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Texas Instruments TMS5700432BPZQQ1R
- Part No.:
- TMS5700432BPZQQ1R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TMS5700432BPZQQ1R.pdf
- Description:
- IC MCU 16/32B 384KB FLSH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,089
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Product details
Overview
TMS5700432BPZQQ1R from Texas Instruments is a dual-CPU ARM Cortex-R4 32-bit RISC microcontroller for automotive safety-critical systems, featuring 384KB flash with ECC, 32KB RAM with ECC, and 16KB emulated EEPROM with ECC. It operates at 80 MHz, supports CAN 2.0B (2 controllers), 12-bit 16-channel ADC with 64-word parity-protected buffer, and N2HET with up to 19 programmable pins - deployed in ABS, EPS, and battery-management systems.
For engineers reviewing the TMS5700432BPZQQ1R datasheet, TMS5700432BPZQQ1R pinout, TMS5700432BPZQQ1R application, or TMS5700432BPZQQ1R equivalent, key selection criteria include lockstep CPU redundancy, FMPLL clocking with slip detection, IEEE 1149.1 JTAG + CoreSight debug, and functional safety compliance per ISO 26262 ASIL-D requirements.
Technical Context
The TMS5700432BPZQQ1R implements a dual-core lockstep architecture where both Cortex-R4 CPUs execute identical instructions and compare results in real time, triggering ESM fault signaling on mismatch. Its memory subsystem includes ECC-protected flash and SRAM, parity-protected peripheral buffers (MibSPI, DCAN, ADC), and built-in LBIST for CPU and RAM self-test.
Timing and control are managed by the N2HET coprocessor (128-word instruction RAM with parity), RTI timer, 96-channel VIM interrupt controller, and eQEP module for motor position feedback. The FMPLL generates internal clocks with integrated slip detection, while the GCM routes five clock sources across domains including VCLK, HCLK, and PCLK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4, 80-MHz max, 1.66 DMIPS/MHz - delivers deterministic real-time performance for ASIL-D software stacks. |
| Flash Memory | 384KB with ECC - enables safe storage of boot code, application firmware, and safety-critical parameters with single-bit correction/double-bit detection. |
| RAM | 32KB SRAM with ECC - supports runtime data, stack, and safety monitor variables with error resilience. |
| ADC | 12-bit, 16-channel, 64-word parity-protected buffer - provides high-resolution analog sensing for motor current, voltage, temperature in EPS and BMS. |
| CAN Interfaces | 2× DCAN controllers (DCAN1: 32 mailboxes; DCAN2: 16 mailboxes), CAN 2.0B compliant - enables robust vehicle network communication up to 1 Mbps in noisy environments. |
| N2HET | 19 programmable I/O pins, 128-word instruction RAM with parity - offloads complex timing tasks (PWM generation, capture, GPIO sequencing) from main CPU. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive deployment without derating. |
Pinout & Package
Package: 100-pin LQFP (PZ), 14.00 mm × 14.00 mm, green RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nERROR (Pin 82) | Error signaling output | Active-low fault indicator driven by ESM - used for external watchdog supervision or system-level fail-safe shutdown. |
| CAN1TX (Pin 62) / CAN1RX (Pin 63) | CAN differential interface | Direct connection to CAN transceiver; supports 1 Mbps operation with built-in parity protection on message buffers. |
| ADIN[0]–ADIN[21] (Pins 42,49,51–57,43,50,48,53,40,41,44,45) | Analog input channels | 16 dedicated ADC inputs (12-bit resolution); VCCAD/ADREFHI (Pin 46) and VSSAD/ADREFLO (Pin 47) define reference range. |
| N2HET[0]–N2HET[29] (Pins 19,22,25,26,74,83,89,90,97,93,98,27,11,64,39,58,18,68,12) | High-end timer I/O | 19 pins configurable as PWM outputs, capture inputs, or GPIO; each with suppression filter and programmable drive strength. |
| VCC (Pin 13), VCCIO (Pins 29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100), VCCAD (Pin 46), VCCP (Pin 96) | Power supply terminals | Dedicated 1.2-V core (VCC), 3.3-V I/O (VCCIO), 3.3-V ADC (VCCAD), and flash pump (VCCP) rails - require independent decoupling per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual CPU lockstep execution | Real-time hardware comparison of CPU outputs ensures immediate fault detection for ASIL-D compliance without software overhead. |
