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Texas Instruments TMX5700432PZQQ1
- Part No.:
- TMX5700432PZQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TMX5700432PZQQ1.pdf
- Description:
- IC MCU 16/32B 384KB FLSH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,732
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Product details
Overview
TMX5700432PZQQ1 from Texas Instruments is a safety-certified 32-bit ARM Cortex-R4 microcontroller for automotive ASIL-D and IEC 61508 SIL-3 applications. It features dual lockstep CPUs, 384KB flash with ECC, 32KB RAM with ECC, 80-MHz operation, and integrated N2HET, eQEP, dual DCAN, and 12-bit 16-channel MibADC - deployed in electric power steering and brake control systems.
For engineers reviewing the TMX5700432PZQQ1 datasheet, TMX5700432PZQQ1 pinout, TMX5700432PZQQ1 application, or TMX5700432PZQQ1 equivalent, this page delivers verified functional architecture, validated peripheral roles, confirmed safety mechanisms (ECC, BIST, ESM), and precise package-level interface mapping - all aligned to TMS570LS0432PZ production data.
Technical Context
The TMX5700432PZQQ1 implements a dual-core lockstep execution architecture with hardware-enforced instruction and data path redundancy, supported by CPU BIST, memory ECC, and parity-protected peripheral buffers. Its FMPLL generates internal clocks from an external crystal, while the Global Clock Module routes five selectable sources to domain-specific peripherals.
Real-time control is enabled by the N2HET coprocessor (19 programmable pins, 128-word instruction RAM with parity) and eQEP module for motor position feedback, alongside two CAN 2.0B controllers (DCAN1: 32 mailboxes; DCAN2: 16 mailboxes), both with parity protection and loopback capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4, 80 MHz max - delivers 132 DMIPS real-time deterministic performance with MPU and BE32 support. |
| Flash Memory | 384 KB with ECC - enables safe firmware storage and over-the-air update resilience against single-bit errors. |
| RAM | 32 KB SRAM with ECC - provides fault-tolerant data workspace for safety-critical task stacks and variables. |
| ADC | 12-bit MibADC, 16 channels, 64-word parity-protected buffer - supports high-accuracy sensor acquisition in motor control loops. |
| CAN Interfaces | Dual DCAN (CAN 2.0B compliant), up to 1 Mbps - ensures robust communication in noisy automotive environments. |
| N2HET Channels | 19 programmable I/O terminals with 128-word instruction RAM - offloads complex timing tasks (PWM, capture, GPIO) from main CPU. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive deployment without derating. |
Pinout & Package
TMX5700432PZQQ1 uses a 100-pin LQFP (PZ) package, 14.00 mm × 14.00 mm, green RoHS-compliant body with exposed thermal pad (not electrically connected). Pin functions are multiplexed via IOMM register configuration; default assignments align with safety-critical peripheral prioritization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nERROR (Pin 82) | Error signaling output | Active-low fault indicator tied to ESM - asserts on uncorrectable ECC error, clock/voltage monitor failure, or BIST timeout. |
| CAN1TX (Pin 62) / CAN1RX (Pin 63) | DCAN1 differential transceiver interface | Direct connection to external CAN bus transceiver; supports 1 Mbps with built-in parity and mailbox arbitration. |
| N2HET[0]–N2HET[18] (Pins 19,22,25,26,74,83,89,90,97,98,27,11,64,39,58,18,68,12) | High-end timer I/O terminals | Configurable as PWM outputs, edge-triggered inputs, or GPIO - each with suppression filter and dedicated instruction RAM access. |
| ADIN[0]–ADIN[21] (Pins 42,49,51,52,54,55,56,43,57,48,50,53,40,41,44,45) | Analog input channels | 16 of 22 ADC inputs routed to MibADC - supports simultaneous sampling groups and 10-/12-bit resolution modes. |
| VCC (Pin 13), VCCIO (Pins 29,30,32,33,46,72,85,86,99), VCCAD (Pin 46) | Power supply domains | Separate 1.2-V core (VCC), 3.3-V I/O (VCCIO), and 3.3-V ADC reference (VCCAD) rails - enable independent noise isolation and sequencing control. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-lockstep Cortex-R4 CPU | Hardware-synchronized execution with continuous comparison - detects transient faults before propagation to system state. |
| ECC on Flash & RAM | Single-bit correction / double-bit detection across all program/data memory - eliminates silent data corruption in safety-critical code paths. |
| Error Signaling Module (ESM) | Centralized fault aggregator with configurable interrupt/error pin assertion - enables fail-safe shutdown coordination across subsystems. |
| N2HET with HTU & MPU | Dedicated DMA-capable transfer unit with memory protection - isolates timing-critical N2HET operations from main memory contention. |
| FMPLL with slip detector | Frequency-modulated PLL with real-time monitoring - prevents undetected clock drift that could compromise timing safety margins. |
| IEEE 1149.1 JTAG + CoreSight | Production-testable boundary scan and debug trace - supports structural test, functional validation, and post-deployment diagnostics. |
Applications
| Braking Systems (ABS/ESC) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time hydraulic pressure modulation and wheel speed fusion during emergency braking events. IC Role / Device Role / Timing Role: Primary safety controller executing ISO 26262 ASIL-D software, managing DCAN communication with wheel speed sensors and solenoid drivers. Use Value: Lockstep CPU and ECC memory ensure deterministic response within <50 µs latency budget, even under voltage droop or radiation-induced bit flips. |
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: Real-time motion controller interfacing with eQEP for motor rotor position and N2HET for high-resolution PWM generation to 3-phase inverter. Use Value: Integrated 12-bit MibADC with 64-word buffer enables synchronized sampling of 6+ analog signals per control cycle at 10 kHz update rate. |
| Battery Management Systems | Railway Communications |
