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Texas Instruments TMS5702125DZWTQQ1
- Part No.:
- TMS5702125DZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS5702125DZWTQQ1.pdf
- Description:
- IC MCU 16/32B 2MB FLASH 337NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
TMS5702125DZWTQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual lockstep ARM Cortex-R4F CPUs, 2MB ECC-protected flash, 192KB ECC-protected RAM, and integrated safety mechanisms including BIST, parity-protected peripherals, and error signaling for ASIL-D functional safety compliance. It targets real-time control in braking systems, electric power steering, and battery management.
For engineers reviewing the TMS5702125DZWTQQ1 datasheet, TMS5702125DZWTQQ1 pinout, TMS5702125DZWTQQ1 application, or TMS5702125DZWTQQ1 equivalent, key selection criteria include dual-CPU lockstep operation, 180 MHz clock speed, FlexRay + 3× CAN interfaces, N2HET timing coprocessors, and ISO 26262-ready safety architecture.
Technical Context
The TMS5702125DZWTQQ1 implements a dual-core lockstep execution model where both Cortex-R4F CPUs execute identical instructions and compare results in real time to detect transient or permanent faults. Its safety subsystem includes built-in self-test (BIST) for CPU and SRAM, ECC on flash and RAM, parity protection across peripheral memories (MibADC, N2HET, message RAM), and dedicated Error Signaling Module (ESM) with external ERROR pin assertion.
Timing and control are handled by two Next Generation High-End Timer (N2HET) modules - N2HET1 with 32 programmable channels and N2HET2 with 18 channels - each backed by a dedicated High-End Transfer Unit (HTU) and Memory Protection Unit (MPU). The device also integrates a Frequency-Modulated PLL (FMPLL), separate non-modulating FlexRay PLL, and 2× 12-bit MibADCs with 24 total channels and 64-word parity-protected buffers per module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F dual-core lockstep, 1.66 DMIPS/MHz @ up to 180 MHz → delivers 298 DMIPS deterministic performance with fault detection |
| Flash Memory | 2MB program flash with ECC → supports ASIL-D code storage with single-bit correction/double-bit detection |
| RAM | 192KB data RAM with ECC → enables safe real-time data buffering and stack/heap operations |
| Safety Features | Dual-CPU lockstep, CPU/RAM BIST, ECC, parity on peripheral RAMs, ESM with ERROR pin → certified for ISO 26262 ASIL-D applications |
| Communication | 3× DCAN (CAN 2.0B), 2× MibSPI, 1× LIN, 1× SCI, 1× I²C, 1× FlexRay (2-channel) → meets automotive networking redundancy and bandwidth requirements |
| Analog Peripherals | 2× 12-bit MibADCs (24-channel total, 64-word parity buffer each) → supports sensor acquisition with fault-tolerant conversion sequencing |
| Timing Coprocessors | N2HET1 (32 channels) + N2HET2 (18 channels) with HTUs and MPUs → offloads complex PWM, capture, GPIO timing from main CPU |
Pinout & Package
Package: 337-ball NFBGA (ZWT), 16.0 mm × 16.0 mm, RoHS-compliant green package with 0.8 mm ball pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Core power supply and ground | 1.2 V nominal core voltage domain with dedicated monitoring and reset generation on undervoltage |
| VCCIO, VSSIO | I/O power supply and ground | 3.3 V nominal I/O domain supporting 5-V tolerant ADC inputs and standard LVCMOS levels |
| VCCAD, VSSAD | ADC analog supply and ground | 3.0–5.25 V analog domain enabling direct connection to high-voltage sensors without level-shifting |
| nERROR | Error signaling output | Open-drain active-low pin asserted by ESM on detected fault - used for system-level fail-safe shutdown coordination |
| FRAY_TX1/FRAY_RX1 | FlexRay Channel 1 differential pair | High-speed (10 Mbps) deterministic communication interface with autonomous FTU-based memory transfers |
| CAN1_TX/CAN1_RX | Controller Area Network Channel 1 | Robust 1 Mbps serial bus interface compliant with ISO 11898-1, supporting automotive network diagnostics and control |
| N2HET1[31:0] | N2HET1 programmable I/O pins | 32 configurable pins supporting PWM generation, input capture, GPIO, or angle-sensor emulation via hardware generator |
