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Texas Instruments AM6421BSDGHAALVR

Name: AM6421BSDGHAALVR
Brand: Texas Instruments
SKU: AM6421BSDGHAALVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AM6421BSDGHAALVR

Manufacturer:: Texas Instruments

Category:: Microprocessors

Package:: 441-BFBGA, FCBGA

Datasheet:: AM6421BSDGHAALVR.pdf

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

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Product details

Overview

AM6421BSDGHAALVR from Texas Instruments is a heterogeneous Sitara™ Arm® processor featuring one dual-core Cortex-A53 subsystem (up to 1.0GHz), one dual-core Cortex-R5F real-time subsystem (up to 800MHz), and one Cortex-M4F MCU (up to 400MHz), all integrated with dual PRU_ICSSG industrial Ethernet subsystems, 2MB on-chip SRAM with SECDED ECC, and DDR4/LPDDR4 support. It delivers deterministic real-time control and Linux-capable application processing for programmable logic controllers and motor drives.

For engineers reviewing the AM6421BSDGHAALVR datasheet, AM6421BSDGHAALVR pinout, AM6421BSDGHAALVR application, or AM6421BSDGHAALVR equivalent, key selection considerations include its ALV 441-ball FCBGA package, dual gigabit TSN-enabled PRU-ICSSG, functional safety readiness (SIL 2 hardware integrity), industrial protocol acceleration (EtherCAT, PROFINET IRT), and secure boot with cryptographic acceleration (AES-256, SHA-512, PKA).

Technical Context

The AM6421BSDGHAALVR implements a deterministic SoC architecture with isolated memory domains: 2MB OCSRAM partitioned into eight 256KB banks for core-specific allocation, dedicated TCM per R5F core (64KB each), and 256KB M4F SRAM - all protected by SECDED ECC. Its dual PRU_ICSSG subsystems integrate 12 PRU RISC cores, six Data RAMs with ECC, and two 64-bit Industrial Ethernet Peripherals (IEPs) for IEEE 1588 timestamping and TSN synchronization.

Security is enforced via DMSC-L, enabling hardware-rooted secure boot, Arm TrustZone®-based TEE, firewall-isolated peripherals, and session-aware cryptographic acceleration supporting AES-128/192/256, SHA2-224/256/384/512, DRBG, and PKA for RSA/ECC. Functional safety compliance includes BIST, ESM error signaling, windowed watchdogs, and dedicated M4F domain isolation with Freedom From Interference (FFI) features.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Cores	Dual-core Arm Cortex-A53 @ up to 1.0GHz, dual-core Arm Cortex-R5F @ up to 800MHz, single-core Arm Cortex-M4F @ up to 400MHz - enables concurrent Linux application execution and hard real-time control.
On-Chip Memory	2MB OCSRAM with SECDED ECC, divisible into eight 256KB banks - supports software task partitioning and core-specific memory isolation.
Industrial Connectivity	Dual PRU_ICSSG subsystems, each with 2× RGMII/MII Ethernet ports, 6× PRU cores, 18× sigma-delta filters, 6× encoder interfaces - enables EtherCAT SubDevice, PROFINET device, and IO-Link Master implementations.
Security Features	Hardware-enforced secure boot, TrustZone-based TEE, AES-256/SHA-512 acceleration, PKA, RPMB, and secure proxy - provides root-of-trust, encrypted storage, and runtime attestation.
Functional Safety	IEC 61508 certified (TÜV SÜD), SIL 2 hardware integrity, SIL 3 systematic capability, BIST, ESM, voltage/temp monitoring, and FFI-capable M4F domain - meets requirements for PLC and drive safety subsystems.
Package	ALV: 441-ball FCBGA, 17.2mm × 17.2mm, 0.8mm pitch - compatible with industrial PCB assembly and thermal management for extended temperature operation.
High-Speed Interfaces	PCIe Gen2 (single lane), USB 3.1 DRD (SuperSpeed capable), CPSW3G 3-port Gigabit Ethernet switch with IEEE 1588 Annex D/E/F - supports time-critical networking and host/device connectivity.

