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Texas Instruments AM6526BACDXA
- Part No.:
- AM6526BACDXA
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 784-LFBGA, FCBGA
- Datasheet:
-
AM6526BACDXA.pdf
- Description:
- IC MPU SITARA 1.1GZ/400MZ 784BGA
- Quantity:
- Payment:
- Shipping:
Inventory:172
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Product details
Overview
AM6526BACDXA from Texas Instruments is a dual-core Arm® Cortex®-A53 industrial applications processor with integrated dual-core Arm® Cortex®-R5F MCU subsystem, 3× PRU_ICSSG industrial communication subsystems, DDR4 memory controller (up to DDR-1600), and functional safety features targeting SIL 2 hardware integrity. It delivers deterministic real-time control for PLCs, robotic motor drives, and safety-critical HMI systems.
For engineers reviewing the AM6526BACDXA datasheet, AM6526BACDXA pinout, AM6526BACDXA application, or AM6526BACDXA equivalent, this page provides verified core architecture, validated I/O voltage domains, confirmed functional safety certification status (IEC 61508 by TÜV SÜD), and precise package-level pin mapping for ACD FCBGA-784.
Technical Context
The AM6526BACDXA implements a heterogeneous processing architecture: two Cortex-A53 cores in a single cluster with 512KB shared L2 cache (SECDED), plus two Cortex-R5F cores supporting lockstep mode for functional safety. Its three PRU_ICSSG subsystems each support up to two 10/100/1000 Ethernet ports and 24× PWMs, enabling multi-protocol industrial fieldbus offload.
Memory subsystem includes 2MB on-chip L3 RAM (SECDED), 2MB MSMC SRAM (SECDED), and DDR4-1600 interface with 32-bit data bus and 7-bit SECDED ECC. Functional safety is enforced via ECC/parity on critical memories, firewalls for Freedom From Interference, BIST for CPU and RAM, and dedicated ESM error signaling modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core Arm Cortex-A53 @ up to 1.1 GHz + dual-core Arm Cortex-R5F @ up to 400 MHz (lockstep-capable) |
| Industrial Connectivity | 3× PRU_ICSSG subsystems, each supporting up to 2× RGMII/MII and 2× SGMII ports for Profinet IRT, EtherCAT, or TSN |
| Memory Interface | DDR4-1600 (32-bit bus, 7-bit SECDED), 2MB on-chip L3 RAM (SECDED), 2MB MSMC SRAM (SECDED) |
| Functional Safety | IEC 61508 certified by TÜV SÜD; hardware integrity up to SIL 2; systematic capability up to SIL 3 |
| Security Acceleration | Hardware AES-128/192/256, SHA2-224/256/384/512, PKA, DRBG with TRNG, and secure boot with root-of-trust |
| Package | ACD: 784-ball FCBGA, 23.0 mm × 23.0 mm, 0.8-mm pitch |
| Process Technology | 28-nm CMOS |
Pinout & Package
AM6526BACDXA uses the ACD package: 784-ball Fine-Pitch Chip Scale Ball Grid Array (FCBGA) with 23.0 mm × 23.0 mm footprint and 0.8-mm ball pitch. Power delivery includes dedicated VDDAR_CORE, VDDAR_MPU, VDDSHV_SDIO, and VDDS_DDR rails; I/O banks support 1.1 V / 1.2 V / 1.35 V DDR, 1.8 V CSI/IO, and 3.3 V general-purpose logic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DDR_AC0–DDR_AC27 | DDR Address/Command | 28-bit address/command bus for DDR4 subsystem; requires matched trace length and termination per JEDEC DDR4 spec |
| DDR_CK0P/N, DDR_CK1P/N | DDR Clock Differential Pairs | Two independent DDR clock pairs for dual-rank operation; routed as controlled-impedance differential pairs |
| DDR_DQ0–DDR_DQ63 | DDR Data Bus | 64-bit data bus with per-byte DQS strobes; supports 8-bit ECC (7-bit SECDED + 1-bit parity) |
| CSI0_RXP0–RXN4, CSI0_RXP0–RXP4 | MIPI CSI-2 Differential Pairs | 5-lane MIPI CSI-2 receiver (4 data + 1 clock); operates at 1.8 V with DPHY compliance |
| PRU0_GPMC_AD0–AD15 | PRU_ICSSG GPMC Interface | 16-bit multiplexed address/data bus for parallel NOR/ NAND flash or FPGA glue logic interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Cortex-R5F | Enables ASIL D / SIL 3 system-level safety via redundant execution and cross-checking |
| PRU_ICSSG Industrial Offload | Three independent subsystems provide cycle-accurate Ethernet MAC, PWM, encoder, and sigma-delta filtering without CPU load |
