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Texas Instruments TMS5700232BPZQQ1
- Part No.:
- TMS5700232BPZQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TMS5700232BPZQQ1.pdf
- Description:
- IC MCU 16/32B 128KB FLSH 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TMS5700232BPZQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual lockstep ARM Cortex-R4 CPUs, 128KB ECC-protected flash, 32KB ECC RAM, two CAN 2.0B controllers (DCAN1/DCAN2), and integrated safety features including BIST, ESM, and voltage/clock monitoring - deployed in electric power steering and ABS systems.
For engineers reviewing the TMS5700232BPZQQ1 datasheet, TMS5700232BPZQQ1 pinout, TMS5700232BPZQQ1 application, or TMS5700232BPZQQ1 equivalent, key selection criteria include ASIL-D compliance support, dual-CPU lockstep execution integrity, DCAN mailbox count (32+16), N2HET timer channel count (19), and 100-pin LQFP package compatibility with automotive PCB layouts.
Technical Context
The TMS5700232BPZQQ1 implements a safety-critical dual-core lockstep architecture where both Cortex-R4 CPUs execute identical instructions and compare results in real time; mismatch triggers ESM fault signaling via nERROR. Its FMPLL generates internal clocks up to 80 MHz from external crystal input, while the Global Clock Module routes clock domains to peripherals including DCAN, MibSPI, and N2HET.
Peripheral safety is enforced through parity protection on N2HET instruction RAM (128 words), MibADC buffer RAM (64 words), and DCAN mailboxes; ECC covers flash and SRAM; and loopback I/O testing is supported via IOMM configuration. The device operates across –40°C to 125°C with 1.2-V core and 3.3-V I/O supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4, 80-MHz max frequency, 1.66 DMIPS/MHz performance - enables deterministic real-time control in safety-critical loops. |
| Flash Memory | 128KB with ECC - supports robust firmware storage and in-field updates without corruption risk in automotive environments. |
| RAM | 32KB SRAM with ECC - ensures data integrity for runtime variables and stack operations under radiation or voltage stress. |
| CAN Interfaces | Two DCAN controllers: DCAN1 (32 mailboxes), DCAN2 (16 mailboxes), CAN 2.0B compliant - provides redundant or multi-node vehicle network connectivity. |
| N2HET Channels | 19 programmable I/O terminals - delivers precise PWM, capture, and GPIO timing for motor control and sensor interfacing. |
| MibADC | 12-bit resolution, 16-channel input, 64-word parity-protected buffer - enables high-accuracy analog sensing for battery voltage, temperature, and position feedback. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood and transmission-control module deployment per AEC-Q100 Grade 1. |
| Safety Architecture | Dual CPU lockstep, BIST, ESM with nERROR pin, memory ECC/parity, voltage/clock monitors - meets ISO 26262 ASIL-D requirements. |
Pinout & Package
Package: 100-pin LQFP (PZ), 14.00 mm × 14.00 mm body size, green RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nRST | System Reset Input/Output | Active-low reset signal; glitch-filtered, pullup-enabled - used for external cold reset assertion and system-level fault recovery. |
| nERROR | Error Signaling Output | Open-drain active-low output from ESM - indicates high-severity fault (e.g., CPU mismatch, memory ECC double-bit error) to host safety controller. |
| CAN1TX / CAN1RX | CAN Controller 1 Interface | Differential transmit/receive pair for first CAN bus - supports up to 1 Mbps, with built-in parity protection on 32 mailboxes. |
| N2HET[0]–N2HET[18] | High-End Timer I/O Terminals | 19 dedicated pins for N2HET coprocessor - configurable as PWM outputs, edge-capture inputs, or GPIO with suppression filters. |
| ADIN[0]–ADIN[21] | Analog Input Channels | 16 primary ADC inputs (ADIN[0]–ADIN[11], ADIN[16], ADIN[17], ADIN[20], ADIN[21]) - routed to 12-bit MibADC with 64-word parity buffer. |
| VCCAD / VSSAD | ADC Reference Supply | Separate 3.3-V analog supply and ground - isolates sensitive ADC circuitry from digital noise for <1 LSB INL performance. |
| OSCIN / OSCOUT | Crystal Oscillator Interface | Connects to external 4–20 MHz crystal/resonator - feeds FMPLL for jitter-tolerant clock generation in noisy automotive environments. |