| ECC on flash and RAM | Single-bit error correction and double-bit error detection prevent silent data corruption in safety-critical firmware and runtime variables. |
| FMPLL with slip detection | Frequency-modulated PLL monitors clock stability and triggers fault response if reference or output deviates beyond tolerance - critical for timing safety. |
| 96-channel VIM with parity | Vectored interrupt controller supports prioritized, low-latency response to 96 sources, with parity-protected register access to prevent interrupt vector corruption. |
| Advanced JTAG Security Module (AJSM) | Prevents unauthorized debug access and firmware extraction via secure authentication and encrypted boundary scan. |
Applications
| Braking Systems (ABS/ESC) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time hydraulic pressure modulation and wheel speed monitoring during emergency braking events. IC Role / Device Role / Timing Role: Primary safety controller executing ISO 26262 ASIL-D brake actuation logic with lockstep CPU validation and fault-tolerant CAN messaging. Use Value: Enables sub-100 µs interrupt latency and deterministic execution for fail-operational braking response under fault conditions. | Use Scenario: Torque assist calculation, motor position control, and torque sensor fusion in column-assist EPS systems. IC Role / Device Role / Timing Role: Central MCU managing N2HET-driven motor PWM, eQEP-based rotor position feedback, and 12-bit ADC sampling of motor phase currents. Use Value: Delivers <5 µs current-loop update time using hardware-accelerated timers and parity-protected ADC buffers for precise torque delivery. |
| Battery-Management Systems | Active Driver Assistance Systems |
Use Scenario: Cell voltage, temperature, and current monitoring in 48V mild-hybrid or EV traction battery packs. IC Role / Device Role / Timing Role: Safety-certified data acquisition node interfacing with analog front-ends, performing CRC-checked CAN messaging to master BMS controller. Use Value: Supports redundant voltage measurement paths and ECC-protected flash storage of calibration data for lifetime traceability. | Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for adaptive cruise control and automatic emergency braking. IC Role / Device Role / Timing Role: Real-time processing unit running ASIL-B software on isolated CPU core while monitoring lockstep pair for fault containment. Use Value: Provides hardware-isolated memory regions and MPU-configurable access rights to prevent interference between safety and non-safety partitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS0332PZ | 256KB flash (vs. 384KB), same 32KB ECC RAM, identical pinout and peripheral set. | Suitable for lower-code-footprint ASIL-D applications where reduced flash capacity is acceptable. | Select when firmware size fits within 256KB and cost optimization is prioritized without sacrificing safety features or package compatibility. |
| SPC574S40E1 | Power Architecture e200z4, 160 MHz, 2MB flash, 256KB RAM, ASIL-D certified but no lockstep CPU - uses compiler-assisted redundancy and SW diagnostics. | Targets higher-performance powertrain control with larger memory footprint; lacks hardware lockstep but offers broader automotive qualification history. | Choose for legacy Power Architecture ecosystems or applications requiring >384KB flash and higher clock frequency, accepting different safety implementation methodology. |
Compared with TMS570LS0332PZ, the TMS5700432BPZQQ1R provides 128KB additional ECC flash for larger safety firmware and diagnostic routines; versus SPC574S40E1, it delivers deterministic hardware lockstep verification rather than software-redundancy-based fault detection - reducing certification effort for ASIL-D systems.
Availability
TMS5700432BPZQQ1R is available at Aetrix Electronics and suitable for braking systems, electric power steering, and battery-management systems requiring stable component supply across long automotive production lifecycles.
Supply support for TMS5700432BPZQQ1R 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 deep automotive qualification expertise.
The TMS570 Hercules™ platform was designed specifically for ISO 26262 ASIL-D safety-critical automotive applications, integrating lockstep CPUs, memory ECC, and self-test logic into a unified safety architecture.
