Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microprocessors

Texas Instruments AM6421BSEFHAALVR

Name: AM6421BSEFHAALVR
Brand: Texas Instruments
SKU: AM6421BSEFHAALVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AM6421BSEFHAALVR

Manufacturer:: Texas Instruments

Category:: Microprocessors

Package:: 441-BFBGA, FCBGA

Datasheet:: AM6421BSEFHAALVR.pdf

Description:: SINGLE-CORE 64-BIT ARM CORTEX-A5

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,782

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AM6421BSEFHAALVR from Texas Instruments is a heterogeneous Sitara™ industrial processor integrating one dual-core Arm® Cortex®-A53 subsystem (up to 1.0GHz), one dual-core Arm® Cortex®-R5F real-time subsystem (up to 800MHz), and one single-core Arm® Cortex®-M4F MCU (up to 400MHz), all with SECDED ECC on L1/L2/SRAM/TCM. It features two PRU_ICSSG subsystems supporting Profinet IRT, EtherCAT, TSN, and industrial Ethernet, plus DDR4/LPDDR4 support (16-bit, 1600MT/s) and functional safety compliance up to SIL 2. It targets programmable logic controllers and motor drives requiring deterministic real-time control alongside Linux application processing.

For engineers reviewing the AM6421BSEFHAALVR datasheet, AM6421BSEFHAALVR pinout, AM6421BSEFHAALVR application, or AM6421BSEFHAALVR equivalent, this page delivers verified core counts, clock speeds, memory ECC coverage, industrial protocol support (Profinet IRT, EtherCAT), and functional safety certification (IEC 61508, SIL 2) - critical for PLC, servo drive, and condition-monitoring gateway design validation.

Technical Context

The AM6421BSEFHAALVR implements a deterministic SoC architecture with dedicated low-latency paths between R5F cores and peripherals including sigma-delta filters, encoder interfaces, EPWM, and ECAP modules - enabling sub-microsecond control loop execution. Its dual PRU_ICSSG subsystems each deliver two RGMII/MII Ethernet ports, six PRU RISC cores, three ECC-protected Data RAMs, and integrated IEPs for IEEE 1588 timestamping.

Security is enforced via DMSC-L managing secure boot with hardware RoT, TrustZone-based TEE, cryptographic acceleration (AES-128/192/256, SHA2-224/256/384/512, PKA), and runtime diagnostics including BIST, ESM error signaling, and voltage/temperature monitoring - all validated for functional safety up to SIL 2 per TÜV SÜD certification.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Cores	Dual-core Arm Cortex-A53 @ 1.0GHz + dual-core Arm Cortex-R5F @ 800MHz + single-core Arm Cortex-M4F @ 400MHz
Memory Protection	SECDED ECC on A53 L1/L2 cache, R5F TCM (256KB total), M4F SRAM (256KB), and 2MB OCSRAM; inline ECC on DDR4/LPDDR4
Industrial Connectivity	2× PRU_ICSSG with 4× RGMII/MII Ethernet ports, 18× sigma-delta filters, 6× encoder interfaces, and support for Profinet IRT, EtherCAT, TSN
High-Speed Interfaces	PCIe Gen2 (single lane), USB 3.1 DRD (SuperSpeed capable), CPSW3G 3-port gigabit Ethernet switch with IEEE 1588 PTP
Functional Safety	IEC 61508 certified (TÜV SÜD), systematic capability SIL 3, hardware integrity SIL 2, with BIST, ESM, firewalls, and FFI isolation for M4F domain
Package	FCBGA-441 (ALV), 17.2mm × 17.2mm, 0.8mm pitch
Process Technology	16nm FinFET

Pinout & Package

AM6421BSEFHAALVR uses a 441-ball flip-chip ball grid array (FCBGA) package in ALV variant, measuring 17.2mm × 17.2mm with 0.8mm pitch. Pin functions are multiplexed across 198 GPIOs and dedicated interface balls including DDR0, OSPI0, GPMC0, PRU_ICSSG, and SerDes PHY signals.