| TCK / TMS / TDI / TDO | JTAG Debug Interface | IEEE 1149.1 boundary-scan signals - enables production test, flash programming, and real-time debug with ARM CoreSight support. |
Key Features
| Feature | Design Value |
|---|---|
| Dual CPU Lockstep Execution | Real-time comparison of instruction results between two Cortex-R4 cores - detects transient faults and forces safe state transition via ESM. |
| ECC-Protected Memory Subsystem | Single-bit error correction and double-bit error detection on 128KB flash and 32KB RAM - prevents silent data corruption in long-life automotive applications. |
| N2HET Timing Coprocessor | 19 programmable I/O pins with microcode-based timing engine - offloads complex PWM generation, encoder capture, and pulse sequencing from main CPU. |
| Integrated Safety Monitoring | Hardware voltage monitor, clock monitor, and BIST logic - autonomously validates supply rails and clock stability before and during operation. |
| Automotive CAN & LIN Support | Two DCAN controllers (CAN 2.0B) and one UART/LIN interface - enables communication with ECUs, sensors, and actuators across multiple vehicle networks. |
| 100-Pin LQFP Package | Standardized footprint with thermal pad option - supports automated optical inspection, reflow soldering, and mechanical reliability in vibration-prone environments. |
Applications
| Braking Systems (ABS/ESC) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time hydraulic pressure modulation and wheel-speed synchronization during emergency braking events. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D brake actuation logic with dual-CPU lockstep validation and DCAN network coordination. Use Value: Enables sub-100 µs interrupt latency and deterministic response to wheel slip detection, meeting ISO 26262 functional safety targets. |
Use Scenario: Torque assist calculation and motor current control based on torque sensor, vehicle speed, and steering angle inputs. IC Role / Device Role / Timing Role: Central MCU managing N2HET-driven motor PWM, MibADC sampling of analog sensors, and CAN communication with body control module. Use Value: Delivers 12-bit ADC accuracy and 19-channel N2HET timing for precise motor phase control and fault-tolerant torque overlay. |
| Battery Management Systems | Railway Communications |
Use Scenario: Cell voltage monitoring, thermal management, and SOC estimation in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Safety-certified data acquisition node with isolated ADC inputs, CRC-checked CAN messaging, and ECC-protected firmware storage. Use Value: Supports 16-channel analog sensing with parity-protected 64-word buffer and dual-CPU validation of critical BMS decisions. |
Use Scenario: Interlocking logic and train-to-trackside communication in signaling and ATP subsystems. IC Role / Device Role / Timing Role: SIL-4-capable controller interfacing with track circuits, axle counters, and GSM-R radio via DCAN and UART/LIN. Use Value: Provides certified fault detection (ESM/nERROR), memory ECC, and 125°C operation for uncooled onboard railway electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS0332PZ | Same 100-pin PZ package, identical CPU, flash (256KB), RAM (32KB), and peripheral set - but lacks ePWM/eCAP modules. | Targeted at non-motor-control safety applications (e.g., HVAC control, lighting modules) where N2HET suffices without advanced PWM. | Select TMS570LS0332PZ when higher flash capacity is needed without ePWM; verify N2HET channel count (19) matches TMS5700232BPZQQ1. |
| TMS570LS0432PZ | Same package and CPU; flash increased to 384KB, adds second MibADC (24-channel), retains 19 N2HET channels and dual DCAN. | Supports more complex sensor fusion (e.g., multi-axis IMU + analog thermistors) and larger safety firmware images in EPS or ADAS domain controllers. | Choose TMS570LS0432PZ when additional ADC channels or flash headroom is required; confirm pin compatibility and thermal derating at 125°C. |
Compared with TMS570LS0332PZ and TMS570LS0432PZ, the TMS5700232BPZQQ1 offers optimal balance of ASIL-D safety features, 128KB flash for certified code, and 19 N2HET channels - making it ideal for cost-sensitive yet functionally demanding EPS and braking systems where full ePWM capability is unnecessary.
