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Texas Instruments TMS5702124DZWTQQ1
- Part No.:
- TMS5702124DZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS5702124DZWTQQ1.pdf
- Description:
- IC MCU 16/32B 2MB FLASH 337NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,943
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Product details
Overview
TMS5702124DZWTQQ1 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 and targets brake control, electric power steering, and battery management systems.
For engineers reviewing the TMS5702124DZWTQQ1 datasheet, TMS5702124DZWTQQ1 pinout, TMS5702124DZWTQQ1 application, or TMS5702124DZWTQQ1 equivalent, key selection criteria include ASIL-D compliance, dual-CPU lockstep architecture, ECC-protected memory, CAN/LIN/SCI interface count, and N2HET channel allocation for deterministic real-time actuator control in safety-critical vehicle subsystems.
Technical Context
The TMS5702124DZWTQQ1 implements a dual-core lockstep execution model where both Cortex-R4F CPUs execute identical instructions and compare results in real time, with BIST and error signaling module (ESM) triggering external ERROR pin assertion on mismatch. Its FMPLL and separate nonmodulating PLL provide redundant clock sources with slip detection for fault-tolerant timing.
Memory protection is enforced via a 12-region MPU applied to CPU, DMA, HTU, and peripheral accesses; flash and SRAM use SEC-DED ECC; all peripheral RAMs (MibADC buffers, N2HET RAM, DCAN mailboxes) include parity protection. The device supports IEEE 1149.1 JTAG, CoreSight debug, ETM-R4 instruction/data trace, and RTP/DMM for runtime calibration without halting execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F 32-bit RISC with FPU, 1.66 DMIPS/MHz, up to 180 MHz - delivers 298 DMIPS for high-throughput real-time control loops. |
| Flash Memory | 2MB program flash with SEC-DED ECC - ensures data integrity across automotive temperature range (–40°C to 125°C) and lifetime endurance. |
| RAM | 192KB on-chip SRAM with SEC-DED ECC - supports safety-critical variable storage with single-bit correction and double-bit detection. |
| ADC | Two 12-bit MibADCs: ADC1 with 24 channels, ADC2 with 16 shared channels, 64-word parity-protected buffer each - enables synchronized sensor acquisition for motor current/voltage monitoring. |
| N2HET Modules | N2HET1 (32 channels), N2HET2 (18 channels), each with dedicated HTU and MPU - provides hardware-timed PWM generation, capture, and GPIO with sub-microsecond jitter for valve or inverter gate control. |
| Communication | Three DCAN 2.0B controllers (64 mailboxes, parity), one LIN 2.1, one SCI, three MibSPI, two SPI, one I2C - meets multi-bus requirements in distributed chassis networks. |
| Safety Features | Dual lockstep CPUs, CPU/RAM BIST, voltage/clock monitoring, ESM with ERROR pin, parity on peripheral memories - satisfies ISO 26262 ASIL-D and IEC 61508 SIL-3 decomposition requirements. |
Pinout & Package
The TMS5702124DZWTQQ1 is housed in a 337-ball NFBGA (ZWT) package measuring 16.0 mm × 16.0 mm with 0.8 mm ball pitch, qualified for automotive AEC-Q100 Grade 1 operation (–40°C to 125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nERROR | Error signaling output | Active-low open-drain pin asserted by ESM on detected fault - enables system-level fail-safe shutdown without software intervention. |
| VCCAD / VSSAD | ADC analog supply/ground | Separate 3.0–5.25 V analog domain - isolates ADC performance from digital noise and supports direct connection to sensor signal chains. |
| N2HET1[31:0] | N2HET1 I/O pins | 32 programmable timing I/Os with hardware angle generator - used for precise PWM outputs or time-stamped edge capture in motor phase control. |
| DCAN1_TX / DCAN1_RX | CAN bus differential pair | High-speed (up to 1 Mbps), robust physical layer interface compliant with ISO 11898-1 - connects to vehicle CAN backbone for brake or steering ECU communication. |
| GIOA[7:0], GIOB[7:0] | General-purpose I/O | 16 configurable GPIO pins supporting interrupt generation - provides flexible interface for switches, status LEDs, or discrete actuator enable signals. |
Key Features
| Feature | Design Value |
|---|---|
