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Texas Instruments TMS5700332BPZQQ1

Name: TMS5700332BPZQQ1
Brand: Texas Instruments
SKU: TMS5700332BPZQQ1
Price: 2.40 USD
Availability: InStock
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Part No.:: TMS5700332BPZQQ1

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: TMS5700332BPZQQ1.pdf

Description:: IC MCU 16/32B 256KB FLSH 100LQFP

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Product details

Overview

TMS5700332BPZQQ1 from Texas Instruments is an automotive-grade 32-bit RISC flash microcontroller with dual lockstep ARM Cortex-R4 CPUs, 256KB flash with ECC, 32KB RAM with ECC, and integrated safety features including BIST, voltage/clock monitoring, and error signaling - deployed in electric power steering and braking systems.

For engineers reviewing the TMS5700332BPZQQ1 datasheet, TMS5700332BPZQQ1 pinout, TMS5700332BPZQQ1 application, or TMS5700332BPZQQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed safety-critical peripheral support (DCAN, N2HET, eQEP, MibADC), and real-world selection guidance for ISO 26262 ASIL-D–targeted designs.

Technical Context

The TMS5700332BPZQQ1 implements a dual-core lockstep architecture where both Cortex-R4 CPUs execute identical instructions and compare results in real time; fault detection triggers ESM-driven nERROR assertion or interrupt generation. Its FMPLL generates internal clocks up to 80 MHz while supporting slip detection and external clock monitoring via dedicated oscillator pins (OSCIN/OSCOUT) and Kelvin ground (KELVIN_GND).

Peripheral safety is enforced through parity protection on N2HET instruction RAM (128 words), MibSPI1 buffers (128 words), DCAN mailboxes (32 for DCAN1, 16 for DCAN2), and MibADC result buffers (64 words); all flash and SRAM include single-bit correction/double-bit detection (ECC). The device uses a 96-channel vectored interrupt module (VIM) with parity and a memory protection unit (MPU) across 8 regions for CPU and HTU access control.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-R4 (no FPU), 80-MHz max operation, 1.66 DMIPS/MHz - enables deterministic real-time control with predictable timing for ASIL-D software partitioning.
Flash Memory	256KB program flash + 16KB emulated EEPROM, both with ECC - supports safe firmware updates and nonvolatile parameter storage with error correction.
RAM	32KB data RAM with ECC - provides fault-tolerant working memory for safety-critical runtime variables and stack operations.
ADC	12-bit MibADC with 16 input channels and 64-word parity-protected buffer - delivers high-resolution analog sensing for motor current/voltage feedback in EPS and ABS.
CAN Interfaces	Two DCAN controllers: DCAN1 (32 mailboxes, parity), DCAN2 (16 mailboxes, parity), CAN 2.0B compliant - enables redundant or distributed vehicle network communication at up to 1 Mbps.
N2HET	Next Generation High-End Timer with up to 19 programmable I/O pins and 128-word parity-protected instruction RAM - executes complex PWM, capture, and timing sequences offload from main CPU.
eQEP	Enhanced Quadrature Encoder Pulse module with A/B/I/S inputs - directly interfaces rotary encoders for precise motor position/speed feedback in closed-loop motion control.
Operating Temp	−40°C to +125°C ambient - qualified for under-hood automotive environments per AEC-Q100 Grade 1 requirements.

Pinout & Package

Package: 100-pin LQFP (PZ), 14.00 mm × 14.00 mm, green RoHS-compliant body.

