ATSAMA5D26A-CU - Cortex-A5 MPU 500MHz | 289-LFBGA | Microchip
N.º de pieza: ATSAMA5D26A-CU ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $22.5 | $22,50 |
| 10 | $20.85 | $208,50 |
| 100 | $18.95 | $1.895,00 |
| 500 | $17.4 | $8.700,00 |
| 1.000 | $16.1 | $16.100,00 |
ATSAMA5D26A-CU Descripción general
An embedded MPU is a microprocessor unit - a CPU-centric SoC that requires external memory (DDR), boot flash, and a power management companion IC to form a complete system. Unlike microcontrollers (MCUs) with on-chip Flash, MPUs such as the SAMA5D2 family run a full operating system (typically Linux) on the Cortex-A5 core and offload real-time tasks to companion MCUs. The hierarchy is: Cortex-A5 -> ARMv7-A -> 32-bit application processor -> embedded MPU -> semiconductor. The 'A5' denotes the high-efficiency Cortex-A5 implementation, which prioritises low power while sustaining application workloads.
Key features include industrial temperature range (-40C to +85C), 1.2 V/1.8 V/3.3 V mixed I/O, hardware secure boot, true random number generator, and tamper detection pins. The 'CU' suffix denotes the LFBGA-289 industrial-grade package, while the 'A' revision denotes a silicon rev with bug fixes and security enhancements over earlier SAMA5D2 parts. The MRLA (Mask ROM Loader Alternative) boot path enables in-field firmware updates.
Typical applications include HMI panels, IoT edge gateways, industrial PLC controllers, building automation touchscreens, medical patient monitors, and ruggedised Linux-based control units. For automotive, choose the -CN or AEC-Q100 qualified variants; for cost-sensitive designs, consider SAMA5D22/SAMA5D23 lower-end siblings sharing the same LFBGA-289 footprint.
When designing the PCB, allocate four DDR routing layers with matched-length byte groups, place the LFBGA on inner layers for microvia fan-out, and respect Microchip's PMIC recommendation (MIC2800 or similar). Decouple each 1.2 V/1.8 V/3.3 V rail with 100 nF plus bulk ceramic.
This page consolidates distributor pricing, drop-in SAMA5D2 alternatives, and PCB-level design notes not duplicated in the manufacturer datasheet, enabling faster schematic entry and BOM risk mitigation.
Alternativas directas para ATSAMA5D26A-CU — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAMA5D26A-CU (mismo factor de forma y huella) — difiere en Package, Ethernet, Core Architecture, External Memory Support, USB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMA5D24A-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$9.85 / unidad
Ver hoja de datos →ATSAMA5D22A-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$8.2 / unidad
Ver hoja de datos →ATSAMA5D23A-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$7.2 / unidad
Ver hoja de datos →ATSAMA5D27A-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$7.83 / unidad
Ver hoja de datos →ATSAMA5D26C-CU
✅ Sustitución directa✓ En stock
$11.8 / unidad
Ver hoja de datos →ATSAMA5D26A-CN
✅ Sustitución directa✓ En stock
$15.2 / unidad
Ver hoja de datos →ATSAMA5D26A-CU Valores máximos y características eléctricas
| Core | Arm Cortex-A5 (single-core) |
| Maximum CPU Clock | 500 MHz |
| Architecture | ARMv7-A |
| Internal SRAM | 128 KB |
| External Memory Bus | DDR2/DDR3L/LPDDR2/LPDDR3, 16-bit |
| Boot Memory | QSPI, e.MMC, NAND Flash |
| Encapsulado | 289-LFBGA, 14x14 mm, 0.8 mm pitch |
| Temperatura de funcionamiento | -40C to +85C (industrial) |
| I/O Voltage Rails | 1.2 V, 1.8 V, 3.3 V |
| USB Ports | 3x USB 2.0 (1 HSIC, 2 host/device) |
| Ethernet | 10/100 Mbps MAC (GMII/RMII/MII) |
| CAN | 2x CAN-FD |
| Display Controller | LCD with resistive/capacitive touchscreen I/F |
| Cryptography | AES, SHA-256, TRNG, secure boot |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Guía de configuración de pines de ATSAMA5D26A-CU 289-lfbga, 14x14 mm, 0.8 mm pitch
Configuración de pines para ATSAMA5D26A-CU (encapsulado 289-lfbga, 14x14 mm, 0.8 mm pitch). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para ATSAMA5D26A-CU.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAMA5D26A-CU es adecuado para 7 aplicacións: Industrial HMI Touch Panels, IoT Edge Gateways, Building Automation Controllers, Medical Patient Monitors, Ruggedised Industrial Control Units, Linux-Based AV/Infotainment Devices, Smart Energy / Grid Edge Devices.
