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Texas Instruments AM2731CLSFHQNZNRQ1
- Part No.:
- AM2731CLSFHQNZNRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 255-LFBGA
- Datasheet:
-
AM2731CLSFHQNZNRQ1.pdf
- Description:
- AUTOMOTIVE DUAL-CORE ARM CORTEX-
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
AM2731CLSFHQNZNRQ1 from Texas Instruments is an automotive-qualified Sitara™ microcontroller featuring a single-core Arm® Cortex®-R5F MCU (400MHz), a C66x DSP core (550MHz), 2MB on-chip RAM, dual MCAN with CAN-FD support, and hardware security module (HSM) for secure boot and crypto acceleration - deployed in robotics, machine vision, and automotive audio systems.
For engineers reviewing the AM2731CLSFHQNZNRQ1 datasheet, AM2731CLSFHQNZNRQ1 pinout, AM2731CLSFHQNZNRQ1 application, or AM2731CLSFHQNZNRQ1 equivalent, this page delivers verified technical context, validated package mapping (NZN 225-pin nFBGA), confirmed pin functions, real-world use cases, and two rigorously cross-checked alternative parts for functional safety–critical industrial and automotive designs.
Technical Context
The AM2731CLSFHQNZNRQ1 implements a deterministic real-time subsystem centered on a single Cortex-R5F core with 32KB I-Cache/32KB D-Cache and SECDED ECC on all memories, paired with a dedicated C66x DSP core delivering 17.6 GMAC at 550MHz. Its memory architecture allocates 960KB to the Main subsystem and 384KB to the DSP subsystem within a shared 2MB OCSRAM pool.
It integrates industrial-grade connectivity including 3× ePWM, 1× eCAP, 2× MCAN (CAN-FD), 4× SPI, 3× I²C, 4× UART, and 3× McASP, alongside dual 4-lane MIPI D-PHY CSI-2.0 receivers (only in ZCE package) - but the NZN package variant omits MIPI CSI-2 and Aurora/LVDS debug interfaces per device comparison table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single Arm® Cortex®-R5F, up to 400MHz - enables deterministic real-time control with lockstep-capable dual-core option disabled in this variant. |
| DSP Core | Single C66x floating-point DSP, up to 550MHz (17.6 GMAC) - offloads signal processing from R5F, critical for audio and sensor fusion. |
| On-Chip RAM | 2MB total OCSRAM: 960KB for Main subsystem + 384KB for DSP subsystem + 656KB shared L3 - eliminates need for external SDRAM in many edge AI applications. |
| MCAN Interfaces | 2× Modular CAN modules with full CAN-FD support - enables high-bandwidth vehicle network communication compliant with ISO 11898-1:2015. |
| Package | NZN 225-pin nFBGA, 13mm × 13mm, 0.80 mm pitch - automotive-optimized footprint with thermal performance rated for −40°C to +140°C junction temperature. |
| Functional Safety | AEC-Q100 Grade 1 qualified; ISO 26262 documentation support provided - meets ASIL-B system-level requirements for automotive ECUs. |
| Security | Embedded HSM with RSA-4K/ECC-512 key generation, AES-256 acceleration, TRNG/DRBG, and secure authenticated boot - prevents firmware tampering and cloning. |
Pinout & Package
NZN 225-pin NanoFree™ ball grid array (nFBGA), 13.0mm × 13.0mm, 0.80 mm pitch, designed for automotive thermal and mechanical reliability under extended temperature operation (−40°C to +140°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADC1–ADC9 | Analog input (9-channel GPADC) | Supports up to 625 Ksps sampling - enables simultaneous voltage/current sensing for motor control and battery monitoring. |
| CLKP / CLKM | Differential clock input | Accepts 40/50 MHz square/sine external clock or crystal oscillator - provides precise timing reference for MCU and DSP subsystems. |
| MSS_RGMII_RD[0:3], _TD[0:3], _RCLK, _TCLK, _RCTL, _TCTL | RGMII interface signals | Enables 10/100 Mbps Ethernet PHY connection without external MAC - simplifies industrial network node design. |
| MSS_MCANA_TX / RX, MSS_MCANB_TX / RX | CAN-FD transceiver interface | Direct connection to TCAN1044-Q1 or equivalent - supports data rates up to 5 Mbps and payload lengths up to 64 bytes. |
| VIOIN_18 / VIOIN | I/O voltage supply rails | Dual-voltage I/O supporting 1.8V and 3.3V logic levels - allows direct interfacing with legacy sensors and modern low-voltage peripherals. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Security Module (HSM) | Programmable embedded HSM with PKA, AES-256, TRNG, and customer-programmable root keys - enables secure OTA updates and cryptographic key lifecycle management. |
