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Texas Instruments TMS5701224BZWTQQ1
- Part No.:
- TMS5701224BZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS5701224BZWTQQ1.pdf
- Description:
- IC MCU 32BIT 1.25MB FLASH 337BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,240
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Product details
Overview
TMS5701224BZWTQQ1 from Texas Instruments is an automotive-grade 32-bit RISC microcontroller built on the ARM Cortex-R4F core, featuring dual lockstep CPUs, 1.25MB ECC-protected flash, 192KB ECC RAM, and integrated safety mechanisms including BIST, ESM, and voltage/clock monitoring - deployed in electric power steering and ABS systems.
For engineers reviewing the TMS5701224BZWTQQ1 datasheet, TMS5701224BZWTQQ1 pinout, TMS5701224BZWTQQ1 application, or TMS5701224BZWTQQ1 equivalent, key selection criteria include ASIL-D compliance support, N2HET timing coprocessor configuration, ePWM trip-zone integration with MibADC, and ZWT 337-ball BGA package compatibility for high-density automotive control boards.
Technical Context
The TMS5701224BZWTQQ1 implements a dual-core lockstep architecture where both Cortex-R4F CPUs execute identical instructions with real-time comparison to detect transient or permanent faults. Its safety subsystem includes dedicated Error Signaling Module (ESM) with nERROR output, memory protection unit (MPU), and parity/ECC coverage across flash, RAM, and peripheral memories.
Real-time control is enabled by two independent N2HET modules (32 + 18 programmable channels), seven ePWM modules with deadband and trip-zone logic, six eCAP units, two eQEP interfaces, and dual 12-bit MibADCs (24 total inputs, 64-word parity-protected buffers). All peripherals support functional safety diagnostics via loopback, CRC, and configurable interrupt vectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F, 1.66 DMIPS/MHz, up to 180 MHz - delivers deterministic 298 DMIPS for time-critical motor control loops. |
| Memory | 1.25MB flash with ECC + 192KB SRAM with ECC + 64KB emulated EEPROM with ECC - ensures data integrity in safety-critical firmware and calibration storage. |
| Safety Features | Dual lockstep CPUs, CPU/RAM BIST, ESM with nERROR pin, voltage/clock monitors - meets ISO 26262 ASIL-D requirements without external safety monitor. |
| Timing Peripherals | N2HET1 (32 channels) + N2HET2 (18 channels), 7× ePWM, 6× eCAP, 2× eQEP - enables precise sensor acquisition, actuator drive, and position feedback in EPS and inverter systems. |
| Analog Interface | Two 12-bit MibADCs: ADC1 (24-channel), ADC2 (16 shared), 64-word parity-protected buffers - supports simultaneous sampling of motor phase currents and temperature sensors. |
| Communication | 3× DCAN (CAN 2.0B, up to 1 Mbps), 3× MibSPI, 2× SPI, 2× SCI (1 with LIN 2.1), 1× I2C - provides redundant, noise-immune bus connectivity for distributed vehicle ECUs. |
| Package | 337-ball NFBGA (ZWT), 16.0 mm × 16.0 mm, 0.8 mm pitch - optimized for thermal performance and PCB routing density in under-hood automotive modules. |
Pinout & Package
Package: 337-ball NFBGA (ZWT), green RoHS-compliant, 16.0 mm × 16.0 mm body size, 0.8 mm ball pitch, standard JEDEC MO-275AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VCCIO, VCCAD, VSS, VSSAD | Power and ground domains | Separated supply domains (core 1.14–1.32 V, I/O 3.0–3.6 V, analog 3.3 V) enable noise isolation and independent power sequencing per ISO 26262 requirements. |
| nERROR, nRST, nPORRST | Fault and reset signaling | nERROR is active-low safety fault indicator tied to ESM; nRST enables warm reset; nPORRST asserts on power-on reset - all support fail-safe system shutdown. |
| CAN1_TX / CAN1_RX, CAN2_TX / CAN2_RX, CAN3_TX / CAN3_RX | CAN bus transceiver interface | Three independent differential CAN physical layer interfaces compliant with ISO 11898-1, supporting concurrent communication on chassis, powertrain, and ADAS networks. |
| N2HET1[31:0], N2HET2[17:0] | High-end timer I/O terminals | 44 dedicated N2HET pins support programmable waveform generation, edge capture, and GPIO - used for resolver excitation, PWM modulation, and encoder signal conditioning. |
| ePWMxA / ePWMxB, nTZ[3:1] | Motor control PWM outputs & trip inputs | Seven ePWM modules provide complementary high-side/low-side gate drive signals with hardware-enforced deadtime and synchronous trip-zone shutdown for IGBT/MOSFET protection. |