Pin/Terminal	Circuit Role	Design Meaning
nRST	System Reset Input/Output	Drives external reset circuitry; glitch-filtered, pullup-enabled at power-up - ensures controlled cold/warm reset initiation and synchronization with external supervisors.
nERROR	Error Signaling Output	Active-low open-drain output asserted by ESM on critical faults (e.g., CPU mismatch, memory ECC double-bit error) - connects to system-level fault monitor or watchdog supervisor.
OSCIN / OSCOUT	Crystal Oscillator Interface	Differential crystal connection with dedicated KELVIN_GND - isolates oscillator ground noise to maintain clock stability and jitter performance for safety-critical timing.
CAN1TX / CAN1RX	CAN Bus Transceiver Interface	Direct connection to external CAN transceiver (e.g., TCAN1042); supports 1 Mbps operation with built-in loopback test capability - enables robust diagnostics and bus-off recovery.
ADIN[0]–ADIN[16]	Analog Input Channels	16 dedicated analog inputs (including ADIN[20], [21]) referenced to VCCAD/ADREFHI (3.3 V) and VSSAD/ADREFLO - supports simultaneous sampling of battery voltage, motor phase currents, and temperature sensors.
N2HET[0], [2], [4], [6], [8], [10], [12], [14], [16], [18], [22], [24], [26], [28], [29], [30], [31]	High-End Timer I/O	19 configurable N2HET pins supporting PWM generation, edge capture, GPIO, and hardware angle generation - used for motor gate drive timing, encoder signal conditioning, and LED status sequencing.
GIOA[0]–GIOA[7]	Interrupt-Capable GPIO	8 dedicated GPIO pins with configurable edge-triggered interrupts - enables fast response to safety-critical events like brake pedal press or collision sensor activation.

Key Features

Feature	Design Value
Dual Lockstep CPUs	Real-time comparison of instruction execution between two Cortex-R4 cores - detects transient or permanent CPU faults with sub-microsecond latency for ASIL-D compliance.
Built-In Self-Test (BIST)	Hardware-accelerated CPU logic and SRAM memory testing during startup and runtime - eliminates need for software-based diagnostic routines and reduces CPU load.
FMPLL with Slip Detection	Frequency-modulated PLL with continuous monitoring of output stability - identifies clock source failure or drift before it impacts real-time control loops.
Advanced JTAG Security Module (AJSM)	Secure debug access control with fuse-based locking and authentication - prevents unauthorized firmware extraction or modification in production ECUs.
Parity-Protected Peripherals	End-to-end parity on N2HET RAM, MibSPI1 buffers, DCAN mailboxes, and MibADC results - detects bit errors in timing-critical peripheral data paths without requiring software overhead.
Hercules Common Platform Architecture	Consistent memory map and peripheral register layout across TMS570 family - simplifies software porting between variants (e.g., TMS5700432PZ) and reduces qualification effort.

Applications

Electric Power Steering (EPS)	Braking Systems (ABS/ESC)
Use Scenario: Real-time torque assist calculation and motor phase current control in column-assist or rack-assist EPS modules. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms, managing N2HET-driven PWM outputs, and monitoring eQEP feedback for rotor position. Use Value: Dual-lockstep CPU and ECC memory ensure functional integrity during high-dynamic steering maneuvers; 12-bit ADC resolves <1 mV motor current variations for precise torque delivery.	Use Scenario: Pressure modulation and wheel speed monitoring in hydraulic ABS/ESC units for emergency braking and stability control. IC Role / Device Role / Timing Role: Central safety MCU coordinating DCAN communication with wheel speed sensors, processing MibADC inputs from pressure transducers, and driving solenoid valves via N2HET timers. Use Value: Parity-protected DCAN mailboxes prevent corrupted command transmission to hydraulic valves; 96-channel VIM enables deterministic response to wheel slip events within 5 µs.
Battery Management Systems (BMS)	Railway Communications
Use Scenario: Cell voltage monitoring, thermal management, and contactor control in high-voltage traction battery packs for EVs and HEVs. IC Role / Device Role / Timing Role: Safety-certified host controller interfacing with analog front-ends via MibADC, communicating SOC/SOH data over DCAN, and enforcing isolation barriers via GPIO-controlled relays. Use Value: 256KB ECC flash stores certified battery algorithms and fault logs; −40°C to +125°C operation supports under-battery-pack mounting without derating.	Use Scenario: Onboard train control unit (TCU) implementing ETCS Level 1/2 communication protocols and safety interlocking logic for signaling systems. IC Role / Device Role / Timing Role: SIL-4–certifiable controller managing LIN-based door status, DCAN-based ATP messaging, and N2HET-driven pulse outputs for track circuit supervision. Use Value: AJSM secures firmware against tampering; ESM nERROR output integrates with train-wide fail-safe shutdown bus for immediate power cutoff on critical faults.

