Microchip Technology ATSAMA5D41B-CUR
- Part No.:
- ATSAMA5D41B-CUR
- Manufacturer:
- Microchip Technology
- Category:
- Microprocessors
- Package:
- 289-LFBGA
- Datasheet:
-
ATSAMA5D41B-CUR.pdf
- Description:
- IC MPU SAMA5D4 600MHZ 289LFBGA
- Quantity:
- Payment:

- Shipping:

Inventory:1,000
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Product details
Overview
ATSAMA5D41B-CUR from Microchip Technology is a 600 MHz Arm® Cortex®-A5-based MPU with TrustZone® security, 128 KB L2 cache, dual 10/100 Ethernet MACs with IEEE 1588 v2, and hardware-accelerated 720p video decode (MPEG-4/H.264/VP8/JPEG). It integrates a 5-channel 10-bit ADC with resistive touchscreen support and supports DDR2/LPDDR2 and NAND Flash with 24-bit ECC - deployed in industrial HMIs and secure IoT gateways.
For engineers reviewing the ATSAMA5D41B-CUR datasheet, ATSAMA5D41B-CUR pinout, ATSAMA5D41B-CUR application, or ATSAMA5D41B-CUR equivalent, key selection criteria include its LFBGA289 package, 16-bit DDR datapath, absence of integrated video decoder, and compatibility with Linux-based embedded systems requiring cryptographic acceleration (AES/SHA/RSA/ECC) and tamper detection via 8 PIOBU pins.
Technical Context
The ATSAMA5D41B-CUR implements a dual-core-capable Armv7-A architecture with NEON SIMD engine and MMU, operating at up to 600 MHz with worst-case 945 MIPS performance. Its memory subsystem includes 32 KB instruction and data caches, 128 KB L2 cache, and a high-bandwidth 16-bit DDR2/LPDDR2 controller supporting up to 512 MB with on-the-fly AES encryption/decryption.
Security is enforced through Arm TrustZone®, a dedicated Secure Advanced Interrupt Controller, Integrity Check Monitor (ICM) using SHA256, 8 KB scrambled SECURAM, 512-bit fuse-protected registers, and a Public Key Coprocessor (CPKCC) for RSA/ECC/DSA operations - all coordinated by Microchip's secure boot loader in 128 KB internal ROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-A5 @ 600 MHz, Armv7-A Thumb2, NEON, TrustZone, 945 MIPS (worst case) |
| Memory Interface | 16-bit DDR2/LPDDR2 controller supporting 512 MB with 24-bit ECC and on-the-fly AES encryption/decryption |
| Security Features | TrustZone, ICM (SHA256), 8 KB SECURAM, 512-bit fuse box, CPKCC coprocessor for RSA/ECC/AES/SHA/TDES/TRNG |
| Peripherals | Dual 10/100 Ethernet MACs with IEEE 1588 v2, 3x HS USB (1 device + 3 host), 5x USART, 4x TWI, 3x SPI, 3x TC, 4-channel PWM, 5-channel 10-bit ADC w/ touchscreen |
| Package | LFBGA289, 14×14 mm body, 0.8 mm pitch, 152 user I/Os with slew rate control and Schmitt-trigger inputs |
| Power Modes | Three software-selectable low-power states: Idle (CPU stopped, full bus speed), Ultra-low-power (CPU stopped, min bus speed), Backup (RTC + backup SRAM only) |
Pinout & Package
LFBGA289 package: 14×14 mm body, 0.8 mm pitch, 289 stubless balls. Pinout defined per Microchip DS60001525C Section 3.2; primary I/O functions include dual GMAC interfaces (G0/G1), DDR2/LPDDR2 signals (DDR_A[13:0], DDR_D[15:0]), NAND control (NANDALE/NANDCLE/NANDRDY), and peripheral multiplexing across five PIO controllers (PA–PE).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G0_TX0–G0_TX3 / G0_RX0–G0_RX3 | Ethernet MAC 0 Data I/O | 10/100 Mbps PHY interface with IEEE 1588 timestamping capability |
| G1_TX0–G1_TX3 / G1_RX0–G1_RX3 | Ethernet MAC 1 Data I/O | Independent second 10/100 Mbps port for redundant or dual-network topology |
| DDR_A[13:0] / DDR_D[15:0] | DDR2/LPDDR2 Address & Data Bus | 16-bit wide interface supporting 512 MB density; requires DDR_CALP/CALN calibration |
| NANDALE / NANDCLE / NANDRDY | NAND Flash Control Signals | Direct interfacing to SLC/MLC NAND with 24-bit PMECC error correction |
| AD0–AD4 | Analog Inputs | 5-channel 10-bit ADC with dedicated resistive touchscreen measurement circuitry |
| PIOBU0–PIOBU7 | Tamper Detection Inputs | Secure I/Os for static/dynamic intrusion monitoring per SBM module |
Key Features
| Feature | Design Value |
|---|---|