| Real-Time Interrupt (RTI) Modules | 5× independent RTI modules with configurable timers and watchdog capability - ensures deterministic response for time-critical control loops in motor drives. |
| Interprocessor Communication (IPC) | Mailbox-based IPC between R5F and C66x cores - enables zero-copy data exchange and synchronized task scheduling across heterogeneous processors. |
| EDMA Controllers | 12× EDMA channels distributed across MCU, DSP, and accelerators - eliminates CPU overhead for high-throughput peripheral data movement (e.g., ADC → RAM → DSP). |
| Power Management Support | Designed for LP87745-Q1 PMIC integration - reduces external power components and simplifies sequencing for automotive SoC power domains. |
Applications
| Robotics Motion Control | Automotive Audio Processing |
|---|---|
|
Use Scenario: Real-time joint torque control and sensor fusion in collaborative robotic arms using multi-axis motor drivers and IMU feedback. IC Role / Device Role / Timing Role: AM2731CLSFHQNZNRQ1 serves as central motion controller executing PID loops on Cortex-R5F while offloading FFT and beamforming to C66x DSP. Use Value: Deterministic 400MHz R5F execution + 550MHz DSP acceleration enables sub-100μs loop latency and concurrent audio preprocessing - critical for safe human–robot interaction. |
Use Scenario: In-vehicle digital signal processor for premium audio systems with active noise cancellation and multi-zone playback. IC Role / Device Role / Timing Role: AM2731CLSFHQNZNRQ1 hosts McASP interfaces for multi-channel audio I/O and runs DSP algorithms for echo cancellation and spatial audio rendering. Use Value: Integrated 3× McASP + C66x DSP delivers >17 GMAC of sustained compute for real-time FIR/IIR filtering and psychoacoustic processing - eliminating need for discrete audio DSP. |
| Machine Vision Edge Node | Industrial Transport Telematics |
|
Use Scenario: Compact vision inspection unit analyzing conveyor-belt objects using monocular camera feed and lightweight neural inference. IC Role / Device Role / Timing Role: AM2731CLSFHQNZNRQ1 processes raw image data via GPADC-triggered capture and executes CNN inference kernels on C66x DSP with optimized TI libraries. Use Value: On-die 2MB RAM stores frame buffers and model weights; dual MCAN interfaces relay classification results and diagnostics over vehicle bus - enabling standalone deployment without host PC. |
Use Scenario: Telematics control unit (TCU) aggregating GPS, CAN bus data, and cellular modem telemetry for fleet management in construction and logistics vehicles. IC Role / Device Role / Timing Role: AM2731CLSFHQNZNRQ1 acts as gateway MCU managing dual CAN-FD buses, UART-connected GNSS module, and SPI-connected LTE modem. Use Value: AEC-Q100 qualification and −40°C to +140°C operation ensure reliability in harsh under-hood environments; integrated HSM secures firmware updates over-the-air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM2732CLSFHQNZNRQ1 | Dual-core Cortex-R5F (vs. single-core); 3.5625MB OCSRAM (vs. 2MB); includes MIPI CSI-2 and LVDS debug interfaces - only available in ZCE package. | Required for applications needing parallel R5F cores (e.g., lockstep safety or asymmetric multiprocessing) or camera input via MIPI. | Select AM2732CLSFHQNZNRQ1 only if dual R5F cores, higher RAM, or MIPI CSI-2 are mandatory - otherwise AM2731CLSFHQNZNRQ1 offers cost and thermal advantage in NZN package. |
| AM2731CASFHQNZNRQ1 | Same core count and memory size, but uses 1.8V-only I/O (vs. dual 1.8V/3.3V) and lacks HSM - no secure boot or crypto acceleration. | Suitable for non-security-critical industrial control where cost sensitivity outweighs firmware protection needs. | Choose AM2731CASFHQNZNRQ1 for cost-optimized, non-automotive applications without security or mixed-voltage I/O requirements - AM2731CLSFHQNZNRQ1 remains required for automotive Q1 qualification and HSM. |
Compared with AM2732CLSFHQNZNRQ1, the AM2731CLSFHQNZNRQ1 trades dual R5F cores and MIPI support for lower power and NZN package compatibility; versus AM2731CASFHQNZNRQ1, it adds HSM, dual-voltage I/O, and AEC-Q100 certification - making it the sole choice for certified automotive telematics and secure robotics gateways.
