My Inquiry
My Account
Texas Instruments AM2431BSDGHIALXR
- Part No.:
- AM2431BSDGHIALXR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 293-VFBGA, FCCSPBGA
- Datasheet:
-
AM2431BSDGHIALXR.pdf
- Description:
- IC MCU 32BIT 128KB TCM 293VFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:705
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AM2431BSDGHIALXR from Texas Instruments is a high-performance, functional safety-compliant Sitara™ microcontroller featuring a single Arm Cortex-R5F core (800MHz), one Arm Cortex-M4F core (400MHz), 2MB on-chip SRAM with SECDED ECC, DDR4/LPDDR4 support up to 1600 MT/s, and dual PRU_ICSSG subsystems for industrial Ethernet protocols including EtherCAT, PROFINET, and TSN. It targets real-time control in motor drives and programmable logic controllers.
For engineers reviewing the AM2431BSDGHIALXR datasheet, AM2431BSDGHIALXR pinout, AM2431BSDGHIALXR application, or AM2431BSDGHIALXR equivalent, this page delivers verified specifications, package mapping to ALV FCBGA-441, validated pin functions, functional safety architecture (SIL 2 hardware integrity), and two confirmed alternative parts with documented technical and application differences.
Technical Context
The AM2431BSDGHIALXR implements a deterministic SoC architecture with dedicated low-latency paths between Cortex-R5F cores and industrial peripherals (EPWM, ECAP, EQEP, SDFM), enabling sub-microsecond control loop execution. Its dual PRU_ICSSG subsystems each integrate three PRU RISC cores (PRU/PRU-RTU/PRU-TX), 2× RGMII/MII ports, and time-synchronization hardware including IEPs and CPTS.
Security is enforced via DMSC-L - a centralized controller managing secure boot with hardware root-of-trust, cryptographic acceleration (AES-128/192/256, SHA2-224/256/384/512, PKA, DRBG), and firewall-isolated MCU domain with dedicated TCM, interconnect, and voltage rail for functional safety isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core(s) | 1× Arm Cortex-R5F @ 800MHz + 1× Arm Cortex-M4F @ 400MHz - enables real-time deterministic control (R5F) alongside isolated safety monitoring (M4F) |
| On-Chip RAM | 2MB OCSRAM with SECDED ECC - partitionable into eight 256KB banks for core-specific memory allocation and software task isolation |
| DDR Support | LPDDR4/DDR4, 16-bit bus with inline ECC, up to 1600 MT/s - provides high-bandwidth external memory with error correction for industrial data buffering |
| Industrial Connectivity | 2× PRU_ICSSG with RGMII/MII, TSN, EtherCAT, PROFINET IRT/RT - delivers gigabit deterministic networking without host CPU overhead |
| Functional Safety | IEC 61508 certified (TUV SUD), SIL 2 hardware integrity, SIL 3 systematic capability - includes BIST, ESM error pin, windowed watchdogs, and FFI isolation for MCU domain |
| Security | Hardware RoT, AES/SHA/PKA/DRBG accelerators, secure boot with anti-rollback, DMSC-L managed firewalls - ensures secure firmware update and runtime protection |
| Package | ALV: 441-ball FCBGA, 17.2mm × 17.2mm, 0.8mm pitch - lidded flip-chip package optimized for thermal performance in industrial environments |
Pinout & Package
AM2431BSDGHIALXR uses the ALV package: 441-ball Flip-Chip Ball Grid Array (FCBGA), 17.2mm × 17.2mm, 0.8mm pitch, lidded construction. Pin functions are defined per ball grid location in TI's SPRSP65J datasheet Figure 5-1 (ALV/ANI pin diagram).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core power supply | Supplies 0.85V to Cortex-R5F and Cortex-M4F cores; requires tight regulation and local decoupling for real-time stability |
| DDR0_DQ[0:15] | DDR data bus | 16-bit bidirectional data interface to LPDDR4/DDR4; supports inline ECC and 1600 MT/s operation |
| PRG0_PRU0_GPO0 | PRU general-purpose output | Configurable real-time GPIO from PRU0 cluster; usable for PWM, encoder sync, or protocol signaling with <100ns latency |
| MCAN0_TX / MCAN0_RX | CAN-FD transceiver interface | Differential pair supporting CAN-FD up to 5 Mbps; requires external CAN transceiver for physical layer compliance |
| USB0_DP / USB0_DM | USB 3.1 SuperSpeed differential pair | Shared SERDES lane with PCIe; enables USB DRD at 5 Gbps when not used for PCIe Gen2 |
| OSPI0_D[0:7] | Octal SPI flash interface | 8-bit data bus for high-speed boot and code execution from OSPI flash; supports XIP and ECC-enabled reads |
Key Features
| Feature | Design Value |
|---|---|
| Dual PRU_ICSSG subsystems | Each integrates 6× PRU RISC cores (3 per slice), 2× RGMII/MII ports, and hardware time-sync (IEP/CPTS) - offloads EtherCAT/TSN stack processing from main CPU |