| AD1IN[23:0] | MibADC1 analog input channels | 24-pin multiplexed analog input bank supporting simultaneous sampling and sequenced conversion with parity-protected result buffers |
Key Features
| Feature | Design Value |
|---|---|
| Dual lockstep Cortex-R4F CPUs | Hardware-enforced instruction-level comparison ensures continuous fault detection without software overhead |
| ECC-protected 2MB flash + 192KB RAM | Enables zero-latency correction of single-bit errors and detection of double-bit errors in safety-critical code/data |
| Two N2HET modules with HTUs | Offloads time-critical PWM, capture, and GPIO timing tasks while maintaining memory access isolation via dedicated MPUs |
| FlexRay + 3× CAN + LIN + SCI interfaces | Supports multi-protocol automotive networking stacks with hardware-accelerated message handling and transfer units |
| Integrated ESM with ERROR pin | Centralized fault aggregation and response - triggers interrupt or asserts external pin for fail-safe system reaction |
| 12-bit MibADC with 64-word parity buffers | Provides deterministic analog acquisition with built-in memory integrity checking for sensor signal chains |
Applications
| Braking Systems | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time hydraulic pressure modulation and wheel-speed-based slip control in ABS and ESC modules. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D brake actuation logic with lockstep CPU verification and fault-tolerant ADC sampling. Use Value: Enables certified fail-operational behavior through redundant computation, ECC memory, and immediate ESM-triggered shutdown on fault detection. | Use Scenario: Torque assist calculation, motor current control, and road feedback processing in column-assist and rack-assist EPS systems. IC Role / Device Role / Timing Role: Real-time motor control unit managing N2HET-driven PWM outputs, CAN-based vehicle bus integration, and MibADC-based torque/speed sensing. Use Value: Delivers sub-microsecond timing precision for field-oriented control loops while meeting ISO 26262 ASIL-D requirements via hardware safety mechanisms. |
| Battery Management Systems | Railway Communications |
Use Scenario: Cell voltage monitoring, thermal management, state-of-charge estimation, and contactor control in HEV/EV traction battery packs. IC Role / Device Role / Timing Role: Safety-certified BMS master controller interfacing with isolated ADCs, communicating over CAN/FlexRay, and enforcing fail-safe disconnection logic. Use Value: Guarantees integrity of critical battery parameters using ECC RAM, parity-protected MibADC buffers, and lockstep CPU validation of SOC algorithms. | Use Scenario: Onboard train control unit for signaling interlocking, door control, and PIS integration in EN 5012x-compliant railway systems. IC Role / Device Role / Timing Role: Deterministic safety controller executing SIL-4 logic with dual-CPU lockstep, ESM-monitored watchdogs, and redundant communication (CAN + FlexRay). Use Value: Meets CENELEC SIL-4 certification requirements through hardware BIST, memory ECC, and externally visible ERROR pin for system-level fail-safe response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS2135ZWTQQ1 | 2MB flash, 256KB ECC RAM (vs. 192KB), same ZWT package and pinout | Higher RAM headroom for larger safety stacks or extended diagnostic routines | Select when additional RAM is required for complex ASIL-D diagnostics or larger RTOS footprint |
| TMS570LS3135ZWTQQ1 | 3MB flash, 256KB ECC RAM, same ZWT package and pinout | Extended program storage for multi-application firmware or bootloader + application separation | Select when larger flash capacity is needed for secure boot, OTA updates, or dual-bank firmware |
Compared with TMS5702125DZWTQQ1, the TMS570LS2135ZWTQQ1 offers +64KB RAM for enhanced diagnostic memory, while the TMS570LS3135ZWTQQ1 adds +1MB flash for firmware flexibility - both retain identical safety architecture, peripheral set, and ZWT pin compatibility.
Availability
TMS5702125DZWTQQ1 is available at Aetrix Electronics and suitable for braking systems, electric power steering, and battery management requiring stable component supply across automotive production lifecycles.
