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Microchip Technology ATSAMA5D34A-CU
- Part No.:
- ATSAMA5D34A-CU
- Manufacturer:
- Microchip Technology
- Category:
- Microprocessors
- Package:
- 324-LFBGA
- Datasheet:
-
ATSAMA5D34A-CU.pdf
- Description:
- IC MPU SAMA5D3 536MHZ 324LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:102
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Product details
Overview
ATSAMA5D34A-CU from Microchip Technology (formerly Atmel) is a high-performance ARM Cortex-A5-based embedded MPU operating at up to 536 MHz, featuring integrated Gigabit Ethernet MAC (GMAC), dual CAN controllers, 12-channel 12-bit ADC with resistive touchscreen support, and hardware-accelerated AES/TDES/SHA encryption engines. It targets industrial HMI, secure gateways, and battery-powered edge devices requiring real-time connectivity and cryptographic integrity.
For engineers reviewing the ATSAMA5D34A-CU datasheet, ATSAMA5D34A-CU pinout, ATSAMA5D34A-CU application, or ATSAMA5D34A-CU equivalent, key selection criteria include GMAC + EMAC dual Ethernet support, 2× CAN 2.0B compliance, DDR2/LPDDR2 memory controller with 24-bit ECC, and secure boot with TRNG-verified firmware authentication.
Technical Context
The ATSAMA5D34A-CU implements a multi-layer bus architecture with 39 DMA channels to sustain high-bandwidth data flow between its Cortex-A5 core, GMAC, dual CAN, LCD controller, and DDR2/LPDDR2 memory subsystem. Its memory management unit (MMU) and VFPv4 floating-point unit enable Linux-capable deterministic execution.
Security is enforced via dedicated hardware blocks: a True Random Number Generator (TRNG), FIPS-compliant AES-256/TDES encryption engine, SHA-1/224/256/384/512 hash accelerator, and Atmel Secure Boot that validates signed firmware images before execution - all independent of software stack integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-A5 @ 536 MHz with VFPv4 FPU and MMU - enables full Linux OS deployment and floating-point-intensive control algorithms. |
| Memory Interface | 32-bit DDR2/LPDDR2 controller supporting 512 MB with datapath scrambling and 24-bit PMECC - ensures reliable NAND/DDR operation in noisy industrial environments. |
| Connectivity | Gigabit EMAC (IEEE 1588) + 10/100 EMAC + 2× CAN 2.0B controllers - supports time-synchronized industrial networking and dual-bus automotive diagnostics. |
| Analog Peripherals | 12-channel 12-bit ADC with integrated resistive touchscreen interface (AD0UL–AD3LR) - eliminates external touch controller for cost-sensitive HMIs. |
| Security Engine | Hardware-accelerated AES-256/TDES/SHA-1–512 + TRNG + Secure Boot - enables encrypted OTA updates and anti-cloning protection without CPU overhead. |
| Package | 324-ball LFBGA (15 × 15 mm, 0.8 mm pitch) - compatible with standard SMT reflow profiles and supports high I/O count for complex peripheral routing. |
| Power Management | Shut-down controller, battery backup registers, and very slow clock mode (<1 µA) - extends runtime in battery-backed applications like portable data loggers. |
Pinout & Package
ATSAMA5D34A-CU is housed in a 324-ball LFBGA package (15 × 15 × 1.4 mm, 0.8 mm pitch), optimized for thermal dissipation and high-density PCB layouts in industrial enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA31 | Parallel I/O Controller A | Configurable GPIO bank with Schmitt-trigger inputs, slew-rate control, and per-pin pull-up/down - used for LCD data bus (LCDDAT0–23), PWM outputs, and general-purpose control signals. |
| PB0–PB26 | Parallel I/O Controller B | Dedicated GMAC signal mapping (GTX0–GTX7, GRX0–GRX7, GMDC/GMDIO) and MCI1 interface - enables direct connection to Gigabit PHY and SD/eMMC cards without level-shifting. |
| PC0–PC31 | Parallel I/O Controller C | EMAC (ETX0/ETX1, ERX0/ERX1), SPI1, TWI1, and ADC analog inputs (AD0–AD11) - supports RMII Ethernet, serial flash, and capacitive/resistive touch sensing. |
| PD0–PD19 | Parallel I/O Controller D | MCI0 (eMMC/SD), SPI0, USART0/1, and ADC trigger (ADTRG) - provides primary boot media interface and debug UART with hardware flow control. |
| PE0–PE31 | Parallel I/O Controller E | External Bus Interface (EBI) address/data (A0–A25, D0–D15), NAND control (NANDALE/NANDCLE), and wait signals - enables direct connection to NOR/NAND flash and SRAM peripherals. |
| DDR_A0–DDR_A13, DDR_D0–DDR_D31 | DDR2/LPDDR2 Memory Interface | 32-bit data bus + 14-bit address bus + differential clocks (DDR_CK/DDR_CKN), calibration pins (DDR_CALP/CALN), and VREF - meets JEDEC DDR2-800 timing requirements with on-die termination control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD TFT Controller | Hardware overlays, alpha-blending, rotation, scaling, and color space conversion - reduces GPU load and enables smooth UI rendering on 800×480+ displays without external graphics IC. |