| AD1IN[23:0], AD2IN[15:0] | Analog input multiplexing | 24 total ADC input pins (16 shared between MibADC1/2) support flexible sensor mapping - e.g., three-phase current sensing + DC-link voltage + temperature monitoring in single inverter design. |
Key Features
| Feature | Design Value |
|---|---|
| Dual lockstep Cortex-R4F CPUs | Hardware-level fault detection with zero-latency comparison - eliminates need for external safety MCU in ASIL-D architectures. |
| ECC on flash and RAM | Single-bit error correction and double-bit error detection across all program/data memory - prevents silent data corruption in long-life automotive deployments. |
| N2HET timing coprocessors | Two independent programmable timers (32 + 18 channels) offload CPU from real-time waveform generation and event capture - reduces jitter in motor commutation timing. |
| ePWM with integrated trip zone | Hardware-triggered immediate PWM disable upon overcurrent or overtemperature - protects power stage without software intervention delay. |
| MibADC with parity-protected buffers | 64-word result buffer per ADC with parity bits - enables reliable high-speed sampling of critical motor control parameters even under EMI stress. |
| DCAN controllers (3x) | Full CAN 2.0A/B compliance with 1 Mbps rate and message filtering - supports robust communication in noisy engine bay environments. |
Applications
| Electric Power Steering (EPS) | Braking Systems (ABS/ESC) |
|---|---|
|
Use Scenario: Real-time torque assist calculation and brushless motor commutation in column-assist and rack-assist EPS modules. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lockstep CPU verification and N2HET-driven resolver excitation. Use Value: Enables <10 µs PWM update latency and hardware trip response to prevent unintended steering actuation during fault conditions. |
Use Scenario: Closed-loop wheel speed monitoring, hydraulic pressure control, and yaw stability intervention in four-channel ABS/ESC ECUs. IC Role / Device Role / Timing Role: Central safety processor managing eQEP-based wheel speed acquisition, ePWM-driven solenoid valve control, and DCAN network coordination. Use Value: Guarantees <50 µs end-to-end control loop latency with ECC-protected ADC results and lockstep CPU validation for brake-by-wire readiness. |
| HEV/EV Inverter Control | Railway Traction Control |
|
Use Scenario: Three-phase inverter gate drive, DC-link voltage regulation, and thermal management in hybrid/electric vehicle traction inverters. IC Role / Device Role / Timing Role: High-reliability motor controller interfacing with isolated gate drivers via ePWM, acquiring current/voltage via MibADC, and communicating via DCAN. Use Value: Supports 16 kHz switching frequency with synchronized ADC sampling and hardware trip-zone shutdown to protect IGBTs during short-circuit events. |
Use Scenario: Traction motor control and braking energy recovery in main converter units of modern locomotives and metro trains. IC Role / Device Role / Timing Role: SIL-3 certified controller executing torque vectoring, slip/slide detection, and interlocking logic using dual N2HET modules and eQEP feedback. Use Value: Delivers deterministic 200 µs control cycle with ECC memory and lockstep execution - meeting EN 50128/50129 functional safety certification requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS1227ZWT | Same ZWT package, identical peripherals, but 1280 KB flash (vs. 1280 KB in TMS5701224BZWTQQ1 - note: datasheet confirms TMS570LS1224ZWT = 1.25 MB = 1280 KB); no EMAC or FlexRay. | Targeted at same automotive safety domains but with larger flash allocation for complex diagnostic stacks or OTA update partitions. | Select when firmware image size exceeds 1.25 MB or when future feature expansion requires additional nonvolatile storage. |
| SPC574K72E5 | 32-bit Power Architecture core (e200z4), 2 MB flash, 384 KB RAM, ASIL-D certified, but lacks N2HET and uses different ADC/ePWM architecture. | Used in European OEM powertrain ECUs; supports AUTOSAR OS but requires different driver abstraction layer than TI's HAL. | Choose for AUTOSAR-compliant designs requiring multi-core lockstep and higher flash density, accepting architectural rework for peripheral drivers. |
Compared with TMS5701224BZWTQQ1, TMS570LS1227ZWT offers identical safety architecture and pinout but targets larger firmware footprints, while SPC574K72E5 provides broader AUTOSAR support and higher memory capacity at the cost of TI-specific peripheral compatibility and toolchain continuity.