Pinout & Package

AM6421BSDGHAALVR uses the ALV package: 441-ball flip-chip ball grid array (FCBGA), 17.2mm × 17.2mm body size, 0.8mm ball pitch, RoHS-compliant, designed for industrial thermal and mechanical reliability.

Pin/Terminal	Circuit Role	Design Meaning
DDR0_DQ0–DDR0_DQ15	DDR4/LPDDR4 data bus	16-bit bidirectional data interface with inline ECC - supports up to 1600MT/s DDR operation with error correction.
DDR0_CK0_n / DDR0_CK0	DDR clock pair	Differential clock input for DDR subsystem - critical for timing closure in high-speed memory interface design.
PRG0_PRU0_GPO0–PRG0_PRU1_GPO19	PRU general-purpose output	Configurable real-time GPIOs mapped to PRU-ICSSG - used for PWM generation, encoder feedback, or protocol-specific signal timing.
MCAN0_TX / MCAN0_RX	Modular CAN-FD transceiver interface	Differential CAN physical layer interface - supports CAN FD up to 5Mbps with flexible bit-rate switching (feature code-dependent).
USB0_DP / USB0_DM	USB 3.1 SuperSpeed differential pair	Shared SerDes PHY with PCIe - enables USB host/device/DRD operation at 5Gbps when PCIe is inactive.
VDD_CORE / VDDS_DDR / VDDA_ADC	Power supply domains	Separate regulated supplies for core logic, DDR I/O, and analog ADC - required for noise isolation and compliance with recommended operating conditions.

Key Features

Feature	Design Value
Dual PRU_ICSSG with TSN	Enables simultaneous EtherCAT SubDevice and PROFINET IRT operation with sub-microsecond jitter via hardware timestamping and IEPs.
Configurable OCSRAM partitioning	Eight independent 256KB SRAM banks assignable to A53, R5F, or M4F - eliminates inter-core memory contention in safety-critical tasks.
Functional safety domain isolation	M4F core + dedicated peripherals can be firewalled from main SoC - satisfies Freedom From Interference (FFI) for SIL 2 systems.
Session-aware crypto engine	Automatically switches key material based on incoming packet stream - enables secure multi-tenant communication without software overhead.
Industrial analog integration	12-bit 4MSPS ADC with 8-channel mux, 18× sigma-delta filters, and 6× EnDat/BiSS encoder interfaces - reduces external component count in motor control designs.

Applications

Programmable Logic Controller (PLC)	Industrial Motor Drive
Use Scenario: Central controller in modular PLC rack handling I/O expansion, motion sequencing, and fieldbus communication. IC Role / Device Role / Timing Role: Heterogeneous processor executing Linux-based HMI and real-time R5F firmware for cyclic I/O scanning and safety logic. Use Value: Dual PRU_ICSSG enables native PROFINET IRT and EtherNet/IP adapter stacks with <1µs cycle jitter, while OCSRAM partitioning guarantees deterministic response for safety shutdown paths.	Use Scenario: Integrated servo drive controller managing FOC, position loop, and fieldbus synchronization in compact inverters. IC Role / Device Role / Timing Role: Real-time subsystem (R5F + PRU) executes 10kHz current loops; A53 runs Linux-based diagnostics and web server. Use Value: Sigma-delta decimation filters and EnDat 2.2 interfaces eliminate external ADCs and encoder ASICs; TSN support enables synchronized multi-axis motion over standard Ethernet.
Remote I/O Gateway	Condition-Monitoring Edge Node
Use Scenario: DIN-rail mounted gateway aggregating analog/digital sensor data from legacy field devices and forwarding via OPC UA over TSN. IC Role / Device Role / Timing Role: A53 handles protocol translation and cloud connectivity; R5F manages time-synchronized sampling of 18× sigma-delta inputs. Use Value: On-chip 12-bit ADC and sigma-delta filters support direct connection of strain gauges and RTDs; PRU_ICSSG provides IEEE 1588 PTP grandmaster capability for network-wide time alignment.	Use Scenario: Vibration and thermal monitoring node deployed on rotating machinery, performing edge FFT analysis and anomaly detection before cloud upload. IC Role / Device Role / Timing Role: M4F core executes low-power FFT and threshold detection; A53 runs Yocto Linux with MQTT client and secure OTA update stack. Use Value: 256KB M4F SRAM with ECC enables reliable real-time signal processing; secure boot and RPMB ensure firmware integrity against tampering in unattended deployments.