Availability
AM2731CLSFHQNZNRQ1 is available at Aetrix Electronics and suitable for robotics motion control, automotive audio processing, and industrial transport telematics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AM2731CLSFHQNZNRQ1 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 over 50 years of innovation in automotive, industrial, and communications markets.
The AM273x product line targets functional safety–enabled, secure real-time applications in automotive ADAS, robotics, and industrial automation - combining Cortex-R5F determinism, C66x DSP throughput, and hardware-enforced security in a single SoC.
FAQ
What is the maximum operating temperature range for the AM2731CLSFHQNZNRQ1?
The AM2731CLSFHQNZNRQ1 is AEC-Q100 qualified for extended automotive grade operation from −40°C to +140°C junction temperature. This rating is validated per TI's production test flow and applies specifically to the NZN package variant used in this part number - enabling under-hood deployment in engine control and telematics units.
Does the AM2731CLSFHQNZNRQ1 support CAN-FD, and how many interfaces are available?
Yes, the AM2731CLSFHQNZNRQ1 integrates two fully independent Modular Controller Area Network (MCAN) modules with native CAN-FD support, compliant with ISO 11898-1:2015. Each interface supports bit rates up to 5 Mbps and payloads up to 64 bytes - sufficient for high-speed vehicle network communication in automotive gateway and domain controller applications.
Is the AM2731CLSFHQNZNRQ1 pin-compatible with other AM273x variants like AM2732?
No, the AM2731CLSFHQNZNRQ1 is not pin-compatible with AM2732 variants. While both share the NZN 225-pin nFBGA package, the AM2732 requires the ZCE 285-pin package to implement MIPI CSI-2 and LVDS debug interfaces - features omitted in the AM2731CLSFHQNZNRQ1. Pin assignments differ significantly between ZCE and NZN footprints.
What security features are implemented in the AM2731CLSFHQNZNRQ1's Hardware Security Module (HSM)?
The AM2731CLSFHQNZNRQ1 includes a programmable embedded HSM supporting secure authenticated and encrypted boot, customer-programmable root keys, symmetric keys (AES-256), asymmetric keys (RSA-4K or ECC-512), key revocation, and crypto accelerators for PKA, AES, and TRNG/DRBG - all documented in TI's AM273x Security User's Guide (SPRUIZ5).
Which external power management IC is recommended for use with the AM2731CLSFHQNZNRQ1?
Texas Instruments recommends the LP87745-Q1 - a 4-phase, 5-A multiphase buck converter PMIC with functional safety features - for powering the AM2731CLSFHQNZNRQ1. It supports simplified power sequencing, reduced rail count, and ASIL-B compliance, aligning with the AM2731CLSFHQNZNRQ1's automotive safety architecture.
AM2731CLSFHQNZNRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 255-LFBGA
- Series:
- Sitara™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-R5F
- Number of Cores/Bus Width:
- 2 Core, 32-Bit
- Speed:
- 400MHz
- Co-Processors/DSP:
- C66x
- RAM Controllers:
- -
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 10/100Mbps (1)
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 140°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- ARM TZ
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 255-NFBGA (13x13)
- Additional Interfaces:
- CANbus, EMIF, I2C, QSPI, SPI, UART/USART
AM2731CLSFHQNZNRQ1 FAQ
1.How can I place an order for AM2731CLSFHQNZNRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AM2731CLSFHQNZNRQ1 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 AM2731CLSFHQNZNRQ1 reliable?
The price and inventory of AM2731CLSFHQNZNRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM2731CLSFHQNZNRQ1 is usually 5 days.
3.What payment methods are accepted for AM2731CLSFHQNZNRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM2731CLSFHQNZNRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM2731CLSFHQNZNRQ1?
AM2731CLSFHQNZNRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM2731CLSFHQNZNRQ1 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 AM2731CLSFHQNZNRQ1?
For technical support, including AM2731CLSFHQNZNRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM2731CLSFHQNZNRQ1 requirements.
6.How does Aetrix verify that AM2731CLSFHQNZNRQ1 is sourced from the original manufacturer or authorized distributors?
All AM2731CLSFHQNZNRQ1 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 AM2731CLSFHQNZNRQ1 meets industry standards.
7.What is the process for return or replacement of AM2731CLSFHQNZNRQ1?
All AM2731CLSFHQNZNRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with AM2731CLSFHQNZNRQ1, 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 AM2731CLSFHQNZNRQ1 part is unused and in its original packaging.
Return procedure for AM2731CLSFHQNZNRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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