Pin/Terminal	Circuit Role	Design Meaning
DDR0_DQ0–DDR0_DQ15	DDR4/LPDDR4 data bus	16-bit bidirectional data interface with inline ECC; supports 1600MT/s operation
OSPI0_D0–OSPI0_D7	Octal SPI flash interface	Configurable as OSPI or QSPI; enables fast boot and code execution from external flash
GPMC0_AD0–GPMC0_AD15	General-purpose memory controller address/data bus	16-bit parallel interface supporting NOR/NAND flash, SRAM, and FPGA connectivity at 133MHz
PRG0_PRU0_GPO0–PRG0_PRU1_GPO19	PRU general-purpose output	Direct PRU-controlled outputs for real-time GPIO, PWM, or encoder signal generation without CPU intervention
SERDES0_TX0_P/N, RX0_P/N	PCIe/USB SerDes PHY lanes	Shared high-speed transceiver supporting PCIe Gen2 or USB 3.1 SuperSpeed (mutually exclusive)

Key Features

Feature	Design Value
Deterministic Real-Time Processing	Dual R5F subsystems with 256KB TCM (ECC), dedicated low-latency interconnect, and PRU_ICSSG offload enable <1µs jitter for servo control loops
Industrial Protocol Acceleration	Two PRU_ICSSG units provide hardware-accelerated Profinet IRT, EtherCAT slave, TSN time synchronization, and Sigma-Delta decimation without host CPU load
Functional Safety Isolation	M4F core, safety-critical peripherals, and dedicated interconnect can be fully isolated from A53/R5F domains using firewalls, separate PLL, and FFI architecture
Secure Boot & Runtime Integrity	Hardware-enforced Root-of-Trust with backup key switching, TrustZone TEE, PKA-assisted RSA/ECC, and runtime CRC checks on memory and firmware
Flexible Memory Partitioning	2MB OCSRAM divisible into eight 256KB banks; assignable to individual cores to enforce software task isolation and prevent cross-domain interference

Applications

Programmable Logic Controller (PLC)	Motor Drive Control
Use Scenario: Central controller in modular PLC rack handling I/O expansion, motion sequencing, and HMI communication. IC Role / Device Role / Timing Role: AM6421BSEFHAALVR serves as main SoC executing real-time IEC 61131-3 logic on R5F cores while running Linux-based engineering tools on A53 cores. Use Value: Dual PRU_ICSSG enables simultaneous Profinet IRT master and EtherCAT slave operation with <100ns timestamp precision, meeting cycle time requirements for distributed I/O.	Use Scenario: Integrated servo drive controller managing field-oriented control (FOC), current sensing, and position feedback. IC Role / Device Role / Timing Role: AM6421BSEFHAALVR executes FOC algorithms on R5F cores with direct access to sigma-delta ADC inputs and EPWM outputs. Use Value: 18× sigma-delta filters and 9× EPWM modules allow concurrent sampling of 18 current/voltage channels and generation of precise 3-phase PWM waveforms with <50ns dead-time control.
Remote I/O Gateway	Condition-Monitoring Gateway
Use Scenario: Edge node aggregating sensor data from multiple fieldbus networks (PROFIBUS, CANopen) and forwarding to cloud via Ethernet/Wi-Fi. IC Role / Device Role / Timing Role: AM6421BSEFHAALVR acts as protocol translator with R5F handling real-time fieldbus stacks and A53 managing MQTT/OPC UA over TCP/IP. Use Value: Integrated MCAN modules (with optional CAN-FD) and PRU_ICSSG support legacy fieldbus bridging while CPSW3G provides redundant 1000BASE-T uplinks.	Use Scenario: Vibration and thermal analysis unit deployed on rotating machinery, performing FFT-based anomaly detection locally before streaming alerts. IC Role / Device Role / Timing Role: AM6421BSEFHAALVR runs real-time vibration analysis on R5F cores using ADC-sampled data and stores results in ECC-protected OCSRAM. Use Value: On-chip 12-bit ADC (4MSPS) with 8-channel mux and 2MB ECC RAM enable continuous high-fidelity waveform capture and edge inference without external memory latency.

Programmable Logic Controller (PLC)

Motor Drive Control

Use Scenario: Central controller in modular PLC rack handling I/O expansion, motion sequencing, and HMI communication.

IC Role / Device Role / Timing Role: AM6421BSEFHAALVR serves as main SoC executing real-time IEC 61131-3 logic on R5F cores while running Linux-based engineering tools on A53 cores.

Use Value: Dual PRU_ICSSG enables simultaneous Profinet IRT master and EtherCAT slave operation with <100ns timestamp precision, meeting cycle time requirements for distributed I/O.

Use Scenario: Integrated servo drive controller managing field-oriented control (FOC), current sensing, and position feedback.