Supply support for TMS5702125DZWTQQ1 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, embedded processing, and connectivity technologies with deep expertise in automotive safety microcontrollers.
The TMS570 family was designed specifically for ASIL-D automotive safety applications, integrating lockstep CPUs, memory ECC, BIST, and fault-signaling hardware to meet ISO 26262 requirements without external safety monitors.
FAQ
What safety certifications does the TMS5702125DZWTQQ1 support?
The TMS5702125DZWTQQ1 is architected to support ISO 26262 ASIL-D compliance through hardware features including dual lockstep Cortex-R4F CPUs, ECC on 2MB flash and 192KB RAM, CPU and memory BIST, parity-protected peripheral memories, and an Error Signaling Module with external ERROR pin. TI provides safety manuals, FMEDA reports, and diagnostic software libraries to accelerate functional safety certification of systems using the TMS5702125DZWTQQ1.
Does the TMS5702125DZWTQQ1 support FlexRay communication?
Yes, the TMS5702125DZWTQQ1 integrates a dual-channel FlexRay controller compliant with FlexRay v2.1, supporting deterministic 10 Mbps per channel communication. It includes a dedicated FlexRay Transfer Unit (FTU) for autonomous DMA-like transfers between FlexRay message RAM and main memory, with MPU protection ensuring memory access isolation - a key capability confirmed in the SPNS164C datasheet for the TMS5702125DZWTQQ1.
What is the maximum operating frequency of the TMS5702125DZWTQQ1?
The TMS5702125DZWTQQ1 operates at a maximum system clock frequency of 180 MHz, enabled by its Frequency-Modulated Phase-Locked Loop (FMPLL). This yields up to 298 DMIPS of deterministic performance from the ARM Cortex-R4F CPU core, as specified in the official Texas Instruments SPNS164C datasheet for the TMS5702125DZWTQQ1.
How many analog input channels does the TMS5702125DZWTQQ1 support?
The TMS5702125DZWTQQ1 integrates two 12-bit Multibuffered ADC (MibADC) modules supporting a total of 24 analog input channels - ADC1 provides 24 dedicated channels, while ADC2 shares 16 channels with ADC1. Each MibADC includes 64-word result buffers with parity protection, as documented in the TMS5702125DZWTQQ1 datasheet section 1.3 and Table 3-1.
Is the TMS5702125DZWTQQ1 pin-compatible with other TMS570 devices?
Yes, the TMS5702125DZWTQQ1 in the ZWT package is pin-compatible with TMS570LS2135ZWTQQ1 and TMS570LS3135ZWTQQ1 - all share the identical 337-ball NFBGA footprint, ball map, and signal assignments per TI's SPNS164C datasheet Section 4.2. This allows hardware reuse across variants differing only in flash (2MB vs. 3MB) and RAM (192KB vs. 256KB) configurations.
TMS5702125DZWTQQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 337-LFBGA
- Series:
- Hercules™ TMS570 ARM® Cortex®-R
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-R4F
- Core Size:
- 16/32-Bit
- Speed:
- 180MHz
- Connectivity:
- CANbus, EBI/EMI, FlexRay, 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:
TMS5702125DZWTQQ1 FAQ
1.How can I place an order for TMS5702125DZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5702125DZWTQQ1 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 TMS5702125DZWTQQ1 reliable?
The price and inventory of TMS5702125DZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5702125DZWTQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5702125DZWTQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5702125DZWTQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5702125DZWTQQ1?
TMS5702125DZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5702125DZWTQQ1 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 TMS5702125DZWTQQ1?
For technical support, including TMS5702125DZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5702125DZWTQQ1 requirements.
6.How does Aetrix verify that TMS5702125DZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5702125DZWTQQ1 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 TMS5702125DZWTQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5702125DZWTQQ1?
All TMS5702125DZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5702125DZWTQQ1, 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 TMS5702125DZWTQQ1 part is unused and in its original packaging.
Return procedure for TMS5702125DZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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