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Texas Instruments TMS5701225BZWTQQ1
- Part No.:
- TMS5701225BZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS5701225BZWTQQ1.pdf
- Description:
- IC MCU 32BIT 1.25MB FLASH 337BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,663
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Product details
Overview
TMS5701225BZWTQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual ARM Cortex-R4F CPUs in lockstep, 1.25 MB ECC-protected flash, 192 KB ECC-protected RAM, and integrated safety features including BIST, voltage/clock monitoring, and error signaling. It delivers 298 DMIPS at 180 MHz and targets real-time motor control in electric power steering and braking systems.
For engineers reviewing the TMS5701225BZWTQQ1 datasheet, TMS5701225BZWTQQ1 pinout, TMS5701225BZWTQQ1 application, or TMS5701225BZWTQQ1 equivalent, key selection criteria include ASIL-D compliance support, dual-CPU lockstep execution, N2HET timing coprocessor count, ePWM/eCAP channel availability, and 337-ball NFBGA (ZWT) package compatibility with automotive PCB layouts.
Technical Context
The TMS5701225BZWTQQ1 implements a safety-critical architecture with two identical ARM Cortex-R4F cores executing identical instructions in lockstep, where mismatch triggers ESM fault reporting. Its memory subsystem includes ECC on 1.25 MB flash and 192 KB RAM, plus parity on peripheral memories and dedicated MPUs for DMA, HTU, and FTU.
Real-time control is enabled by two N2HET modules (32 + 18 programmable channels), seven ePWM modules (14 outputs), six eCAP modules, two eQEP modules, and dual 12-bit MibADCs (24 total inputs). Communication includes three DCAN controllers (CAN 2.0A/B), FlexRay (2-channel), three MibSPI, I²C, LIN, and UART interfaces - all designed for deterministic operation in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F dual-core in lockstep, 1.66 DMIPS/MHz, up to 180 MHz → enables ASIL-D compliant real-time control with hardware fault detection |
| Flash Memory | 1.25 MB with ECC → supports robust firmware storage and in-field updates without corruption risk in safety-critical applications |
| RAM | 192 KB SRAM with ECC → ensures data integrity for control algorithms and runtime variables under radiation or voltage stress |
| N2HET Channels | 44 total (32 + 18) → provides high-resolution, software-defined timing for sensor sampling, actuator drive, and complex waveform generation |
| ePWM Outputs | 14 channels with trip-zone protection and dead-band generation → directly controls 3-phase inverters in EPS and EV traction systems |
| ADC Inputs | 24-channel 12-bit MibADC with 64-word parity-protected buffers → enables synchronized current/voltage sensing across multiple motor phases |
| Communication | 3× DCAN, 2× FlexRay, 3× MibSPI, LIN, I²C, UART → meets automotive networking requirements for distributed control and diagnostics |
Pinout & Package
The TMS5701225BZWTQQ1 is housed in a 337-ball NFBGA package (ZWT), 16.0 mm × 16.0 mm, green RoHS-compliant, with 0.8 mm ball pitch and thermal pad. Pin functions are defined per TI SPNS191B Section 4.2 (ZWT Ball-Map) and Table 4-22 (N2HET terminal assignments).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nERROR | Error signaling output | Active-low fault indicator tied to external watchdog or system supervisor; asserts on CPU lockstep mismatch or memory ECC double-bit error |
| VCC, VCCIO | Power supply rails | VCC = 1.14–1.32 V core; VCCIO = 3.0–3.6 V I/O → requires dual-rail power design with tight regulation for ASIL-D compliance |
| N2HET1[31:0] | N2HET1 I/O terminals | 32 programmable high-resolution timing pins supporting PWM, capture, compare, or GIO → used for encoder interface or gate driver timing |
| ePWMxA / ePWMxB | Enhanced PWM outputs | Complementary high-side/low-side outputs with programmable dead time → drives half-bridge MOSFETs without external logic |
| AD1IN[7:0] | Analog input bank | 8 dedicated ADC1 inputs for current sensing or voltage monitoring → supports simultaneous sampling with MibADC group triggering |