Programmable Logic Controller (PLC)

Industrial Motor Drive

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

IC Role / Device Role / Timing Role: Heterogeneous processor executing Linux-based HMI and real-time R5F firmware for cyclic I/O scanning and safety logic.

Use Value: Dual PRU_ICSSG enables native PROFINET IRT and EtherNet/IP adapter stacks with <1µs cycle jitter, while OCSRAM partitioning guarantees deterministic response for safety shutdown paths.

Use Scenario: Integrated servo drive controller managing FOC, position loop, and fieldbus synchronization in compact inverters.

IC Role / Device Role / Timing Role: Real-time subsystem (R5F + PRU) executes 10kHz current loops; A53 runs Linux-based diagnostics and web server.

Use Value: Sigma-delta decimation filters and EnDat 2.2 interfaces eliminate external ADCs and encoder ASICs; TSN support enables synchronized multi-axis motion over standard Ethernet.

Remote I/O Gateway

Condition-Monitoring Edge Node

Use Scenario: DIN-rail mounted gateway aggregating analog/digital sensor data from legacy field devices and forwarding via OPC UA over TSN.

IC Role / Device Role / Timing Role: A53 handles protocol translation and cloud connectivity; R5F manages time-synchronized sampling of 18× sigma-delta inputs.

Use Value: On-chip 12-bit ADC and sigma-delta filters support direct connection of strain gauges and RTDs; PRU_ICSSG provides IEEE 1588 PTP grandmaster capability for network-wide time alignment.

Use Scenario: Vibration and thermal monitoring node deployed on rotating machinery, performing edge FFT analysis and anomaly detection before cloud upload.

IC Role / Device Role / Timing Role: M4F core executes low-power FFT and threshold detection; A53 runs Yocto Linux with MQTT client and secure OTA update stack.

Use Value: 256KB M4F SRAM with ECC enables reliable real-time signal processing; secure boot and RPMB ensure firmware integrity against tampering in unattended deployments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AM6422BSDGHAALVR	Dual Cortex-A53 + dual Cortex-R5F + Cortex-M4F; includes full CAN-FD support (feature code E/F); same ALV package.	Required where CAN FD at 5Mbps is mandatory for drive-to-drive communication or safety-critical messaging.	Select AM6422 if CAN FD physical layer and protocol stack support are essential; AM6421 omits this feature per nomenclature.
AM6412BSDGHAALVR	Single Cortex-A53 core, single Cortex-R5F core, no PRU_ICSSG industrial communication support (feature code C only); same ALV package.	Suitable for cost-sensitive remote I/O or simple gateway applications without TSN or EtherCAT/PROFINET.	Choose AM6412 only when real-time Ethernet offload and dual R5F determinism are unnecessary - reduces BOM and software complexity.

Compared with AM6422BSDGHAALVR, AM6421BSDGHAALVR lacks full CAN-FD support but retains identical PRU_ICSSG, TSN, and safety capabilities; versus AM6412BSDGHAALVR, it adds a second A53 core and full industrial Ethernet acceleration - making it optimal for Linux+real-time coexistence in PLCs and drives.

Availability

AM6421BSDGHAALVR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial motor drives, and remote I/O gateways requiring stable component supply across long-life industrial product cycles.

Supply support for AM6421BSDGHAALVR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.

The AM64x Sitara™ processor family is engineered for industrial automation applications demanding real-time determinism, functional safety, and multi-protocol industrial Ethernet - bridging Linux application processing with hard real-time control in a single SoC.

FAQ

What is the maximum operating frequency of each processor core in the AM6421BSDGHAALVR?