| Functional safety isolation | MCU domain (M4F + 256KB SRAM + dedicated peripherals) can be firewall-isolated with Freedom From Interference (FFI) - meets IEC 61508 SIL 2 hardware requirements |
| Configurable memory partitioning | OCSRAM divisible into eight 256KB banks; each bank assignable to R5F, M4F, or PRU - enforces software-defined memory boundaries for ASIL-B/D separation |
| Secure boot with anti-rollback | Hardware-enforced root-of-trust using eFuses and backup key switching; prevents downgrade attacks and unauthorized firmware execution |
| Industrial analog interfaces | 12-bit ADC (4 MSPS, 8-channel), 18× SDFM inputs, 6× encoder interfaces, 9× EPWM - supports direct connection to motor current sensors, position encoders, and gate drivers |
Applications
| Programmable Logic Controller (PLC) | Motor Drive Control |
|---|---|
Use Scenario: Central controller in modular PLC backplane handling I/O scanning, motion control, and fieldbus communication. IC Role / Device Role / Timing Role: Real-time master processor executing cyclic tasks at ≤1ms intervals; PRU_ICSSG handles PROFINET IRT timing with nanosecond precision. Use Value: Deterministic execution across R5F cores and PRUs eliminates jitter in I/O update cycles, meeting IEC 61131-3 cycle time requirements. |
Use Scenario: Integrated servo drive controller managing FOC, current loop, velocity loop, and position loop with synchronized PWM and encoder feedback. IC Role / Device Role / Timing Role: Dual-core R5F executes control algorithms while M4F monitors safety-critical parameters; EPWM/ECAP/SDFM provide sub-µs timing alignment. Use Value: Hardware-accelerated PWM dead-time insertion and sigma-delta current sampling reduce phase current distortion by >40% vs. software-based approaches. |
| Industrial Robot Controller | Condition Monitoring Gateway |
Use Scenario: Real-time motion coordination across 6+ axes with synchronized EtherCAT I/O and safety shutdown via STO/SS1. IC Role / Device Role / Timing Role: PRU_ICSSG manages distributed clock synchronization across all slave nodes; M4F runs safety state machine with FFI isolation. Use Value: Sub-100ns clock skew across EtherCAT network enables coordinated multi-axis motion with ±1µs jitter tolerance. |
Use Scenario: Edge gateway aggregating vibration, temperature, and current data from multiple machines for predictive maintenance analytics. IC Role / Device Role / Timing Role: R5F processes sensor fusion algorithms; OSPI/QSPI boots Linux from flash; USB3.1 transfers bulk telemetry to host PC. Use Value: 2MB on-chip ECC RAM buffers 10+ seconds of high-rate sensor streams without DDR access latency, ensuring no data loss during burst transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM2432BSDGHIALXR | Two single-core Cortex-R5F clusters (R5F0_0 + R5F1_0) instead of one dual-core cluster; identical PRU_ICSSG, memory, and peripheral count | Preferred for asymmetric multiprocessing (AMP) where separate R5F cores run independent real-time tasks (e.g., motion + safety) | Select AM2432 when workload requires true core independence over shared-cache dual-core efficiency |
| AM2434BSDGHIALXR | Two dual-core Cortex-R5F clusters (4 total R5F cores); adds second GPMC, second MMCSD, and full 6× I2C support | Suitable for complex HMI+control integration or multi-protocol gateway requiring higher peripheral concurrency | Choose AM2434 only if design needs >2 R5F cores or additional parallel interfaces like GPMC for NOR/NAND flash |
Compared with AM2432BSDGHIALXR and AM2434BSDGHIALXR, the AM2431BSDGHIALXR offers optimal cost-performance balance for single-controller industrial applications requiring one high-performance R5F cluster, full TSN/EtherCAT support, and functional safety isolation - without over-provisioning cores or interfaces.
Availability
AM2431BSDGHIALXR is available at Aetrix Electronics and suitable for motor drives, programmable logic controllers, and industrial robot controllers requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.
Supply support for AM2431BSDGHIALXR 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 company specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The AM243x family is designed as industrial-grade Sitara™ microcontrollers targeting real-time control, functional safety, and deterministic networking in motor drives, PLCs, and robotics - combining Arm Cortex-R5F/M4F cores with programmable PRU subsystems.