| Dual Ethernet MACs | GMAC (10/100/1000 Mbps, IEEE 1588) + EMAC (10/100 Mbps) - allows redundant network paths or protocol segregation (e.g., PROFINET over GMAC, Modbus TCP over EMAC). |
| Secure Boot with TRNG | Immutable root-of-trust chain verifying signed firmware images using hardware-generated entropy - prevents unauthorized firmware injection in field-deployed gateways. |
| Image Sensor Interface (ISI) | ITU-R BT.601/656 compliant parallel input supporting up to 12-bit YUV/RGB streams - enables direct connection to CMOS image sensors for machine vision edge nodes. |
| Programmable Clock Generator | Two PLLs (400–1000 MHz system PLL, 480 MHz USB PLL) + three programmable clock outputs (PCK0–PCK2) - simplifies clock tree design for multi-peripheral synchronization (e.g., ADC sampling aligned to display refresh). |
Applications
| Industrial HMI Panel | Secure IoT Gateway |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status visualization and alarm logging. IC Role / Device Role / Timing Role: Main application processor executing Linux-based Qt GUI, driving 800×480 RGB LCD via LCDC, sampling 4-wire resistive touch via ADC, and communicating via dual CAN to field devices. Use Value: Integrated LCD controller and touch ADC eliminate two external ICs; dual CAN and GMAC enable concurrent machine control and cloud telemetry without bandwidth contention. | Use Scenario: Field-deployed edge gateway aggregating sensor data from Modbus RTU, CAN bus, and BLE peripherals, then forwarding encrypted payloads to cloud via TLS over Ethernet. IC Role / Device Role / Timing Role: Secure application host running embedded Linux, performing AES-256 encryption in hardware, validating firmware signatures at boot, and managing time-synchronized packet timestamps via IEEE 1588 GMAC. Use Value: Hardware crypto acceleration offloads CPU during OTA updates; IEEE 1588 support enables sub-microsecond timestamp alignment across distributed sensor networks. |
| Portable Medical Data Logger | Automotive Diagnostic Tool |
Use Scenario: Battery-powered device acquiring ECG/SpO₂ analog waveforms, storing encrypted logs on eMMC, and uploading via Wi-Fi (via USB-hosted module). IC Role / Device Role / Timing Role: Low-power MPU managing ADC sampling at 1 kHz, writing to NAND with 24-bit ECC, entering shutdown mode between acquisitions, and waking on RTC alarm or USB insertion. Use Value: Sub-0.5 mW low-power mode extends battery life; integrated PMECC prevents data corruption in long-term storage; USB host port powers and communicates with external Wi-Fi modules. | Use Scenario: Handheld tool connecting to vehicle OBD-II port via CAN and displaying diagnostic trouble codes (DTCs) on local LCD while logging session data to SD card. IC Role / Device Role / Timing Role: Real-time CAN 2.0B controller interfacing with vehicle ECUs, driving 480×272 TFT display, managing SD card writes via HSMCI2, and executing UDS diagnostic stack on Linux. Use Value: Dual CAN controllers allow simultaneous communication with powertrain and body ECUs; hardware CRC and ECC ensure reliable log storage; LCD controller enables responsive UI without frame buffer bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded MPU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATSAMA5D27C-CU | ARM Cortex-A5 @ 500 MHz; includes LPDDR2 controller but no GMAC; adds TrustZone security extensions and QSPI interface. | Lacks Gigabit Ethernet and second CAN; better suited for cost-constrained, security-critical applications without high-speed wired networking. | Select when TrustZone-assisted secure enclave isolation is required over dual Ethernet/CAN bandwidth. |
| NXP i.MX6ULL | ARM Cortex-A7 @ 900 MHz; single 10/100 EMAC; no hardware crypto accelerators; supports DDR3L instead of DDR2/LPDDR2. | Higher CPU clock but no GMAC or dual CAN; requires external crypto IC for AES/SHA; broader Linux BSP support but weaker real-time determinism. | Select when higher single-thread performance and mature Yocto ecosystem outweigh need for integrated Gigabit Ethernet and hardware crypto. |
Compared with ATSAMA5D34A-CU, ATSAMA5D27C-CU trades GMAC and dual CAN for TrustZone and QSPI - ideal for secure boot-critical but bandwidth-light designs; NXP i.MX6ULL offers higher clock speed and wider community support but requires external components to match ATSAMA5D34A-CU's integrated connectivity and security features.
Availability
ATSAMA5D34A-CU is available at Aetrix Electronics and suitable for industrial HMI panels, secure IoT gateways, portable medical data loggers, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.
Supply support for ATSAMA5D34A-CU 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 acquired Atmel in 2016 and maintains full support for the SAMA5D3 series, delivering industrial-grade reliability, long-term availability, and comprehensive documentation including reference schematics and Linux kernel BSPs.