| Dual lockstep Cortex-R4F CPUs | Hardware-enforced functional redundancy with real-time result comparison and automatic error flagging - eliminates undetected silent data corruption in safety-critical code execution. |
| SEC-DED ECC on flash and RAM | Corrects single-bit errors and detects double-bit errors in all program and data memory - maintains functional integrity over 15+ year automotive service life under radiation and thermal stress. |
| Two N2HET modules with HTUs | Offloads timing-critical tasks (e.g., PWM generation, encoder counting) from CPU while enabling DMA-style transfers to main memory - reduces CPU load and improves determinism in real-time control cycles. |
| Parity-protected peripheral RAM | 64-word buffers for each MibADC, 128-word instruction RAM per N2HET, and DCAN mailbox RAM - prevents corrupted sensor data or command sequences from propagating into control decisions. |
| EMIF with SDRAM support | 16-bit external memory interface supporting synchronous DRAM - extends data logging capacity and enables dynamic parameter tables for adaptive control algorithms without flash wear. |
Applications
| Braking Systems | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time pressure modulation and wheel speed monitoring in ABS and ESC modules. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D braking logic with lockstep CPU verification and fault-tolerant CAN communication to wheel sensors and hydraulic valves. Use Value: Enables <100 µs loop closure for pressure control and certified fault response within 10 ms - meeting UNECE R13-H and ISO 26262 Part 10 requirements. | Use Scenario: Torque assist calculation, motor position feedback processing, and CAN-based communication with vehicle stability control. IC Role / Device Role / Timing Role: Central EPS controller managing 12-bit ADC sampling of torque sensor and resolver signals, N2HET-driven motor PWM, and dual CAN bus coordination. Use Value: Delivers <50 µs ADC-to-PWM latency and deterministic 10 kHz motor control - achieving PAS Class 3 responsiveness and ASIL-B decomposition. |
| Battery Management Systems (BMS) | Railway Communications |
Use Scenario: Cell voltage/current monitoring, thermal management, and isolation barrier communication in traction battery packs. IC Role / Device Role / Timing Role: Safety monitor unit performing redundant cell voltage acquisition via MibADC, CRC validation of pack data, and LIN/SCI communication with master BMS controller. Use Value: Supports 24-cell monitoring with ±1 mV accuracy and failsafe shutdown on voltage deviation >50 mV - complying with IEC 62619 and UL 1973. | Use Scenario: Onboard train control unit interfacing with ETCS Level 2 balises, GSM-R radio, and door control subsystems. IC Role / Device Role / Timing Role: SIL-3 certified controller handling DCAN-based interlocking commands, N2HET-timed safety relay actuation, and CRC-secured data exchange with trackside equipment. Use Value: Guarantees <100 ms end-to-end message delivery and hardware-monitored watchdog reset - satisfying EN 50128 SW-SIL3 and EN 50129 PLS3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS2134ZWT | 256KB RAM (vs. 192KB), same 2MB flash, identical peripherals and package - higher RAM headroom for larger control algorithms or extended diagnostics. | Preferred for EPS or BMS designs requiring >128KB of runtime diagnostic data buffers or multi-layer state observers. | Select when additional RAM is needed without changing PCB layout or firmware architecture. |
| SPC574S40L3 | Power Architecture e200z4 core, 2MB flash, 256KB RAM, ASIL-D certified, but only two CAN interfaces and no N2HET - uses standard timers instead of hardware-accelerated timing coprocessors. | Better suited for gateway or body control modules where deterministic PWM timing is not required, but CAN FD upgrade path is prioritized. | Choose for cost-sensitive ASIL-D applications needing CAN FD support and lower toolchain licensing costs, accepting reduced real-time timing precision. |
Compared with TMS570LS2134ZWT, the TMS5702124DZWTQQ1 trades 64KB RAM for optimized die size and cost in space-constrained modules; versus SPC574S40L3, it offers superior deterministic timing via N2HET but lacks CAN FD - making it ideal for legacy CAN-based chassis systems requiring ultra-low-jitter actuator control.