The AM6421BSDGHAALVR integrates three processor subsystems with distinct frequency ratings: the dual-core Arm Cortex-A53 operates up to 1.0GHz; the dual-core Arm Cortex-R5F runs up to 800MHz; and the single-core Arm Cortex-M4F reaches up to 400MHz. These frequencies are specified under recommended operating conditions and are validated across the industrial temperature range. All cores maintain their rated performance with full ECC/parity protection enabled on associated caches and memories.

Does the AM6421BSDGHAALVR support IEEE 1588 Precision Time Protocol (PTP) for time synchronization?

Yes, the AM6421BSDGHAALVR supports IEEE 1588-2008 Annex D, E, and F through its integrated CPSW3G Gigabit Ethernet switch and dual PRU_ICSSG subsystems. Each PRU_ICSSG contains two 64-bit Industrial Ethernet Peripherals (IEPs) that provide hardware timestamping with nanosecond resolution, enabling transparent clock and boundary clock operation in TSN networks. The AM6421BSDGHAALVR also supports 802.1AS for audio-video bridging synchronization.

What industrial Ethernet protocols are natively accelerated by the PRU_ICSSG in the AM6421BSDGHAALVR?

The AM6421BSDGHAALVR's dual PRU_ICSSG subsystems natively accelerate Profinet IRT and RT, EtherNet/IP, EtherCAT (as SubDevice), Time-Sensitive Networking (TSN), and IO-Link Master. These capabilities are implemented in PRU firmware and supported by TI's Processor SDK. Protocol stacks are provided for Linux (A53) and real-time (R5F) execution environments, with hardware offload for frame processing, CRC calculation, and timestamp insertion.

Is functional safety certification available for the AM6421BSDGHAALVR, and what level does it achieve?

Yes, the AM6421BSDGHAALVR is IEC 61508 certified by TÜV SÜD with systematic capability up to SIL 3 and hardware integrity up to SIL 2. Certification covers built-in self-test (BIST), error signaling module (ESM), ECC/parity on critical memories and buses, runtime diagnostics (voltage, temperature, clock), and dedicated M4F domain isolation with Freedom From Interference (FFI) features - all documented in TI's functional safety package for AM64x.

What memory types and configurations does the AM6421BSDGHAALVR support for external storage?

The AM6421BSDGHAALVR supports LPDDR4 and DDR4 memory via its 16-bit DDR subsystem (DDRSS) with inline ECC, operating up to 1600MT/s. It also includes a General-Purpose Memory Controller (GPMC) supporting 16-bit/133MHz or 32-bit/100MHz parallel interfaces with Error Location Module (ELM) for NAND/NOR flash. The Flash Subsystem (FSS) can be configured as Octal SPI (OSPI) or Quad SPI (QSPI) for NOR/NAND flash, and two MMC/SD interfaces support eMMC (8-bit) and SD/SDIO (4-bit) cards.

AM6421BSDGHAALVR 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

AM6421BSDGHAALVR FAQ

1.How can I place an order for AM6421BSDGHAALVR through Aetrix?

Please submit a Request for Quotation (RFQ) for AM6421BSDGHAALVR 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 AM6421BSDGHAALVR reliable?

The price and inventory of AM6421BSDGHAALVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM6421BSDGHAALVR is usually 5 days.

3.What payment methods are accepted for AM6421BSDGHAALVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM6421BSDGHAALVR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AM6421BSDGHAALVR?

AM6421BSDGHAALVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AM6421BSDGHAALVR 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 AM6421BSDGHAALVR?

For technical support, including AM6421BSDGHAALVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM6421BSDGHAALVR requirements.

6.How does Aetrix verify that AM6421BSDGHAALVR is sourced from the original manufacturer or authorized distributors?

All AM6421BSDGHAALVR 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 AM6421BSDGHAALVR meets industry standards.

7.What is the process for return or replacement of AM6421BSDGHAALVR?

All AM6421BSDGHAALVR units undergo pre-shipment inspection (PSI). If there is an issue with AM6421BSDGHAALVR, 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 AM6421BSDGHAALVR part is unused and in its original packaging.

Return procedure for AM6421BSDGHAALVR:

1.Submit a request within 90 days.

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

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