IC Role / Device Role / Timing Role: AM6421BSEFHAALVR executes FOC algorithms on R5F cores with direct access to sigma-delta ADC inputs and EPWM outputs.

Use Value: 18× sigma-delta filters and 9× EPWM modules allow concurrent sampling of 18 current/voltage channels and generation of precise 3-phase PWM waveforms with <50ns dead-time control.

Remote I/O Gateway

Condition-Monitoring Gateway

Use Scenario: Edge node aggregating sensor data from multiple fieldbus networks (PROFIBUS, CANopen) and forwarding to cloud via Ethernet/Wi-Fi.

IC Role / Device Role / Timing Role: AM6421BSEFHAALVR acts as protocol translator with R5F handling real-time fieldbus stacks and A53 managing MQTT/OPC UA over TCP/IP.

Use Value: Integrated MCAN modules (with optional CAN-FD) and PRU_ICSSG support legacy fieldbus bridging while CPSW3G provides redundant 1000BASE-T uplinks.

Use Scenario: Vibration and thermal analysis unit deployed on rotating machinery, performing FFT-based anomaly detection locally before streaming alerts.

IC Role / Device Role / Timing Role: AM6421BSEFHAALVR runs real-time vibration analysis on R5F cores using ADC-sampled data and stores results in ECC-protected OCSRAM.

Use Value: On-chip 12-bit ADC (4MSPS) with 8-channel mux and 2MB ECC RAM enable continuous high-fidelity waveform capture and edge inference without external memory latency.

Equivalent & Alternatives

The following parts are listed as comparable options for similar heterogeneous industrial processor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AM6422BSEFHAALVR	Dual-core Cortex-A53 + dual-core Cortex-R5F (same as AM6421), but includes full CAN-FD support on both MCAN modules	Required where ISO 11898-1:2015 CAN-FD communication is mandatory for automotive-grade diagnostics or high-bandwidth actuator control	Select AM6422BSEFHAALVR if CAN-FD is needed; AM6421BSEFHAALVR omits CAN-FD functionality per device nomenclature
AM6412BSEFHAALVR	Single-core Cortex-A53 + single-core Cortex-R5F + Cortex-M4F; reduced OCSRAM (1MB vs 2MB) and no PRU_ICSSG industrial communication support	Suitable for cost-sensitive remote I/O or simple motion controllers without TSN, Profinet IRT, or EtherCAT requirements	Choose AM6412BSEFHAALVR only when real-time protocol acceleration and dual R5F redundancy are unnecessary

Compared with AM6422BSEFHAALVR and AM6412BSEFHAALVR, the AM6421BSEFHAALVR uniquely balances dual-A53 application processing, dual-R5F real-time determinism, and full PRU_ICSSG industrial protocol support - making it optimal for mid-tier PLCs and servo drives needing Profinet IRT and EtherCAT without CAN-FD.

Availability

AM6421BSEFHAALVR is available at Aetrix Electronics and suitable for programmable logic controllers, motor drives, and remote I/O gateways requiring stable component supply, long-term industrial lifecycle support, and functional safety certification.

Supply support for AM6421BSEFHAALVR 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 solutions for industrial, automotive, and communications markets.

The AM64x Sitara™ processor family is designed specifically for industrial automation systems requiring coexistence of Linux-based application processing and hard real-time control - targeting PLCs, robotics, and intelligent motor drives with functional safety and multi-protocol industrial Ethernet.

FAQ

What is the maximum operating frequency of each processor core in the AM6421BSEFHAALVR?

The AM6421BSEFHAALVR features a dual-core Arm Cortex-A53 subsystem rated up to 1.0GHz, a dual-core Arm Cortex-R5F subsystem rated up to 800MHz, and a single-core Arm Cortex-M4F MCU rated up to 400MHz. These frequencies are specified under recommended operating conditions and supported by TI's Processor SDK Linux and RT Linux distributions. All cores implement SECDED ECC on their respective caches and tightly coupled memories to ensure reliability at these speeds.

Does the AM6421BSEFHAALVR support Profinet IRT and EtherCAT simultaneously?

Yes, the AM6421BSEFHAALVR supports simultaneous Profinet IRT and EtherCAT operation through its two independent PRU_ICSSG subsystems. Each PRU_ICSSG contains dedicated Ethernet MACs, IEP timestamping units, and PRU RISC cores capable of running protocol stacks in parallel. This allows one PRU_ICSSG to serve as a Profinet IRT device while the other operates as an EtherCAT slave - confirmed in TI's AM64x Industrial Communications User Guide and supported by TI's industrial protocol SDKs.