| Arm TrustZone Security | Hardware-enforced isolation between secure and non-secure worlds for bootloader, crypto keys, and firmware updates |
| On-the-fly DDR Encryption | AES-128 bridge (AESB) encrypts/decrypts external DDR traffic transparently without CPU overhead |
| Integrity Check Monitor (ICM) | SHA256-based real-time memory content verification to detect unauthorized code or data modification |
| Public Key Coprocessor (CPKCC) | Hardware acceleration for RSA-4096, ECC over GF(p)/GF(2ⁿ), DSA, and key generation - reducing TLS handshake latency |
| Low-Power Operation | Backup mode draws <10 µA while retaining RTC, backup SRAM, and wakeup logic - enabling battery-backed operation |
Applications
| Industrial HMI Panel | Secure Edge Gateway |
|---|---|
Use Scenario: A factory-floor operator interface with 7-inch TFT LCD, Ethernet backhaul, and local USB storage. IC Role / Device Role / Timing Role: Main application processor executing Linux with Qt-based UI, driving LCD via LCDC controller and managing Ethernet communication. Use Value: Hardware-accelerated alpha blending and rotation enable smooth 720p UI rendering; dual GMACs support PROFINET or EtherNet/IP redundancy. | Use Scenario: Field-deployed smart meter concentrator aggregating data from 50+ submeters via RS-485 and forwarding securely to cloud via TLS. IC Role / Device Role / Timing Role: Root-of-trust anchor performing secure boot, encrypted firmware updates, and TLS offload via CPKCC and AESB. Use Value: SECURAM and tamper-detect pins prevent physical cloning; ICM validates runtime integrity of critical firmware partitions. |
| Medical Device Controller | Video Surveillance Node |
Use Scenario: Portable ultrasound system requiring real-time sensor data acquisition, image processing, and DICOM export over Ethernet. IC Role / Device Role / Timing Role: Central controller interfacing CMOS image sensor via ISI, running real-time OS for signal processing, and handling DICOM network stack. Use Value: ISI interface supports BT.656 video input; NEON engine accelerates FFT and filtering; dual Ethernet enables isolated diagnostic and clinical networks. | Use Scenario: IP camera with motion-triggered recording, H.264 encoding (external codec), and remote configuration via HTTPS. IC Role / Device Role / Timing Role: System-on-module host managing camera sensor, SD card storage, and secure web server with certificate-based authentication. Use Value: 16-bit DDR interface provides sufficient bandwidth for 1080p preview streams; TRNG and SHA512 support FIPS-compliant certificate generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MPU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATSAMA5D43B-CUR | Same LFBGA289 package but includes hardware video decoder (VDEC) supporting H.264/MPEG-4/VP8 | Required for local video playback or transcoding; ATSAMA5D41B-CUR lacks VDEC block entirely | Select when video decode offload is mandatory; otherwise ATSAMA5D41B-CUR reduces BOM cost and power |
| ATSAMA5D42B-CUR | TFBGA361 package (16×16 mm), 32-bit DDR datapath, same peripheral set but no video decoder | Higher DDR bandwidth (32-bit vs 16-bit) suits memory-intensive applications; larger footprint increases PCB area | Choose for higher memory throughput needs where board space allows TFBGA361; not pin-compatible |
Compared with ATSAMA5D43B-CUR, ATSAMA5D41B-CUR omits the video decoder to reduce cost and power, making it optimal for non-video HMI or gateway use; versus ATSAMA5D42B-CUR, it trades DDR bandwidth for smaller LFBGA289 footprint and lower routing complexity.
Availability
ATSAMA5D41B-CUR is available at Aetrix Electronics and suitable for industrial HMI panels, secure edge gateways, and medical device controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ATSAMA5D41B-CUR 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
Microchip Technology is a leading provider of microcontrollers, analog devices, FPGAs, and security solutions, headquartered in Chandler, Arizona.
