, FMEDA reports, and diagnostic software libraries to accelerate certification - but final ASIL-D qualification is system-level and requires customer-specific integration validation. The TMS5701114CZWTQQ1 itself is AEC-Q100 Grade 1 qualified (−40°C to 125°C).

Does the TMS5701114CZWTQQ1 include hardware cryptographic acceleration?

No, the TMS5701114CZWTQQ1 does not include dedicated cryptographic hardware accelerators such as AES, SHA, or PKA engines. Its security features focus on functional safety (e.g., lockstep execution, ECC, BIST) rather than data confidentiality or integrity. Secure boot relies on software-implemented hash verification and flash read-protection via the Advanced JTAG Security Module (AJSM). For applications requiring hardware crypto, designers should consider companion secure elements or newer Hercules variants with optional crypto extensions.

What is the maximum operating temperature for the TMS5701114CZWTQQ1?

The TMS5701114CZWTQQ1 is rated for operation from −40°C to 125°C ambient temperature (AEC-Q100 Grade 1). This rating applies to the full specified electrical performance, including 180 MHz CPU operation, 3 MB/s CAN throughput, and 12-bit ADC conversion accuracy. Thermal derating is not required within this range, though board-level thermal design must ensure junction temperature remains below 150°C under worst-case power dissipation (typical max power ~1.2 W at 180 MHz, VCC = 1.2 V, VCCIO = 3.3 V).

Can the TMS5701114CZWTQQ1 support external memory expansion?

Yes, the TMS5701114CZWTQQ1 includes a 16-bit External Memory Interface (EMIF) supporting asynchronous SRAM, ROM, and FPGA peripherals with up to 32 KB addressable space. It provides EMIF_CLK, EMIF_nCS[4:0], EMIF_ADDR[12:0], EMIF_DATA[15:0], and control signals including EMIF_nOE, EMIF_nWE, EMIF_nRAS, and EMIF_nCAS. The interface operates at up to 66 MHz and supports programmable wait states - enabling direct connection to off-chip safety-monitoring co-processors or legacy EEPROMs without requiring external glue logic. The TMS5701114CZWTQQ1 EMIF does not support SDRAM or DDR.

How many CAN interfaces does the TMS5701114CZWTQQ1 provide?

The TMS5701114CZWTQQ1 integrates three fully independent DCAN controllers compliant with CAN 2.0A and 2.0B protocols, each supporting bit rates up to 1 Mbps and featuring 64 dedicated mailboxes with parity protection. All three CAN modules share no common registers or memory - enabling concurrent operation for chassis, powertrain, and body networks. Each DCAN includes built-in loopback mode for self-test and supports automatic retransmission, error counters, and interrupt-driven message handling. This matches the CAN count of the TMS5701114CZWTQQ1's pin-compatible sibling TMS570LS1227ZWT.