| On-Chip Memory ECC | SECDED protection across L2/L3 RAM, MSMC SRAM, and DDR interconnect ensures bit-error resilience in harsh environments |
| Hardware Security Engine | Session-aware cryptographic acceleration (AES/SHA/PKA/DRBG) enables secure firmware updates and encrypted OSPI boot |
| DMSC System Controller | Centralized management of boot, power, clock, reset, firewalls, and safety monitoring-reducing software complexity |
Applications
| Industrial PLC Control | Robotic Motor Drive |
|---|---|
Use Scenario: Real-time motion sequencing and safety-monitored I/O in modular PLC backplanes. IC Role / Device Role / Timing Role: Dual Cortex-R5F executes safety-critical motion control loops; PRU_ICSSG handles EtherCAT frame generation and position feedback decoding. Use Value: Deterministic sub-100 µs loop times with lockstep R5F verification and hardware-based encoder interface reduce external component count. |
Use Scenario: Closed-loop servo control with integrated safety torque off (STO) and safe motion functions. IC Role / Device Role / Timing Role: Cortex-A53 runs Linux-based HMI and diagnostics; Cortex-R5F manages STO state machine and PWM output with trip logic. Use Value: On-chip sigma-delta filters and short-circuit logic enable direct current sensing and immediate fault shutdown without external comparators. |
| HMI with Functional Safety | Grid Protection Relay |
Use Scenario: Operator interface with SIL 2-certified emergency stop and diagnostic logging. IC Role / Device Role / Timing Role: Cortex-A53 renders UI and logs events; DMSC enforces firewall isolation between safety and non-safety domains. Use Value: Integrated voltage/temperature/clock monitors and windowed watchdogs satisfy IEC 61508 diagnostic coverage requirements. |
Use Scenario: Fault detection and breaker coordination in medium-voltage substations. IC Role / Device Role / Timing Role: PRU_ICSSG performs high-speed sampling of analog inputs via ADC; Cortex-R5F executes protection algorithms with <1 ms latency. Use Value: 2× 12-bit ADCs (4 Msamples/s) and 18× sigma-delta filters per PRU_ICSSG enable simultaneous voltage/current harmonic analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar industrial applications processors.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM6528BACDXA | Includes PowerVR SGX544-MP1 GPU; otherwise identical CPU, PRU_ICSSG, and safety architecture | Required when display rendering or OpenGL ES acceleration is needed in HMI or visualization tasks | Select AM6528BACDXA only if GPU functionality is essential; AM6526BACDXA reduces BOM cost and thermal load where graphics are unused |
| AM6546BACDXA | Quad-core Cortex-A53 (two dual-core clusters), same R5F, PRU_ICSSG, and safety features | Suitable for higher-throughput gateway or edge analytics workloads requiring parallel Linux processes | Choose AM6546BACDXA when application demands >2 A53 cores; AM6526BACDXA optimizes power and area for deterministic dual-core control |
Compared with AM6528BACDXA and AM6546BACDXA, the AM6526BACDXA delivers optimal balance of functional safety, real-time determinism, and cost efficiency for dual-core industrial control-without GPU overhead or quad-core complexity-making it ideal for PLCs, drives, and relays where compute density is secondary to reliability and certification rigor.
Availability
AM6526BACDXA is available at Aetrix Electronics and suitable for industrial programmable logic controllers (PLCs), robotic motor drives, and grid infrastructure protection relays requiring stable component supply across extended product lifecycles.
Supply support for AM6526BACDXA 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 AM6526BACDXA belongs to TI's Sitara™ Arm® processor family, designed specifically for industrial 4.0 applications demanding functional safety, real-time industrial networking, and secure edge processing in harsh environments.
FAQ
What is the maximum DDR4 speed supported by the AM6526BACDXA?
