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Texas Instruments TMS5701227CZWTQQ1
- Part No.:
- TMS5701227CZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS5701227CZWTQQ1.pdf
- Description:
- IC MCU 32B 1.25MB FLASH 337NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:472
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Product details
Overview
TMS5701227CZWTQQ1 from Texas Instruments is an automotive-grade 32-bit ARM Cortex-R4F safety microcontroller with dual lockstep CPUs, 1.25MB flash (ECC-protected), 192KB 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 TMS5701227CZWTQQ1 datasheet, TMS5701227CZWTQQ1 pinout, TMS5701227CZWTQQ1 application, or TMS5701227CZWTQQ1 equivalent, key selection criteria include ASIL-D compliance support, dual-CPU lockstep execution integrity, N2HET timer channel count, ePWM deadband/trip-zone capability, and FlexRay/Ethernet/DCAN interface availability for safety-critical vehicle networks.
Technical Context
The TMS5701227CZWTQQ1 implements a dual-core lockstep architecture where both Cortex-R4F CPUs execute identical instructions and compare results in real time; fault detection triggers ESM-driven error signaling via nERROR pin. Its FMPLL and nonmodulating PLL provide independent clock domains for core, peripherals, and safety monitors.
Peripheral timing is offloaded to two N2HET coprocessors - N2HET1 with 32 programmable channels and N2HET2 with 18 - each featuring dedicated HTU for DMA-like memory transfers and built-in MPU protection. The device integrates three DCAN controllers compliant with CAN 2.0A/B, one FlexRay controller (dual-channel, 10 Mbps), and IEEE 802.3-compliant EMAC supporting MII/RMII/MDIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F, 1.66 DMIPS/MHz, up to 180 MHz (298 DMIPS) |
| Memory | 1.25MB program flash with ECC, 192KB RAM with ECC, 64KB emulated EEPROM with ECC |
| Safety Features | Dual CPU lockstep, CPU/RAM BIST, ECC on flash/RAM, parity on peripheral memories, ESM with nERROR output |
| Timers & PWM | 2× N2HET (32 + 18 channels), 7× ePWM modules (14 outputs, trip zone, deadband), 6× eCAP, 2× eQEP |
| Analog | 2× 12-bit MibADC (24 total inputs, 64-word parity-protected buffers each) |
| Communication | 3× DCAN (CAN 2.0A/B), 1× FlexRay (2-channel), 1× EMAC (10/100 Mbps), 3× MibSPI, 2× SPI, 1× I2C, 2× SCI, 1× LIN |
| Package | 337-ball NFBGA (ZWT), 16.0 mm × 16.0 mm, RoHS-compliant green package |
Pinout & Package
337-ball NFBGA (ZWT) package with 0.8-mm ball pitch, thermally enhanced construction for automotive under-hood operation; supports daisy-chain JTAG debugging and boundary scan per IEEE 1149.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nERROR | Error signaling output | Active-low open-drain fault indicator driven by ESM upon detected CPU, memory, or clock failure |
| VCC, VCCIO | Power supply rails | VCC = 1.14–1.32 V core supply; VCCIO = 3.0–3.6 V I/O supply - separate domains enable mixed-voltage interfacing |
| N2HET1[31:0] | N2HET1 I/O terminals | 32 programmable high-resolution timing pins supporting PWM generation, event capture, or GPIO with configurable slew rate |
| EMAC_MII_RXD[3:0] | Ethernet receive data | 4-bit parallel MII interface for 10/100 Mbps Ethernet MAC; requires external PHY connection |
| FRAY_TX1 / FRAY_RX1 | FlexRay Channel 1 | Differential transmit/receive pair for 10 Mbps deterministic automotive network; supports time-triggered communication |
| DCAN1_TX / DCAN1_RX | CAN Controller 1 | High-speed differential CAN bus interface compliant with ISO 11898-1; supports bit rates up to 1 Mbps |
Key Features
| Feature | Design Value |
|---|---|
| Dual Lockstep CPU Execution | Real-time comparison of dual Cortex-R4F outputs ensures functional safety integrity per ISO 26262 ASIL-D requirements |
| FMPLL with Slip Detection | Frequency-modulated PLL provides robust clock synthesis with built-in slip detection to prevent undetected frequency drift |
| N2HET Hardware Angle Generator | On-chip angle computation engine enables precise motor position control without CPU intervention in EPS and inverter applications |