Availability
TMS5701224BZWTQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and HEV/EV inverter applications requiring stable component supply across extended automotive lifecycles (15+ years).
Supply support for TMS5701224BZWTQQ1 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 digital signal processing technologies, with deep expertise in automotive safety microcontrollers and functional safety certification.
The TMS570 family was designed specifically for ASIL-D automotive safety applications, integrating lockstep CPUs, memory ECC, and self-test logic to eliminate external safety monitors in critical control systems.
FAQ
What safety certifications does the TMS5701224BZWTQQ1 support?
The TMS5701224BZWTQQ1 is qualified for automotive applications per AEC-Q100 Grade 1 and supports ISO 26262 ASIL-D development workflows. It includes integrated safety mechanisms - dual lockstep CPUs, memory BIST, ECC on flash and RAM, ESM with nERROR output, and voltage/clock monitors - enabling certified safety islands without external redundancy. TI provides FMEDA reports and safety manuals for TMS5701224BZWTQQ1 to support customer certification efforts.
Does the TMS5701224BZWTQQ1 support CAN FD or only classical CAN?
The TMS5701224BZWTQQ1 integrates three DCAN controllers compliant with CAN 2.0A and 2.0B protocols only, supporting bit rates up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD requirements, designers must select newer Hercules families like TMS570LC4357 or migrate to TI's AM263x series. The TMS5701224BZWTQQ1 remains optimal for legacy and cost-sensitive ASIL-D CAN networks.
What is the maximum operating frequency and power supply range for the TMS5701224BZWTQQ1?
The TMS5701224BZWTQQ1 operates at up to 180 MHz system clock frequency. Its core supply (VCC) ranges from 1.14 V to 1.32 V, I/O supply (VCCIO) from 3.0 V to 3.6 V, and analog supply (VCCAD/VSSAD) at 3.3 V nominal. These tightly regulated domains ensure signal integrity and safety compliance across -40°C to +125°C ambient operation - validated per AEC-Q100 stress testing. All supplies require external regulation per TI's power sequencing guidelines.
How many N2HET channels does the TMS5701224BZWTQQ1 provide, and are they configurable?
The TMS5701224BZWTQQ1 includes two Next Generation High-End Timer (N2HET) modules: N2HET1 with 32 programmable channels and N2HET2 with 18 channels, totaling 44 I/O-capable terminals. Each channel is software-configurable for PWM generation, input capture, compare output, or general-purpose I/O. Both modules feature dedicated HTU DMA units and MPU-protected memory access - essential for resolver excitation, encoder interpolation, and time-critical actuator control in TMS5701224BZWTQQ1-based systems.
Is the TMS5701224BZWTQQ1 pin-compatible with other TMS570LS1224 variants?
Yes - the TMS5701224BZWTQQ1 shares identical pinout and ball map with the TMS570LS1224ZWT (non-Q1) and TMS570LS1224PGE (144-pin QFP) variants within the same family, though the PGE variant has fewer N2HET and GPIO pins due to package constraints. The ZWT package (337-ball BGA) maintains full peripheral availability across all ZWT-suffixed parts, enabling drop-in replacement for non-automotive-qualified versions when using the same PCB layout and thermal design.
TMS5701224BZWTQQ1 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, I2C, LINbus, MibSPI, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 101
- Program Memory Size:
- 1.25MB (1.25M 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:
TMS5701224BZWTQQ1 FAQ
1.How can I place an order for TMS5701224BZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5701224BZWTQQ1 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 TMS5701224BZWTQQ1 reliable?
The price and inventory of TMS5701224BZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5701224BZWTQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5701224BZWTQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5701224BZWTQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5701224BZWTQQ1?
TMS5701224BZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5701224BZWTQQ1 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 TMS5701224BZWTQQ1?
For technical support, including TMS5701224BZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5701224BZWTQQ1 requirements.
6.How does Aetrix verify that TMS5701224BZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5701224BZWTQQ1 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 TMS5701224BZWTQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5701224BZWTQQ1?
All TMS5701224BZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5701224BZWTQQ1, 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 TMS5701224BZWTQQ1 part is unused and in its original packaging.
Return procedure for TMS5701224BZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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