FAQ
What safety certifications apply to the TMS5700432BPZQQ1R?
The TMS5700432BPZQQ1R is qualified to ISO 26262 ASIL-D for automotive safety applications and supports IEC 61508 SIL-3. It includes hardware safety mechanisms such as dual-CPU lockstep, ECC on flash and RAM, BIST, and ESM - all documented in TI's TMS570 Functional Safety Manual (SPNU528). The TMS5700432BPZQQ1R device itself does not carry third-party certification labels but provides the necessary hardware foundation for certified system-level implementations.
Does the TMS5700432BPZQQ1R support LIN communication?
Yes, the TMS5700432BPZQQ1R integrates a UART/LIN module compliant with LIN 2.1 specification. It supports both full-duplex UART mode and LIN slave/master operation with automatic sync-break detection and checksum handling. Pins LINRX (Pin 94) and LINTX (Pin 95) are dedicated for this interface, and the module shares resources with the SCI peripheral - enabling seamless integration into body control modules and sensor nodes requiring LIN connectivity alongside CAN.
How many CAN interfaces does the TMS5700432BPZQQ1R have, and what are their mailbox counts?
The TMS5700432BPZQQ1R features two DCAN controllers: DCAN1 with 32 configurable mailboxes and DCAN2 with 16 mailboxes. Both support CAN 2.0B protocol, bit rates up to 1 Mbps, and parity protection on all mailbox RAM. Mailbox allocation is fully software-configurable via the Message RAM Interface (MRI), allowing flexible assignment of TX/RX buffers and filtering rules - essential for multi-node vehicle networks in ABS and EPS systems.
What is the role of the N2HET module in the TMS5700432BPZQQ1R, and how many pins does it support?
The N2HET (Next Generation High-End Timer) in the TMS5700432BPZQQ1R is a programmable coprocessor that handles precise timing tasks independently of the main CPU - including PWM generation, input capture, GPIO sequencing, and hardware angle generation for motor control. It supports up to 19 dedicated I/O pins (N2HET[0] through N2HET[29], with some shared functions), each with programmable suppression filters and drive strength. Its 128-word instruction RAM includes parity protection to ensure timing integrity in safety-critical loops.
Is the TMS5700432BPZQQ1R pin-compatible with other TMS570 family members?
Yes, the TMS5700432BPZQQ1R is pin-compatible with the TMS570LS0332PZ (100-pin PZ package) and shares identical mechanical footprint, power pin arrangement, and peripheral pin mapping. This allows direct PCB reuse when migrating between 384KB and 256KB flash variants. However, it is not pin-compatible with higher-pin-count variants (e.g., 144-pin PGE or 337-ball ZWT packages) due to differing peripheral multiplexing and I/O count.
TMS5700432BPZQQ1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Hercules™ TMS570 ARM® Cortex®-R
- Packaging:
- Tape & Reel (TR)
- 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:
- 384KB (384K 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:
TMS5700432BPZQQ1R FAQ
1.How can I place an order for TMS5700432BPZQQ1R through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS5700432BPZQQ1R 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 TMS5700432BPZQQ1R reliable?
The price and inventory of TMS5700432BPZQQ1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5700432BPZQQ1R is usually 5 days.
3.What payment methods are accepted for TMS5700432BPZQQ1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5700432BPZQQ1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS5700432BPZQQ1R?
TMS5700432BPZQQ1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS5700432BPZQQ1R 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 TMS5700432BPZQQ1R?
For technical support, including TMS5700432BPZQQ1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5700432BPZQQ1R requirements.
6.How does Aetrix verify that TMS5700432BPZQQ1R is sourced from the original manufacturer or authorized distributors?
All TMS5700432BPZQQ1R 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 TMS5700432BPZQQ1R meets industry standards.
7.What is the process for return or replacement of TMS5700432BPZQQ1R?
All TMS5700432BPZQQ1R units undergo pre-shipment inspection (PSI). If there is an issue with TMS5700432BPZQQ1R, 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 TMS5700432BPZQQ1R part is unused and in its original packaging.
Return procedure for TMS5700432BPZQQ1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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