The SAMA5D4 series is designed for Linux-capable, security-critical embedded applications in industrial automation, IoT infrastructure, and human-machine interfaces - emphasizing hardware-rooted trust, low-power operation, and rich peripheral integration.
FAQ
Does ATSAMA5D41B-CUR include an integrated video decoder?
No, ATSAMA5D41B-CUR does not include a hardware video decoder. Per Microchip's DS60001525C-page 3 table, only SAMA5D44 and SAMA5D43 variants feature the VDEC block. ATSAMA5D41B-CUR is optimized for non-video applications such as secure gateways and control panels where video decode is handled externally or omitted.
What is the DDR interface width supported by ATSAMA5D41B-CUR?
ATSAMA5D41B-CUR supports a 16-bit DDR2/LPDDR2 interface, as confirmed in DS60001525C-page 3 under "SAMA5D4 Series Devices" table. This differs from the 32-bit interface in SAMA5D44/SAMA5D42 and impacts maximum memory bandwidth and supported density configurations.
How many Ethernet MACs does ATSAMA5D41B-CUR integrate, and do they support IEEE 1588?
ATSAMA5D41B-CUR integrates two independent 10/100 Mbps Ethernet MACs (GMAC0 and GMAC1), both compliant with IEEE 1588 v2 Precision Time Protocol. Each MAC includes dedicated timestamping logic and registers for hardware time synchronization - essential for industrial automation and synchronized sensor networks.
What security features are implemented in ATSAMA5D41B-CUR beyond Arm TrustZone?
ATSAMA5D41B-CUR includes Integrity Check Monitor (ICM) with SHA256, 8 KB scrambled SECURAM, 512-bit fuse-protected registers, tamper-detection pins (PIOBU0–PIOBU7), True Random Number Generator (TRNG), and a Public Key Coprocessor (CPKCC) for RSA/ECC. These are documented in DS60001525C pages 2–3 and enable secure boot, encrypted firmware updates, and runtime memory integrity validation.
Is ATSAMA5D41B-CUR pin-compatible with other SAMA5D4 family members?
No, ATSAMA5D41B-CUR is not pin-compatible with other SAMA5D4 variants. It uses the 289-ball LFBGA package, whereas SAMA5D42/SAMA5D44 use 361-ball TFBGA. Signal mapping and ball count differ significantly - e.g., DDR bus width (16-bit vs 32-bit), VDEC presence, and peripheral allocation - requiring unique PCB layout.
ATSAMA5D41B-CUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 289-LFBGA
- Series:
- SAMA5D4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A5
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 600MHz
- Co-Processors/DSP:
- Multimedia; NEON™ SIMD
- RAM Controllers:
- LPDDR, LPDDR2, DDR2
- Graphics Acceleration:
- Yes
- Display & Interface Controllers:
- LCD, Touchscreen
- Ethernet:
- 10/100Mbps (1)
- SATA:
- -
- USB:
- USB 2.0 (3)
- Voltage - I/O:
- 1.2V, 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- AES, SHA, TDES, TRNG
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 289-LFBGA (14x14)
- Additional Interfaces:
- EBI, I2C, MMC/SD/SDIO, SPI, SSC, UART, USART
ATSAMA5D41B-CUR FAQ
1.How can I place an order for ATSAMA5D41B-CUR through Aetrix?
Please submit a Request for Quotation (RFQ) for ATSAMA5D41B-CUR 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 ATSAMA5D41B-CUR reliable?
The price and inventory of ATSAMA5D41B-CUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATSAMA5D41B-CUR is usually 5 days.
3.What payment methods are accepted for ATSAMA5D41B-CUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATSAMA5D41B-CUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATSAMA5D41B-CUR?
ATSAMA5D41B-CUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATSAMA5D41B-CUR 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 ATSAMA5D41B-CUR?
For technical support, including ATSAMA5D41B-CUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATSAMA5D41B-CUR requirements.
6.How does Aetrix verify that ATSAMA5D41B-CUR is sourced from the original manufacturer or authorized distributors?
All ATSAMA5D41B-CUR 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 ATSAMA5D41B-CUR meets industry standards.
7.What is the process for return or replacement of ATSAMA5D41B-CUR?
All ATSAMA5D41B-CUR units undergo pre-shipment inspection (PSI). If there is an issue with ATSAMA5D41B-CUR, 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 ATSAMA5D41B-CUR part is unused and in its original packaging.
Return procedure for ATSAMA5D41B-CUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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