Availability
TMS5700232BPZQQ1 is available at Aetrix Electronics and suitable for electric power steering, anti-lock braking systems, and battery management systems requiring stable component supply across extended automotive product lifecycles.
Supply support for TMS5700232BPZQQ1 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 decades of automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The TMS570 Hercules™ platform was designed specifically for functional safety-critical applications in automotive, industrial, and transportation systems - emphasizing lockstep CPU redundancy, memory protection, and diagnostic coverage.
FAQ
What is the maximum operating frequency of the TMS5700232BPZQQ1?
The TMS5700232BPZQQ1 operates at a maximum system clock frequency of 80 MHz, enabled by its Frequency-Modulated Phase-Locked Loop (FMPLL). This frequency supports up to 132 DMIPS of computational throughput from the ARM Cortex-R4 core while maintaining deterministic real-time behavior required for ASIL-D applications.
Does the TMS5700232BPZQQ1 support CAN FD?
No, the TMS5700232BPZQQ1 supports only Classical CAN (CAN 2.0B) protocol up to 1 Mbps via its two DCAN controllers. It does not implement CAN FD physical layer or protocol enhancements; CAN FD capability requires newer Hercules variants such as TMS570LC4357.
How many N2HET channels does the TMS5700232BPZQQ1 provide?
The TMS5700232BPZQQ1 provides 19 dedicated N2HET I/O terminals (N2HET[0] through N2HET[18]), each configurable for PWM output, input capture, compare, or general-purpose I/O with programmable suppression filtering - matching the count specified in the device's functional block diagram and pinout tables.
Is the TMS5700232BPZQQ1 qualified for automotive use?
Yes, the TMS5700232BPZQQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C), ISO 26262 ASIL-D ready, and designed for safety-critical automotive applications including EPS, ABS, and battery management. Its lockstep CPU, ECC memory, and ESM fault signaling meet stringent automotive reliability standards.
What debug interfaces are available on the TMS5700232BPZQQ1?
The TMS5700232BPZQQ1 includes IEEE 1149.1 JTAG boundary scan and ARM CoreSight™ debug infrastructure, accessible via TCK, TMS, TDI, TDO, nTRST, and RTCK pins. These enable full-chip visibility, flash programming, real-time tracing, and safety diagnostics using TI's Code Composer Studio and third-party debug tools.
TMS5700232BPZQQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Hercules™ TMS570 ARM® Cortex®-R
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-R4
- Core Size:
- 16/32-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, LINbus, MibSPI, SCI, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS5700232BPZQQ1 FAQ
1.How can I place an order for TMS5700232BPZQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5700232BPZQQ1 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 TMS5700232BPZQQ1 reliable?
The price and inventory of TMS5700232BPZQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5700232BPZQQ1 is usually 5 days.
3.What payment methods are accepted for TMS5700232BPZQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5700232BPZQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5700232BPZQQ1?
TMS5700232BPZQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5700232BPZQQ1 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 TMS5700232BPZQQ1?
For technical support, including TMS5700232BPZQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5700232BPZQQ1 requirements.
6.How does Aetrix verify that TMS5700232BPZQQ1 is sourced from the original manufacturer or authorized distributors?
All TMS5700232BPZQQ1 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 TMS5700232BPZQQ1 meets industry standards.
7.What is the process for return or replacement of TMS5700232BPZQQ1?
All TMS5700232BPZQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5700232BPZQQ1, 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 TMS5700232BPZQQ1 part is unused and in its original packaging.
Return procedure for TMS5700232BPZQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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