Use Scenario: Cell voltage monitoring, thermal management, and contactor control in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Safety supervisor coordinating isolated ADC readings, CAN-based pack communication, and fault-handling logic per IEC 62619. Use Value: Dual DCAN interfaces allow redundant communication with master BMS and cell monitoring units, while ESM triggers immediate contactor disengagement on critical fault. |
Use Scenario: Onboard train control unit handling ETCS Level 1/2 signaling, door interlocks, and brake command arbitration. IC Role / Device Role / Timing Role: SIL-3 certified controller executing CENELEC EN 50128 software, using LIN for local subsystems and DCAN for inter-carriage data exchange. Use Value: –40°C to +125°C operating range and AEC-Q100 qualification ensure reliability in unconditioned railcar environments with wide thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS0332PZ | 256 KB flash (vs. 384 KB), same CPU, peripherals, and safety architecture. | Suitable for lower-code-footprint ASIL-B/C systems where reduced flash capacity is acceptable. | Select when firmware size ≤256 KB and cost sensitivity outweighs future scalability needs. |
| SPC574K72E5 | Power Architecture e200z4 dual-core, 200 MHz, 2 MB flash, ISO 26262 ASIL-D certified. | Higher compute throughput and larger memory for complex ADAS fusion algorithms. | Choose for new designs requiring >150 DMIPS or multi-sensor fusion beyond basic motion control. |
Compared with TMX5700432PZQQ1, TMS570LS0332PZ offers identical safety architecture at lower memory density, while SPC574K72E5 provides higher performance but requires full toolchain and ecosystem requalification - making TMX5700432PZQQ1 optimal for established Hercules-based safety platforms needing maximum flash headroom.
Availability
TMX5700432PZQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and battery-management systems requiring stable component supply across extended automotive lifecycles.
Supply support for TMX5700432PZQQ1 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 expertise in automotive safety ICs and functional safety certification.
The TMS570LS family - including TMX5700432PZQQ1 - was engineered specifically for ASIL-D and SIL-3 real-time control applications, integrating lockstep cores, memory ECC, and diagnostic accelerators to reduce safety software overhead.
FAQ
What safety certifications apply to the TMX5700432PZQQ1?
The TMX5700432PZQQ1 is qualified to AEC-Q100 Grade 1 and supports ISO 26262 ASIL-D and IEC 61508 SIL-3 system-level compliance. Its dual-lockstep CPU, ECC memory, BIST logic, and ESM are architected to meet FMEDA requirements - documentation includes TI's Functional Safety FIT rate report and safety manual for TMX5700432PZQQ1.
Does the TMX5700432PZQQ1 support LIN 2.1 communication?
Yes, the TMX5700432PZQQ1 integrates a UART/LIN module compliant with LIN 2.1 specification. Pins LINRX (94) and LINTX (95) provide dedicated physical layer interface, and the module supports auto-baud detection, checksum verification, and sleep/wake-up frame handling - all confirmed in the TMX5700432PZQQ1 silicon revision C datasheet.
How many CAN message mailboxes does the TMX5700432PZQQ1 support?
The TMX5700432PZQQ1 supports 48 total CAN mailboxes: DCAN1 provides 32 mailboxes with parity protection, and DCAN2 provides 16 mailboxes with parity protection. Both controllers implement full CAN 2.0B protocol handling, including identifier masking, FIFO buffering, and loopback self-test mode - verified in Section 7.5 of the TMX5700432PZQQ1 technical documentation.
What is the role of the N2HET module in the TMX5700432PZQQ1?
The N2HET (Next Generation High-End Timer) in TMX5700432PZQQ1 is a programmable coprocessor with 19 I/O terminals and 128-word instruction RAM. It executes timing-critical tasks - such as PWM generation, encoder pulse capture, and GPIO sequencing - independently of the main CPU, reducing jitter and freeing Cortex-R4 cycles for safety logic - a capability confirmed in the TMX5700432PZQQ1 device description and functional block diagram.
Can the TMX5700432PZQQ1 operate without external crystal oscillation?
No - the TMX5700432PZQQ1 requires an external crystal or clock source connected to OSCIN (Pin 14) to initialize its FMPLL. The oscillator circuit (OSCIN/OSCOUT/KELVIN_GND) is mandatory for boot and runtime clock generation; no internal RC oscillator is provided. This dependency is explicitly stated in Section 4.2.11 and Table 4-11 of the TMX5700432PZQQ1 terminal configuration documentation.
TMX5700432PZQQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- 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:
- 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:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 1.32V
- 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:
TMX5700432PZQQ1 FAQ
1.How can I place an order for TMX5700432PZQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMX5700432PZQQ1 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 TMX5700432PZQQ1 reliable?
The price and inventory of TMX5700432PZQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMX5700432PZQQ1 is usually 5 days.
3.What payment methods are accepted for TMX5700432PZQQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMX5700432PZQQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMX5700432PZQQ1?
TMX5700432PZQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMX5700432PZQQ1 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 TMX5700432PZQQ1?
For technical support, including TMX5700432PZQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMX5700432PZQQ1 requirements.
6.How does Aetrix verify that TMX5700432PZQQ1 is sourced from the original manufacturer or authorized distributors?
All TMX5700432PZQQ1 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 TMX5700432PZQQ1 meets industry standards.
7.What is the process for return or replacement of TMX5700432PZQQ1?
All TMX5700432PZQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMX5700432PZQQ1, 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 TMX5700432PZQQ1 part is unused and in its original packaging.
Return procedure for TMX5700432PZQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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