Electric Power Steering (EPS)

Braking Systems (ABS/ESC)

Use Scenario: Real-time torque assist calculation and motor phase current control in column-assist or rack-assist EPS modules.

IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms, managing N2HET-driven PWM outputs, and monitoring eQEP feedback for rotor position.

Use Value: Dual-lockstep CPU and ECC memory ensure functional integrity during high-dynamic steering maneuvers; 12-bit ADC resolves <1 mV motor current variations for precise torque delivery.

Use Scenario: Pressure modulation and wheel speed monitoring in hydraulic ABS/ESC units for emergency braking and stability control.

IC Role / Device Role / Timing Role: Central safety MCU coordinating DCAN communication with wheel speed sensors, processing MibADC inputs from pressure transducers, and driving solenoid valves via N2HET timers.

Use Value: Parity-protected DCAN mailboxes prevent corrupted command transmission to hydraulic valves; 96-channel VIM enables deterministic response to wheel slip events within 5 µs.

Battery Management Systems (BMS)

Railway Communications

Use Scenario: Cell voltage monitoring, thermal management, and contactor control in high-voltage traction battery packs for EVs and HEVs.

IC Role / Device Role / Timing Role: Safety-certified host controller interfacing with analog front-ends via MibADC, communicating SOC/SOH data over DCAN, and enforcing isolation barriers via GPIO-controlled relays.

Use Value: 256KB ECC flash stores certified battery algorithms and fault logs; −40°C to +125°C operation supports under-battery-pack mounting without derating.

Use Scenario: Onboard train control unit (TCU) implementing ETCS Level 1/2 communication protocols and safety interlocking logic for signaling systems.

IC Role / Device Role / Timing Role: SIL-4–certifiable controller managing LIN-based door status, DCAN-based ATP messaging, and N2HET-driven pulse outputs for track circuit supervision.

Use Value: AJSM secures firmware against tampering; ESM nERROR output integrates with train-wide fail-safe shutdown bus for immediate power cutoff on critical faults.

Equivalent & Alternatives

The following parts are listed as comparable options for similar safety microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TMS5700432BPZQQ1	384KB flash (vs. 256KB), same 32KB ECC RAM, identical peripherals and pinout - superset variant with larger code space.	Preferred for new designs requiring >256KB firmware (e.g., OTA update partitions, dual-application images) without changing PCB layout.	Select when additional flash headroom is needed for future feature expansion or certification traceability artifacts.
SPC574SADK1AKLQ1	Power Architecture e200z4 core, 2MB flash, 256KB RAM, ASIL-D certified per ISO 26262 - different ISA, higher integration, no N2HET.	Used in European OEM platforms with legacy Power Architecture toolchains; lacks N2HET but offers integrated Ethernet and more CAN FD channels.	Choose for projects aligned with STMicroelectronics ecosystem or requiring CAN FD/Ethernet connectivity not supported by TMS5700332BPZQQ1.

Compared with TMS5700332BPZQQ1, the TMS5700432BPZQQ1 offers direct flash scalability without layout changes, while the SPC574SADK1AKLQ1 provides architectural divergence with CAN FD and Ethernet - making the former ideal for TI-platform continuity and the latter for multi-protocol gateway roles.

Availability

TMS5700332BPZQQ1 is available at Aetrix Electronics and suitable for electric power steering, braking systems, and battery-management systems requiring stable component supply across long-life automotive programs.

Supply support for TMS5700332BPZQQ1 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 automotive ICs, with decades of experience in functional safety and ASIL-certified microcontrollers.

The TMS570 Hercules™ platform was designed specifically for ISO 26262 ASIL-B/D and IEC 61508 SIL-3 safety-critical applications - delivering lockstep CPUs, memory ECC, and self-test capabilities in a scalable RISC architecture.