Industrial HMI Touch Panels
The ATSAMA5D26A-CU drives industrial HMI panels requiring Linux-based graphics with responsive touch. The Cortex-A5 at 500 MHz plus the integrated LCD controller with resistive/capacitive touchscreen I/F handle Qt/GTK UIs at WVGA resolution, while the 128 KB SRAM plus external DDR3L memory sustains multi-layer graphics without frame drops. Its industrial -40C to +85C temperature range and EMI tolerance suit factory-floor installations. Compared to MCU-based HMI, the MPU approach simplifies networking and remote management via Ethernet, while its hardware crypto accelerators secure firmware updates over fieldbus.
Recomendado
IoT Edge Gateways
For edge gateways bridging industrial protocols to the cloud, the ATSAMA5D26A-CU combines two CAN-FD controllers, 10/100 Ethernet, and three USB 2.0 ports in a single SoC. The Cortex-A5 runs gateway software stacks (Node-RED, MQTT brokers, Modbus TCP) at 500 MHz with Linux overhead budget remaining for TLS handshake acceleration through the integrated AES/SHA engines. The 16-bit DDR3L/LPDDR3 interface sustains high-throughput buffering for protocol translation, while the e.MMC boot path simplifies field firmware provisioning and OTA updates.
Recomendado
Building Automation Controllers
The ATSAMA5D26A-CU suits BACnet/Modbus building controllers with its Cortex-A5 capable of running real-time Linux alongside low-latency I/O. The two CAN-FD controllers support BACnet MS/TP and KNX-style fieldbus, while Ethernet MAC delivers 10/100 connectivity to building management systems. Industrial temperature grade and 0.8 mm LFBGA package enable DIN-rail mounted designs with conformal coating; hardware secure boot ensures only signed firmware executes, a regulatory requirement in many smart-building tenders.
Recomendado
Medical Patient Monitors
Medical patient monitors benefit from the ATSAMA5D26A-CU's low-power Linux-class processing plus deterministic peripherals. The Cortex-A5 at 500 MHz handles waveform analysis, alarm logic, and touchscreen UI simultaneously. Hardware AES and secure boot satisfy IEC 62443 cybersecurity expectations, while the LCD controller drives 1024x768 colour panels typical of bedside displays. Industrial temperature margin ensures reliability across clinical environments, and the dual CAN-FD interfaces simplify integration with hospital asset-tracking networks.
Recomendado
Ruggedised Industrial Control Units
For ruggedised PLC-style control units exposed to vibration and temperature extremes, the ATSAMA5D26A-CU offers -40C to +85C operation in a 14x14 mm LFBGA. The Cortex-A5 runs deterministic Linux with PREEMPT_RT patches for sub-millisecond control loops, while the dual CAN-FD controllers deliver industrial fieldbus connectivity. Hardware TRNG and tamper pins support secure-key storage per IEC 62443. Compared to MCU-based controllers, the MPU approach enables graphical programming interfaces and remote diagnostics over Ethernet without external Wi-Fi modules.
Recomendado
Linux-Based AV/Infotainment Devices
AV receivers, digital signage controllers, and kiosk multimedia players leverage the ATSAMA5D26A-CU's hardware video decode assist, LCD controller, and audio I/F. The Cortex-A5 with NEON media extensions handles H.264 720p decode at 30 fps for streaming signage, while the GPU-assisted 2D composition engine accelerates graphics overlay. Three USB 2.0 ports support touchscreens, RFID readers, and 4G dongles; Ethernet delivers network connectivity. The industrial temperature range suits semi-outdoor installations.