| DCAN1_TX / DCAN1_RX | CAN bus interface | Differential CAN 2.0B transceiver interface (1 Mbps max) → connects to vehicle body control or chassis domain networks |
Key Features
| Feature | Design Value |
|---|---|
| Dual-CPU Lockstep Execution | Hardware-enforced instruction-by-instruction comparison between two Cortex-R4F cores; mismatch triggers immediate ESM fault response for ISO 26262 ASIL-D compliance |
| ECC Memory Protection | Single-bit error correction and double-bit error detection on 1.25 MB flash and 192 KB RAM → eliminates silent data corruption in long-life automotive deployments |
| N2HET Timing Coprocessors | Two independent N2HET modules (32 + 18 channels) with HTU DMA transfer units → offloads precise timing tasks from CPU, reducing jitter in motor control loops |
| Integrated Safety Peripherals | Built-in BIST for CPU and RAM, voltage/clock monitors, and error signaling module (ESM) with nERROR pin → satisfies diagnostic coverage requirements for functional safety certification |
| Multichannel Motor Control Peripherals | 7 ePWM modules (14 outputs), 6 eCAP, 2 eQEP, and dual 12-bit MibADCs → enables full-featured digital motor control for EPS, ABS, and inverter systems without external ICs |
Applications
| Electric Power Steering (EPS) | Braking Systems (ABS/ESC) |
|---|---|
Use Scenario: Real-time torque assist calculation and three-phase inverter control for column-assist or rack-assist EPS systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms, managing ePWM dead-time, eQEP rotor position feedback, and CAN communication with vehicle network. Use Value: Dual-lockstep CPU and ECC memory ensure fail-operational behavior during transient faults; N2HET handles high-frequency sensor sampling without CPU load. |
Use Scenario: Closed-loop hydraulic pressure modulation and wheel speed monitoring in anti-lock braking and electronic stability control units. IC Role / Device Role / Timing Role: Central safety MCU coordinating DCAN messaging, MibADC-based wheel speed acquisition, and ePWM-driven solenoid valve timing. Use Value: 14 ePWM outputs enable independent control of four brake calipers; triple DCAN interfaces support redundancy and diagnostics across chassis domains. |
| HEV/EV Inverter Systems | Railway Communications |
Use Scenario: Traction inverter control in hybrid and battery-electric vehicles, including IGBT/SiC gate driving and thermal monitoring. IC Role / Device Role / Timing Role: High-reliability motor controller interfacing with isolated gate drivers via ePWM, acquiring phase currents via MibADC, and reporting status over FlexRay. Use Value: FlexRay dual-channel interface provides deterministic, fault-tolerant communication for torque coordination; 180-MHz clock supports fast current loop execution. |
Use Scenario: Onboard train control unit for signaling, door interlocking, and brake command arbitration in EN 5012x-certified railway systems. IC Role / Device Role / Timing Role: Safety-certified host processor managing SIL-4 communication stacks (MVB, CANopen), discrete I/O monitoring, and watchdog supervision. Use Value: Built-in ESM and BIST meet railway functional safety requirements; 337-ball ZWT package supports conformal coating and high-vibration mounting. |
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 3072 KB flash and 256 KB RAM → higher firmware/data capacity | Suitable for applications requiring larger OTA update partitions or extended logging buffers | Select when additional flash/RAM headroom is needed without changing layout or safety qualification effort |
| SPC574K72E5 | STMicroelectronics 32-bit Power Architecture MCU; 240 MHz, 2 MB flash, 384 KB RAM, ASIL-D certified | Uses different architecture (e200z7), toolchain, and peripheral mapping; no N2HET or FlexRay | Choose for cross-platform redundancy or where Power Architecture ecosystem alignment is required |
Compared with TMS5701225BZWTQQ1, TMS570LS1227ZWT offers greater memory scalability within the same pinout and safety architecture, while SPC574K72E5 provides architectural diversity for multi-vendor safety strategies - both require revalidation of application code and peripheral drivers.