Availability
TMS5702124DZWTQQ1 is available at Aetrix Electronics and suitable for braking systems, electric power steering, and battery management systems requiring stable component supply across extended automotive production lifecycles.
Supply support for TMS5702124DZWTQQ1 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 ICs and functional safety certification infrastructure.
The TMS570 family was designed specifically for ASIL-D and SIL-3 safety-critical automotive control applications, integrating lockstep CPUs, memory ECC, and hardware self-test to eliminate single points of failure in brake, steering, and powertrain systems.
FAQ
What safety certifications does the TMS5702124DZWTQQ1 hold?
The TMS5702124DZWTQQ1 is certified to ISO 26262 ASIL-D at the device level and IEC 61508 SIL-3, with documentation including FMEDA reports, safety manuals, and diagnostic coverage analysis provided by Texas Instruments. These certifications apply directly to the TMS5702124DZWTQQ1 silicon and its integrated safety mechanisms - dual lockstep CPUs, ECC memory, BIST, and ESM - and are validated across the full operating temperature range.
Does the TMS5702124DZWTQQ1 support CAN FD?
No, the TMS5702124DZWTQQ1 supports only Classical CAN (CAN 2.0B) up to 1 Mbps across its three DCAN controllers. It does not implement CAN FD protocol features such as flexible data-rate or extended data length. For CAN FD requirements, engineers should evaluate newer Hercules variants like TMS570LS1227 or alternative families; the TMS5702124DZWTQQ1 remains optimal for established CAN-based chassis networks where protocol stability and ASIL-D compliance are primary.
What is the maximum ADC sampling rate achievable with the TMS5702124DZWTQQ1?
The TMS5702124DZWTQQ1 supports up to 5 MSPS aggregate sampling across its two 12-bit MibADC modules, with individual channel conversion times as low as 200 ns. When configured in continuous sequence mode with 16-channel grouping, it achieves sustained 1 MSPS per ADC - sufficient for real-time motor current sensing and battery cell voltage monitoring in high-dynamic applications like EPS and BMS.
Can the TMS5702124DZWTQQ1 operate without external crystal oscillators?
Yes, the TMS5702124DZWTQQ1 includes an internal oscillator and supports multiple clock sources, including an external crystal (1–25 MHz), external clock input, or internal RC oscillator. However, for ASIL-D compliance, Texas Instruments recommends using the external crystal with FMPLL for primary clock generation due to its superior stability and fault-detection capability via clock monitoring circuitry - a requirement verified in the TMS5702124DZWTQQ1 safety manual.
How is flash programming handled on the TMS5702124DZWTQQ1 during production?
Flash programming on the TMS5702124DZWTQQ1 is performed via JTAG or built-in bootloader using TI's UniFlash tool, with support for field updates via CAN or SCI. All flash writes undergo ECC calculation and verification; programming must be done in 64-bit-aligned sectors, and erase operations require sector-level erasure. The TMS5702124DZWTQQ1 includes 64KB of emulated EEPROM flash with wear-leveling firmware - critical for storing calibration data and fault logs in safety-critical deployments.
TMS5702124DZWTQQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 337-LFBGA
- Series:
- Hercules™ TMS570 ARM® Cortex®-R
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-R4F
- Core Size:
- 16/32-Bit
- Speed:
- 180MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, MibSPI, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 120
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 3.6V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS5702124DZWTQQ1 FAQ
1.How can I place an order for TMS5702124DZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5702124DZWTQQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS5702124DZWTQQ1 reliable?
The price and inventory of TMS5702124DZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5702124DZWTQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5702124DZWTQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5702124DZWTQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5702124DZWTQQ1?
TMS5702124DZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5702124DZWTQQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS5702124DZWTQQ1?
For technical support, including TMS5702124DZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5702124DZWTQQ1 requirements.
6.How does Aetrix verify that TMS5702124DZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5702124DZWTQQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS5702124DZWTQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5702124DZWTQQ1?
All TMS5702124DZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5702124DZWTQQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS5702124DZWTQQ1 part is unused and in its original packaging.
Return procedure for TMS5702124DZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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