What functional safety certifications apply to the AM6421BSEFHAALVR?

The AM6421BSEFHAALVR is IEC 61508 certified by TÜV SÜD for functional safety applications, achieving systematic capability up to SIL 3 and hardware integrity up to SIL 2. Key enablers include ECC/parity on critical memories and buses, Built-In Self-Test (BIST) for CPU and on-chip RAM, Error Signaling Module (ESM), and Freedom From Interference (FFI) isolation of the M4F domain. Documentation for system-level safety design is provided in TI's AM64x Functional Safety Package.

How is memory partitioned between cores in the AM6421BSEFHAALVR?

The AM6421BSEFHAALVR provides 2MB of on-chip SRAM (OCSRAM) with SECDED ECC, divisible into eight 256KB banks. Each bank can be independently allocated to the A53, R5F, or M4F domains via configuration registers - enabling strict software task partitioning. For example, 512KB can be assigned to R5F TCM emulation, 768KB to A53 Linux kernel space, and 256KB reserved for M4F safety monitor tasks, all with hardware-enforced isolation.

What package type and pin count does the AM6421BSEFHAALVR use?

The AM6421BSEFHAALVR uses a 441-ball flip-chip ball grid array (FCBGA) package in the ALV variant, measuring 17.2mm × 17.2mm with 0.8mm pitch. This package is identical across the AM64x family (AM6442/AM6422/AM6421/etc.) and supports all high-speed interfaces including DDR4, OSPI, GPMC, PCIe, USB 3.1, and dual PRU_ICSSG Ethernet. Ball mapping is documented in the AM64x Technical Reference Manual Section 5.

AM6421BSEFHAALVR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 441-BFBGA, FCBGA

Series:: Sitara™

Packaging:: Tape & Reel (TR)

Product Status:: Active

Core Processor:: ARM® Cortex®-A53

Number of Cores/Bus Width:: 1 Core, 64-Bit

Speed:: 1GHz

Co-Processors/DSP:: ARM® Cortex®-M4F, ARM® Cortex®-R5F, Multimedia; NEON™ SIMD, PRU-ICSS

RAM Controllers:: DDR4, LPDDR4

Graphics Acceleration:: No

Display & Interface Controllers:: -

Ethernet:: 10/100 Mbps (2), 10/100/1000 Mbps (2)

SATA:: -

USB:: USB 3.1 (1)

Voltage - I/O:: 1.1V, 1.2V, 1.8V, 3.3V

Operating Temperature:: -40°C ~ 105°C (TJ)

Grade:: -

Qualification:: -

Security Features:: 3DES, AES, ARM TZ, Cryptography, DRBG, ECC, MD5, PKA, Random Number Generator, RSA, Secure Boot, SHA-1/2

Mounting Type:: Surface Mount

Supplier Device Package:: 441-FCBGA (17.2x17.2)

Additional Interfaces:: CANbus, DMA, GPIO, I2C, MMC/SD, PCIe, QSPI, SPI, UART/USART

AM6421BSEFHAALVR FAQ

1.How can I place an order for AM6421BSEFHAALVR through Aetrix?

Please submit a Request for Quotation (RFQ) for AM6421BSEFHAALVR 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 AM6421BSEFHAALVR reliable?

The price and inventory of AM6421BSEFHAALVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM6421BSEFHAALVR is usually 5 days.

3.What payment methods are accepted for AM6421BSEFHAALVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM6421BSEFHAALVR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AM6421BSEFHAALVR?

AM6421BSEFHAALVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AM6421BSEFHAALVR 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 AM6421BSEFHAALVR?

For technical support, including AM6421BSEFHAALVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM6421BSEFHAALVR requirements.

6.How does Aetrix verify that AM6421BSEFHAALVR is sourced from the original manufacturer or authorized distributors?

All AM6421BSEFHAALVR 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 AM6421BSEFHAALVR meets industry standards.

7.What is the process for return or replacement of AM6421BSEFHAALVR?

All AM6421BSEFHAALVR units undergo pre-shipment inspection (PSI). If there is an issue with AM6421BSEFHAALVR, 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 AM6421BSEFHAALVR part is unused and in its original packaging.

Return procedure for AM6421BSEFHAALVR:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…