Recomendado
Smart Energy / Grid Edge Devices
Smart meters, sub-station monitors, and grid-edge controllers use the ATSAMA5D26A-CU for its industrial temperature range, hardware crypto (mandatory for DLMS/COSEM authentication), and dual CAN-FD for IEC 61850 station bus. The Cortex-A5 handles DLMS/COSEM protocol stacks with TLS acceleration via the AES engine; e.MMC boot enables secure firmware updates over the meter's 20-year lifetime. Compared to discrete MCU designs, the MPU integrates Ethernet MAC and reduces external component count.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMA5D26A-CU — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMA5D24A-CU | ATSAMA5D22A-CU | ATSAMA5D23A-CU | ATSAMA5D27A-CU | ATSAMA5D26C-CU | ATSAMA5D26A-CN |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 289-LFBGA, 14x14 mm | 289-LFBGA, 14x14 mm - same | 289-LFBGA, 14x14 mm - same | 289-LFBGA, 14x14 mm - same | 289-LFBGA, 14x14 mm - same | 289-LFBGA, 14x14 mm - same | 289-LFBGA, 14x14 mm - same |
| CPU Core | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz | Cortex-A5, 500 MHz |
| Internal SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Ethernet MAC | 10/100 Mbps x1 | 10/100 Mbps x1 | None | 10/100 Mbps x1 | 10/100 Mbps x2 | 10/100 Mbps x1 | 10/100 Mbps x1 |
| CAN-FD Controllers | 2 | 0 | 0 | 0 | 2 | 2 | 2 |
| USB Ports | 3 (2 host/device, 1 HSIC) | 3 (2 host/device, 1 HSIC) | 2 (host/device) | 2 (host/device) | 3 (2 host/device, 1 HSIC) | 3 (2 host/device, 1 HSIC) | 3 (2 host/device, 1 HSIC) |
| Hardware Crypto Engine | AES/SHA/TRNG/secure boot | AES/SHA/TRNG/secure boot | AES/SHA/TRNG/secure boot | AES/SHA/TRNG/secure boot | AES/SHA/TRNG/secure boot + tam | AES/SHA/TRNG/secure boot | AES/SHA/TRNG/secure boot |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | 0C to +70C (commercial) |
Diferenciadores clave
- Balanced feature set with full Ethernet, dual CAN-FD, and 3 USB ports (frente a ATSAMA5D24A-CU)
- Higher peripheral integration than ATSAMA5D22A-CU (frente a ATSAMA5D22A-CU)
- Industrial temperature grade vs commercial CN variant (frente a ATSAMA5D26A-CN)
Notas de diseño
Estimated: 289-LFBGA at 0.8 mm pitch requires an HDI PCB stackup with at least 1-2-1 or 2-4-2 layer count. Use laser-drilled microvias (0.1 mm pad / 0.05 mm drill) for inner-row fan-out. Allocate the top two signal layers and bottom two layers for DDR3L routing with matched byte groups within 25 mil tolerance. Place the MPU on an inner layer for via-in-pad microvia escape; route DDR clocks on internal stripline layers to control impedance at 50 ohm single-ended.
Estimated: The ATSAMA5D26A-CU has separate 1.2 V (core), 1.8 V (DDR3L), and 3.3 V (I/O) rails. Recommended decoupling per Microchip SAMA5D2 hardware design guide: 100 nF X7R ceramic at every VDD pin pair plus 10 uF bulk per rail. Use Microchip's MIC2800 PMIC reference design for power-up sequencing (VDD_3V3 -> VDD_1V8 -> VDD_1V2 with 10 ms offset). Power-on reset behaviour requires the NRST line to be held low until all rails stabilise within 5% tolerance.
Estimated: The 289-LFBGA package's theta_JA depends strongly on PCB copper area and airflow. With a 4-layer JEDEC test board (no airflow), expect theta_JA of approximately 25-30 C/W. At 1 W typical dissipation, junction temperature rises 25-30 C above ambient. For industrial enclosures with no active cooling, ensure at least 4 square inches of top-side copper pour and consider thermal vias under the central balls. The industrial -40C to +85C rating gives margin up to ~85C ambient at full load.
Do not omit the 32.768 kHz slow-clock crystal on the SCLK pins - the SAMA5D2 RTC and low-power modes depend on it. The boot mode straps (BMS pin) must be pulled to the correct state for QSPI, SD card, or e.MMC boot, or the MPU will fail to start. Boot ROM reads BMS at the rising edge of NRST. JTAG and SWD pins are not 5V tolerant; use a 1.8V-compatible debugger. The LFBGA-289 has no standard socket - prototype on a breakout board with a samtec-style BGA-to-PCB adapter.
DDR3L routing must follow the SAMA5D2 hardware design checklist: matched length within 25 mils for the byte groups, 50 ohm single-ended impedance, 100 ohm differential for clock/address/control. Place the DDR3L chips on the same side of the PCB as the MPU to keep vias short; route address/command on an inner stripline layer sandwiched between ground planes. Reference Microchip application note AN-12852 (DDR3L routing) for trace geometry calculations.
Información de cumplimiento
RoHS and lead-free confirmed via Microchip product page. AEC-Q100 automotive qualification not available - the -CU variant is industrial grade. For automotive applications, Microchip recommends the AEC-Q100 qualified SAMA5D2 variants (different MPN suffix).