| Parameter Overlay Module (POM) | Enables runtime re-mapping of flash accesses to RAM or EMIF, eliminating flash reprogramming during calibration updates |
| Dedicated Transfer Units | HTU (for N2HET), FTU (for FlexRay), and DMA with MPU protection ensure safe, autonomous data movement without CPU overhead |
Applications
| Electric Power Steering (EPS) | Braking Systems (ABS/ESC) |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase control in column-assist and rack-assist EPS units. IC Role / Device Role / Timing Role: Primary safety MCU executing ASIL-D motor control algorithms, managing ePWM deadtime, eQEP rotor position feedback, and N2HET-based sensor sampling. Use Value: Dual lockstep CPU and ECC memory ensure fault-free execution of torque commands; N2HET hardware angle generator reduces CPU load by 35% in high-frequency commutation loops. | Use Scenario: Closed-loop wheel speed monitoring, hydraulic valve actuation, and yaw stability control in ABS and electronic stability control modules. IC Role / Device Role / Timing Role: Safety-critical controller coordinating DCAN messaging between ECUs, processing eCAP-based wheel speed signals, and driving ePWM-controlled solenoid valves. Use Value: Triple DCAN controllers enable redundant CAN paths; eCAP modules achieve ±50 ns capture resolution for accurate wheel speed differentiation under transient braking conditions. |
| HEV/EV Inverter Control | Railway Communications |
Use Scenario: Gate driver signal generation, current sensing, thermal monitoring, and fault response in traction inverters for hybrid and battery electric vehicles. IC Role / Device Role / Timing Role: High-reliability motor control MCU interfacing with isolated gate drivers, ADCs for phase current measurement, and FlexRay for vehicle-level coordination. Use Value: 7× ePWM modules with synchronized deadband and trip-zone protection prevent shoot-through faults; FlexRay dual-channel redundancy meets EN 5012x SIL-4 communication requirements. | Use Scenario: Interlocking logic, train-to-trackside communication, and safety-critical signaling in European Train Control System (ETCS) Level 2 onboard units. IC Role / Device Role / Timing Role: Certified safety processor handling CRC-protected message routing, DCAN/FlexRay gateway functions, and watchdog-managed software partitioning. Use Value: Built-in 2-channel CRC module validates packet integrity at line rate; ESM-triggered nERROR output interfaces directly with external safety relays per IEC 62425. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS0432CPZ | Lower memory (384KB flash, 64KB RAM), single N2HET (18 channels), no FlexRay, 144-pin LQFP | Targeted at cost-sensitive ASIL-B systems like body control modules; lacks dual-channel FlexRay and EMAC | Select when Ethernet/FlexRay are unnecessary and footprint constraints favor LQFP over BGA |
| SPC574SADK1AKLQ | Power Architecture-based, 200 MHz, 2MB flash, 256KB RAM, includes SENT interface and HSE security engine | Optimized for powertrain and chassis with embedded HSM for secure boot; no N2HET or hardware angle generator | Prefer when cryptographic acceleration, SENT sensor support, or AUTOSAR SecOC integration are required |
Compared with TMS5701227CZWTQQ1, the TMS570LS0432CPZ offers reduced safety scope and peripheral count for lower-ASIL applications, while the SPC574SADK1AKLQ shifts architecture to Power Architecture with stronger security primitives but sacrifices N2HET's deterministic timing for motor control.
Availability
TMS5701227CZWTQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and HEV/EV inverter control requiring stable component supply across extended automotive temperature ranges (–40°C to 125°C).
Supply support for TMS5701227CZWTQQ1 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 for automotive, industrial, and communications markets.
The TMS570 Hercules™ family delivers ASIL-D-capable MCUs with lockstep cores, memory ECC, and safety-certified peripherals - engineered specifically for automotive safety-critical control in steering, braking, and powertrain systems.
FAQ
What safety certifications does the TMS5701227CZWTQQ1 support?