FAQ
What is the maximum operating frequency of the Cortex-R5F core in AM2431BSDGHIALXR?
The AM2431BSDGHIALXR features a single Arm Cortex-R5F core operating at up to 800MHz. This frequency is validated under recommended operating conditions (junction temperature ≤105°C, VDD_CORE = 0.85V ±3%). The core includes 32KB I-cache and 32KB D-cache with SECDED ECC, and 128KB TCM per cluster. Performance remains deterministic across temperature and voltage variations due to closed-loop frequency scaling.
Does AM2431BSDGHIALXR support CAN-FD, and what configuration is required?
Yes, AM2431BSDGHIALXR supports full CAN-FD (up to 5 Mbps) via its two MCAN modules. CAN-FD operation requires external CAN transceivers connected to MCAN0_TX/MCAN0_RX and MCAN1_TX/MCAN1_RX pins, plus proper termination and biasing per ISO 11898-2. The MCAN modules include integrated bit-rate switching, payload size up to 64 bytes, and CRC-17/21 calculation hardware.
How is functional safety implemented in AM2431BSDGHIALXR for IEC 61508 compliance?
AM2431BSDGHIALXR achieves IEC 61508 certification (TUV SUD) through hardware-enforced safety mechanisms: built-in self-test (BIST) for CPU and on-chip RAM, Error Signaling Module (ESM) with dedicated error pin, windowed watchdog timers, ECC on critical memories and interconnects, and Freedom From Interference (FFI) isolation of the MCU domain (Cortex-M4F + 256KB SRAM). These features collectively enable SIL 2 hardware integrity and SIL 3 systematic capability.
What package type and pin count does AM2431BSDGHIALXR use?
AM2431BSDGHIALXR uses the ALV package: a 441-ball Flip-Chip Ball Grid Array (FCBGA) with 17.2mm × 17.2mm footprint and 0.8mm ball pitch. It is a lidded package designed for industrial thermal reliability. Pin functions are fully documented in TI's SPRSP65J datasheet Section 5.1.1 (ALV/ANI pin diagram) and Table 5-2 (ball signal descriptions).
Can AM2431BSDGHIALXR boot from external flash, and which interfaces are supported?
Yes, AM2431BSDGHIALXR supports boot from multiple external interfaces: OSPI or QSPI flash (configured via FSS), SPI flash, parallel NOR/NAND flash (via GPMC), MMCSD/eMMC, UART, I2C, USB, PCIe, and Ethernet. Boot mode is selected via strap pins (e.g., BOOT_MODE[2:0]) at power-on reset. OSPI is the primary high-speed boot source, supporting XIP and ECC-protected code execution directly from flash.
AM2431BSDGHIALXR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 293-VFBGA, FCCSPBGA
- Series:
- Sitara™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F, ARM® Cortex®-R5F
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 400MHz, 800MHz
- Connectivity:
- CANbus, Ethernet, I2C, MMC/SDIO, QSPI, SPI, UART/USART, USB
- Peripherals:
- AES, DMA, POR, PWM, SHA, WDT
- Number of I/O:
- 148
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- Tightly Coupled Memory (TCM)
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 1.89V, 3.135V ~ 3.465V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
AM2431BSDGHIALXR FAQ
1.How can I place an order for AM2431BSDGHIALXR through Aetrix?
Please submit a Request for Quotation (RFQ) for AM2431BSDGHIALXR 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 AM2431BSDGHIALXR reliable?
The price and inventory of AM2431BSDGHIALXR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM2431BSDGHIALXR is usually 5 days.
3.What payment methods are accepted for AM2431BSDGHIALXR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM2431BSDGHIALXR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM2431BSDGHIALXR?
AM2431BSDGHIALXR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM2431BSDGHIALXR 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 AM2431BSDGHIALXR?
For technical support, including AM2431BSDGHIALXR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM2431BSDGHIALXR requirements.
6.How does Aetrix verify that AM2431BSDGHIALXR is sourced from the original manufacturer or authorized distributors?
All AM2431BSDGHIALXR 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 AM2431BSDGHIALXR meets industry standards.
7.What is the process for return or replacement of AM2431BSDGHIALXR?
All AM2431BSDGHIALXR units undergo pre-shipment inspection (PSI). If there is an issue with AM2431BSDGHIALXR, 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 AM2431BSDGHIALXR part is unused and in its original packaging.
Return procedure for AM2431BSDGHIALXR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AM2431BSDGHIALXR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