The AM6526BACDXA supports DDR4 memory up to DDR-1600 (800 MHz clock, 1600 MT/s data rate) using a 32-bit data bus with 7-bit SECDED ECC. This enables up to 8 GB of addressable memory space while maintaining data integrity in electrically noisy industrial environments. The DDR subsystem is fully compliant with JEDEC DDR4 specifications and includes calibrated write leveling and read training sequences.
Does the AM6526BACDXA support lockstep operation for functional safety?
Yes, the AM6526BACDXA supports lockstep mode on its dual-core Arm Cortex-R5F subsystem, a key requirement for achieving SIL 2 hardware integrity under IEC 61508. In lockstep, both R5F cores execute identical instructions with real-time comparison; mismatch triggers an error signal via the Error Signaling Module (ESM). This capability is validated and documented in TI's functional safety package for AM6526BACDXA.
How many PRU_ICSSG subsystems does the AM6526BACDXA include, and what interfaces do they support?
The AM6526BACDXA integrates three PRU_ICSSG (Programmable Real-Time Unit Industrial Communication Subsystem Generation) units. Each supports up to two 10/100/1000 Ethernet ports (RGMII/MII), two SGMII ports, 24× PWM outputs, 6× multi-protocol encoder interfaces, and 18× sigma-delta filters-enabling native implementation of EtherCAT, Profinet IRT, and TSN without external PHYs or protocol accelerators.
Is the AM6526BACDXA pin-compatible with other AM65xx devices like AM6528BACDXA?
Yes, the AM6526BACDXA shares identical pinout, package (ACD FCBGA-784), and ball assignment with AM6528BACDXA, AM6546BACDXA, and AM6548BACDXA. All four devices use the same mechanical footprint, power rail assignments, and I/O voltage domain mapping-allowing PCB reuse across variants when GPU or core count differences are managed in firmware or layout constraints.
What security features are implemented in hardware on the AM6526BACDXA?
The AM6526BACDXA includes hardware-accelerated AES-128/192/256, SHA2-224/256/384/512, 3DES, PKA, and DRBG with true random number generator. Secure boot enforces hardware root-of-trust, while the DMSC manages granular firewalls, secure DMA paths, and TrustZone-based TEE. These features are silicon-verified and documented in TI's AM6526BACDXA security white paper and certification reports.
AM6526BACDXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 784-LFBGA, FCBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A53, Arm® Cortex®-R5F
- Number of Cores/Bus Width:
- 2 Core, 32-Bit
- Speed:
- 1.1GHz, 400MHz
- Co-Processors/DSP:
- GPU PowerVR SGX544-MP1 3D
- RAM Controllers:
- DDR3, DDR4, LPDDR4
- Graphics Acceleration:
- Yes
- Display & Interface Controllers:
- LVDS, MIPI-CSI
- Ethernet:
- 10/100/1000Mbps (2)
- SATA:
- -
- USB:
- USB 2.0 (1), USB 3.1 (1)
- Voltage - I/O:
- 1.2V, 1.35V, 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- 3DES, AES, DRBG, MD5, PKA, SHA
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 784-FCBGA (23x23)
- Additional Interfaces:
- CAN, I2C, I2S, MMC/SD/SDIO, McASP, McSPI, QSPI, TDM, UART
AM6526BACDXA FAQ
1.How can I place an order for AM6526BACDXA through Aetrix?
Please submit a Request for Quotation (RFQ) for AM6526BACDXA 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 AM6526BACDXA reliable?
The price and inventory of AM6526BACDXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM6526BACDXA is usually 5 days.
3.What payment methods are accepted for AM6526BACDXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM6526BACDXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM6526BACDXA?
AM6526BACDXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM6526BACDXA 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 AM6526BACDXA?
For technical support, including AM6526BACDXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM6526BACDXA requirements.
6.How does Aetrix verify that AM6526BACDXA is sourced from the original manufacturer or authorized distributors?
All AM6526BACDXA 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 AM6526BACDXA meets industry standards.
7.What is the process for return or replacement of AM6526BACDXA?
All AM6526BACDXA units undergo pre-shipment inspection (PSI). If there is an issue with AM6526BACDXA, 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 AM6526BACDXA part is unused and in its original packaging.
Return procedure for AM6526BACDXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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