The TMS5701227CZWTQQ1 is designed to support ISO 26262 ASIL-D development workflows, with integrated dual-lockstep CPUs, memory ECC, BIST, ESM, and certified safety documentation from Texas Instruments. It has been used in production ASIL-D systems including EPS and ABS ECUs, though final certification is system-level and dependent on software implementation and tool qualification. TMS5701227CZWTQQ1 silicon revision and safety manual version must be verified against TI's latest Hercules Functional Safety Documentation Package.
Does the TMS5701227CZWTQQ1 include hardware support for motor control timing?
Yes, the TMS5701227CZWTQQ1 includes two Next Generation High-End Timer (N2HET) modules - N2HET1 with 32 channels and N2HET2 with 18 channels - each featuring hardware angle generation, dedicated HTU for memory transfers, and programmable microcode for complex waveform synthesis. These timers operate independently of the CPU and are widely used for field-oriented control (FOC) commutation, resolver excitation, and encoder interpolation in EPS and inverter applications. TMS5701227CZWTQQ1's N2HET architecture eliminates CPU polling overhead and ensures sub-microsecond timing determinism.
What communication interfaces are available on the TMS5701227CZWTQQ1 for automotive networking?
The TMS5701227CZWTQQ1 integrates three DCAN controllers (CAN 2.0A/B, up to 1 Mbps), one dual-channel FlexRay controller (10 Mbps per channel), a 10/100 Mbps Ethernet MAC (MII/RMII/MDIO), three MibSPI modules, two standard SPIs, one LIN 2.1 interface, two SCI UARTs, and one I2C module. This combination supports layered automotive networking - CAN for distributed control, FlexRay for time-triggered chassis coordination, and Ethernet for high-bandwidth diagnostics or OTA updates. All interfaces feature parity/ECC protection and are accessible via the TMS5701227CZWTQQ1's multiplexed pinout in the ZWT package.
How is memory protected against corruption in the TMS5701227CZWTQQ1?
Memory protection in the TMS5701227CZWTQQ1 is implemented at multiple levels: 1.25MB flash and 192KB RAM use ECC for single-bit correction and double-bit detection; peripheral memories (e.g., N2HET RAM, message RAM) employ parity protection; a 12-region MPU enforces access rights for code, data, and peripheral spaces; and the Parameter Overlay Module (POM) allows safe runtime parameter updates without flash reprogramming. These mechanisms collectively meet ASIL-D requirements for memory integrity, and all are active by default at power-on reset in TMS5701227CZWTQQ1. External memory accessed via EMIF also benefits from configurable wait-state and timing validation.
What is the operating temperature range and power supply configuration for the TMS5701227CZWTQQ1?
The TMS5701227CZWTQQ1 is qualified for automotive operation from –40°C to 125°C ambient temperature. It requires two independent supply rails: VCC (core voltage) at 1.14–1.32 V and VCCIO (I/O voltage) at 3.0–3.6 V. The device includes internal voltage regulation, brown-out detection, and dedicated clock/voltage monitors that feed into the Error Signaling Module (ESM). Power sequencing is defined in the datasheet, with VCCIO ramping before or simultaneously with VCC; improper sequencing may trigger nERROR assertion. TMS5701227CZWTQQ1's thermal design supports conduction-cooled mounting in compact ECU housings typical of modern ADAS and chassis modules.
TMS5701227CZWTQQ1 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:
- 32-Bit Dual-Core
- Speed:
- 180MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, FlexRay, I2C, LINbus, MibSPI, SPI, UCI, 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:
TMS5701227CZWTQQ1 FAQ
1.How can I place an order for TMS5701227CZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5701227CZWTQQ1 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 TMS5701227CZWTQQ1 reliable?
The price and inventory of TMS5701227CZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5701227CZWTQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5701227CZWTQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5701227CZWTQQ1 transactions.
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4.How is shipping managed for TMS5701227CZWTQQ1?
TMS5701227CZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5701227CZWTQQ1 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 TMS5701227CZWTQQ1?
For technical support, including TMS5701227CZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5701227CZWTQQ1 requirements.
6.How does Aetrix verify that TMS5701227CZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5701227CZWTQQ1 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 TMS5701227CZWTQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5701227CZWTQQ1?
All TMS5701227CZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5701227CZWTQQ1, 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 TMS5701227CZWTQQ1 part is unused and in its original packaging.
Return procedure for TMS5701227CZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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