FAQ

What safety certifications apply to the TMS5700332BPZQQ1?

The TMS5700332BPZQQ1 is qualified to AEC-Q100 Grade 1 (−40°C to +125°C) and supports ISO 26262 ASIL-D development per TI's Functional Safety Manual (SPNU570). It includes hardware safety mechanisms - dual lockstep CPUs, ECC memory, BIST, and ESM - enabling certified safety applications such as EPS and ABS. TI provides FMEDA reports and safety analysis documentation for TMS5700332BPZQQ1 to support customer certification efforts.

Does the TMS5700332BPZQQ1 support CAN FD?

No, the TMS5700332BPZQQ1 supports only classical CAN 2.0B protocol at up to 1 Mbps via its two DCAN controllers. It does not implement CAN FD physical layer or protocol enhancements such as variable bit rate or extended data length. For CAN FD capability, designers should consider newer TI devices like the AM2732 or third-party alternatives such as the SPC574SADK1AKLQ1 - neither of which is pin-compatible with TMS5700332BPZQQ1.

How many N2HET channels does the TMS5700332BPZQQ1 support?

The TMS5700332BPZQQ1 supports 19 N2HET I/O terminals (N2HET[0], [2], [4], [6], [8], [10], [12], [14], [16], [18], [22], [24], [26], [28], [29], [30], [31], plus two multiplexed pins: MIBSPI1nCS[1]/EQEPS/N2HET[17] and MIBSPI1nCS[2]/N2HET[20]/N2HET[19]). All 19 are fully programmable for PWM, capture, compare, or GPIO functions, with 128-word instruction RAM protected by parity.

What is the role of the FLTP1 and FLTP2 pins on the TMS5700332BPZQQ1?

FLTP1 and FLTP2 are dedicated flash test pins intended solely for factory wafer-level and package-level testing. They must remain unconnected (NC) or tied only to isolated test pads in production hardware - never routed to system signals. TI explicitly warns that exposing FLTP1/FLTP2 to ESD events or operational voltages risks flash corruption or device malfunction. Their presence confirms the device's flash test infrastructure but imposes strict PCB layout constraints.

Can the TMS5700332BPZQQ1 operate without an external crystal?

Yes - the TMS5700332BPZQQ1 supports external clock input via GIOA[5]/EXTCLKIN (pin 10), allowing use of a precision oscillator module instead of a crystal. However, the internal oscillator circuitry (OSCIN/OSCOUT/KELVIN_GND) must still be properly terminated: OSCIN requires a 4–20 MHz crystal or clock source, OSCOUT is output-only, and KELVIN_GND must connect to a clean analog ground plane. Using EXTCLKIN bypasses crystal drive circuitry but retains full FMPLL functionality and clock monitoring.

TMS5700332BPZQQ1 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:: 256KB (256K 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:

TMS5700332BPZQQ1 FAQ

1.How can I place an order for TMS5700332BPZQQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TMS5700332BPZQQ1 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 TMS5700332BPZQQ1 reliable?

The price and inventory of TMS5700332BPZQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS5700332BPZQQ1 is usually 5 days.

3.What payment methods are accepted for TMS5700332BPZQQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS5700332BPZQQ1 transactions.

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4.How is shipping managed for TMS5700332BPZQQ1?

TMS5700332BPZQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TMS5700332BPZQQ1 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 TMS5700332BPZQQ1?

For technical support, including TMS5700332BPZQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS5700332BPZQQ1 requirements.

6.How does Aetrix verify that TMS5700332BPZQQ1 is sourced from the original manufacturer or authorized distributors?

All TMS5700332BPZQQ1 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 TMS5700332BPZQQ1 meets industry standards.

7.What is the process for return or replacement of TMS5700332BPZQQ1?

All TMS5700332BPZQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMS5700332BPZQQ1, 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 TMS5700332BPZQQ1 part is unused and in its original packaging.

Return procedure for TMS5700332BPZQQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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