Availability
TMS5701225BZWTQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and HEV/EV inverter designs requiring stable component supply, long-term automotive lifecycle support, and ASIL-D-ready silicon.
Supply support for TMS5701225BZWTQQ1 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and communications markets.
The TMS570 Hercules™ family was engineered specifically for ISO 26262 ASIL-D and IEC 61508 SIL-3 safety-critical applications, integrating lockstep CPUs, memory ECC, and self-test logic to eliminate single points of failure in automotive control systems.
FAQ
What safety certifications does the TMS5701225BZWTQQ1 support?
The TMS5701225BZWTQQ1 is designed to support ISO 26262 ASIL-D and IEC 61508 SIL-3 functional safety standards. Its dual-lockstep Cortex-R4F CPUs, ECC-protected memory, built-in BIST, and error signaling module (ESM) provide the hardware foundation required for certification. TI supplies safety manuals, FMEDA reports, and diagnostic software libraries to accelerate qualification of end systems using the TMS5701225BZWTQQ1.
Does the TMS5701225BZWTQQ1 include FlexRay support?
Yes, the TMS5701225BZWTQQ1 integrates a dual-channel FlexRay controller compliant with FlexRay v2.1, supporting deterministic communication at 10 Mbps per channel. It includes a dedicated FlexRay Transfer Unit (FTU) for autonomous DMA transfers between FlexRay message RAM and main memory, with MPU protection. This capability is confirmed in TI SPNS191B Section 7.7 and Table 3-1 device comparison.
What is the maximum operating frequency of the TMS5701225BZWTQQ1?
The TMS5701225BZWTQQ1 operates at up to 180 MHz system clock frequency, delivering 298 DMIPS performance. This maximum frequency is achievable under specified conditions: core supply (VCC) between 1.14 V and 1.32 V, I/O supply (VCCIO) between 3.0 V and 3.6 V, and ambient temperature within –40°C to 125°C. The FMPLL and GCM clock modules manage frequency synthesis and domain distribution as documented in Section 6.6 of SPNS191B.
How many CAN controllers are integrated into the TMS5701225BZWTQQ1?
The TMS5701225BZWTQQ1 integrates three DCAN controllers compliant with CAN protocol version 2.0A and 2.0B, each supporting bit rates up to 1 Mbps. These controllers feature 64 mailboxes with parity protection, dedicated message RAM, and integration with the VIM interrupt manager. This configuration is explicitly listed in Section 1.1 Features and Table 3-1 of the SPNS191B datasheet.
Is the TMS5701225BZWTQQ1 pin-compatible with other TMS570 devices?
The TMS5701225BZWTQQ1 in the 337-ball ZWT package shares pinout compatibility with other ZWT variants in the TMS570LS122x family, including TMS570LS1227ZWT and TMS570LS3137ZWT. However, it is not pin-compatible with PGE (144-pin QFP) variants like TMS570LS1225PGE due to differing ball/pin counts and signal allocations. Always verify terminal functions against Section 4.2 (ZWT Ball-Map) in SPNS191B before board reuse.
TMS5701225BZWTQQ1 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:
- 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:
TMS5701225BZWTQQ1 FAQ
1.How can I place an order for TMS5701225BZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5701225BZWTQQ1 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 TMS5701225BZWTQQ1 reliable?
The price and inventory of TMS5701225BZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5701225BZWTQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5701225BZWTQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5701225BZWTQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5701225BZWTQQ1?
TMS5701225BZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5701225BZWTQQ1 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 TMS5701225BZWTQQ1?
For technical support, including TMS5701225BZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5701225BZWTQQ1 requirements.
6.How does Aetrix verify that TMS5701225BZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5701225BZWTQQ1 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 TMS5701225BZWTQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5701225BZWTQQ1?
All TMS5701225BZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5701225BZWTQQ1, 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 TMS5701225BZWTQQ1 part is unused and in its original packaging.
Return procedure for TMS5701225BZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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