The SAMA5D3 product line was designed specifically for high-integration, low-power industrial and consumer applications demanding rich connectivity (dual Ethernet, CAN, USB), advanced human-machine interfaces (LCD, touch, camera), and hardware-enforced security - without requiring external co-processors.
FAQ
What is the maximum operating frequency of the ATSAMA5D34A-CU?
The ATSAMA5D34A-CU operates at a maximum CPU frequency of 536 MHz, achieved through its ARM Cortex-A5 core with integrated VFPv4 floating-point unit and optimized memory subsystem. This frequency is sustained under industrial temperature conditions (–40°C to +85°C) with appropriate thermal management and power delivery. The device also supports dynamic voltage and frequency scaling (DVFS) to reduce power consumption during low-load periods while maintaining real-time responsiveness.
Does the ATSAMA5D34A-CU support secure boot, and how is it implemented?
Yes, the ATSAMA5D34A-CU implements Atmel Secure Boot using a hardware-verified chain of trust. During reset, the ROM bootloader reads a signed firmware image from boot media (eMMC, NAND, or SD), validates its digital signature using embedded public keys, and executes only if SHA-256 hash and RSA-2048 signature checks pass. The process relies on the on-chip TRNG for entropy and immutable fuse-based key storage - ensuring that ATSAMA5D34A-CU firmware cannot be tampered with or downgraded without physical access and key revocation.
Which memory types are supported by the ATSAMA5D34A-CU's integrated controllers?
The ATSAMA5D34A-CU supports DDR2, LPDDR, and LPDDR2 SDRAM via its 32-bit dynamic RAM controller (up to 512 MB), and SLC/MLC NAND Flash with up to 24-bit ECC correction via its Static Memory Controller. It also supports NOR Flash, SRAM, and PSRAM through the External Bus Interface (EBI), and bootable storage via three High-Speed Multimedia Card Interfaces (HSMCI0–2) for eMMC 4.3 and SD 2.0 cards - giving ATSAMA5D34A-CU flexibility across performance, cost, and reliability requirements.
How many CAN interfaces does the ATSAMA5D34A-CU provide, and what protocol versions are supported?
The ATSAMA5D34A-CU integrates two fully independent CAN controllers (CAN0 and CAN1), each compliant with ISO 11898-1:2003 (CAN 2.0 Part A and Part B). Each controller supports 8 message mailboxes, programmable bit timing, loopback self-test mode, and automatic retransmission. These controllers are accessible on dedicated pins (CANTX0/CANRX0 and CANTX1/CANRX1) and are supported in mainline Linux via the flexcan driver - enabling ATSAMA5D34A-CU to serve as a dual-bus automotive or industrial fieldbus master.
What is the function of the Image Sensor Interface (ISI) in the ATSAMA5D34A-CU?
The Image Sensor Interface (ISI) in the ATSAMA5D34A-CU is a dedicated parallel input block compliant with ITU-R BT.601 and BT.656 standards, supporting up to 12-bit YUV or RGB video streams at pixel clocks up to 75 MHz. It includes hardware DMA, vertical/horizontal sync detection, and configurable data packing - allowing direct connection to CMOS image sensors without external FIFOs or glue logic. This capability makes ATSAMA5D34A-CU suitable for entry-level machine vision, barcode scanning, and video surveillance edge nodes where low-latency preprocessing is required.
ATSAMA5D34A-CU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 324-LFBGA
- Series:
- SAMA5D3
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A5
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 536MHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- LPDDR, LPDDR2, DDR2
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- LCD, Touchscreen
- Ethernet:
- 10/100/1000Mbps (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:
- 324-LFBGA (15x15)
- Additional Interfaces:
- CAN, I2C, MMC/SD/SDIO, SPI, SSC, USART
ATSAMA5D34A-CU FAQ
1.How can I place an order for ATSAMA5D34A-CU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATSAMA5D34A-CU 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 ATSAMA5D34A-CU reliable?
The price and inventory of ATSAMA5D34A-CU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATSAMA5D34A-CU is usually 5 days.
3.What payment methods are accepted for ATSAMA5D34A-CU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATSAMA5D34A-CU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATSAMA5D34A-CU?
ATSAMA5D34A-CU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATSAMA5D34A-CU 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 ATSAMA5D34A-CU?
For technical support, including ATSAMA5D34A-CU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATSAMA5D34A-CU requirements.
6.How does Aetrix verify that ATSAMA5D34A-CU is sourced from the original manufacturer or authorized distributors?
All ATSAMA5D34A-CU 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 ATSAMA5D34A-CU meets industry standards.
7.What is the process for return or replacement of ATSAMA5D34A-CU?
All ATSAMA5D34A-CU units undergo pre-shipment inspection (PSI). If there is an issue with ATSAMA5D34A-CU, 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 ATSAMA5D34A-CU part is unused and in its original packaging.
Return procedure for ATSAMA5D34A-CU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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