ATSAMA5D28A-CU - ARM Cortex-A5 500MHz MPU, 289-LFBGA | Microchip
Teilenummer: ATSAMA5D28A-CU ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $22.5 | $22,50 |
| 10 | $20.78 | $207,80 |
| 100 | $18.45 | $1.845,00 |
| 500 | $16.4 | $8.200,00 |
| 1.000 | $14.85 | $14.850,00 |
ATSAMA5D28A-CU Übersicht
A microprocessor (MPU) is the central processing unit of an embedded system — a fully integrated SoC-class device that runs an operating system (typically Linux) and orchestrates peripherals, memory, and external interfaces. Compared with microcontrollers (MCUs), MPUs expose DDR memory controllers and high-bandwidth peripherals, sitting at the top of the embedded-compute hierarchy: MPU → application processor → system-on-chip → semiconductor. The SAMA5D2 family targets industrial HMI, IoT gateways, and connected-device designs needing Linux-class software environments at low power.
Key features include support for DDR2/DDR3L/LPDDR2/LPDDR3 external memories with ECC, QSPI and e.MMC flash interfaces, and hardware cryptography with secure boot. Peripheral connectivity spans multiple I2C, SPI, USART/UART, CAN-FD, HSIC, USB 2.0 with PHY, 10/100 Ethernet, and a 12-bit ADC. An LCD controller with touch-screen support and a parallel CMOS sensor interface suit graphical and vision-based applications. The -CU suffix denotes a 289-LFBGA commercial-grade package.
From an architectural perspective, the Cortex-A5 implements the ARMv7-A architecture with NEON SIMD, achieving 1.39 DMIPS/MHz, while the Cryptography Accelerator offloads AES, SHA, and public-key operations. The Advanced Interrupt Controller (AIC) and 16-channel DMA engine reduce CPU overhead for high-throughput peripherals. An on-chip secure RTC, power-management controller, and multiple low-power modes (Idle, Ultra-Low-Power, Backup, and Shutdown) allow deep sleep at sub-microamp standby currents for battery-backed designs.
Typical applications include industrial HMI panels, building-automation controllers, IoT edge gateways, medical point-of-care devices, and Linux-based smart appliances. The combination of high CPU throughput, multimedia extensions, and integrated connectivity makes the part especially attractive for graphics-rich connected devices.
When designing with this MPU, ensure the PCB layout follows Microchip's DDR routing and decoupling guidelines in the application notes; an external switching regulator is typically required for the core 1.2V rail. Developers should also plan for boot media selection between QSPI flash and SD/e.MMC.
This page synthesizes distributor pricing, drop-in same-brand SAMA5D2 alternatives, and practical design notes not consolidated on a single datasheet reference page.
Drop-in-Alternativen für ATSAMA5D28A-CU – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAMA5D28A-CU (gleiche Bauform und Footprint) – abweichend in Package, External Memory Support, Backup Mode Current, Ethernet, Operating Temperature.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMA5D28A-CN
✅ Drop-In✓ Auf Lager
$11.4 / Stück
Datenblatt ansehen →ATSAMA5D28A-CNR
✅ Drop-In✓ Auf Lager
$15.4 / Stück
Datenblatt ansehen →ATSAMA5D27C-CUR
✅ Drop-In✓ Auf Lager
$12.9 / Stück
Datenblatt ansehen →ATSAMA5D27B-CU
✅ Drop-In✓ Auf Lager
$11.85 / Stück
Datenblatt ansehen →ATSAMA5D27A-CU
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$7.83 / Stück
Datenblatt ansehen →ATSAMA5D27A-CNR
✅ Drop-In✓ Auf Lager
$10.95 / Stück
Datenblatt ansehen →ATSAMA5D26C-CU
✅ Drop-In✓ Auf Lager
$11.8 / Stück
Datenblatt ansehen →ATSAMA5D22C-CU
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$7.14 / Stück
Datenblatt ansehen →ATSAMA5D28A-CU Grenzwerte & elektrische Eigenschaften
| Core Architecture | ARM Cortex-A5 (32-bit) |
| Maximum CPU Clock | 500 MHz |
| Number of Cores | 1 |
| SIMD Engine | ARM NEON |
| Floating-Point Unit | Yes (VFPv4) |
| Instruction Set | ARMv7-A |
| On-chip ROM | 160 KB (secure boot) |
| External Memory Support | DDR2 / DDR3L / LPDDR2 / LPDDR3 (16-bit, with ECC) |
| Flash Interface | QSPI, e.MMC, SD |
| Gehäuse | 289-LFBGA (14x14 mm) |
| Montageart | Surface Mount |
| Betriebstemperatur | -40C to +85C (industrial grade per -CU suffix) |
| Supply Voltage (Core) | 1.2 V |
| LCD Controller | Yes (with touch-screen support) |
| Cryptography | AES, SHA, secure boot (TRNG + AES-OTF) |
| Ethernet | 10/100 Mbps MAC with PHY interface |
| USB | USB 2.0 Host + Device with on-chip PHY |
| CAN | CAN-FD |
| ADC | 12-bit, multi-channel |
| RoHS-Status | Compliant |
ATSAMA5D28A-CU 289-lfbga (14x14 mm) Pinbelegungsleitfaden
Pinbelegung für ATSAMA5D28A-CU (289-lfbga (14x14 mm)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für ATSAMA5D28A-CU.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ATSAMA5D28A-CU ist geeignet für 7 Anwendungs: Industrial HMI and Operator Panels, IoT Edge Gateways and Connected Appliances, Building-Automation Controllers, Medical Point-of-Care Devices, Smart Appliance Control Boards, Connected-Print and Office Imaging, Connected-Display and Digital Signage.
Industrial HMI and Operator Panels
The ATSAMA5D28A-CU is purpose-built for industrial human-machine interface (HMI) panels, where the 500 MHz Cortex-A5 core drives Linux-based Qt/GTK touchscreens while the on-chip LCD controller supports XGA-class TFTs with hardware touch sensing. Its 1.39 DMIPS/MHz sustained throughput and NEON-accelerated 2D blit enable fluid UI rendering, while dual QSPI + 16-bit DDR3L with ECC delivers responsive boot and reliable memory under factory-floor vibration. Industrial CAN-FD connectivity directly interfaces with PLCs and motor drives without an external bridge, and the -40C to +85C operating range handles cabinet temperatures. Compared to a discrete MPU + external LCD bridge design, integrating the controller saves roughly 8-12 USD in BOM while cutting board area by ~20%, making the ATSAMA5D28A-CU a natural choice for compact fanless HMI designs.
Empfohlen
IoT Edge Gateways and Connected Appliances
The ATSAMA5D28A-CU serves as the Linux host processor in edge gateways aggregating sensor data from BLE/Zigbee sub-radios, Modbus industrial buses, and Wi-Fi uplinks. Its hardware cryptography (AES, SHA, True RNG) secures TLS 1.3 sessions at the edge without off-loading to a separate secure element, reducing BOM and latency. The 10/100 Ethernet MAC with PHY interface and two USB 2.0 ports provide simultaneous uplink and local-storage paths, while LPDDR3 support keeps active power low for thermally-constrained enclosures. Deep-sleep with sub-microamp RTC retention enables battery-backed wake-on-LAN-style operation between maintenance windows, making the ATSAMA5D28A-CU ideal for telemetry gateways requiring Linux-class protocol stacks without an MPU-class power budget.
Empfohlen
Building-Automation Controllers
In KNX, BACnet, or Modbus building-automation hubs, the ATSAMA5D28A-CU integrates the master controller, graphical user interface, and multi-protocol bridge in a single SoC. Multiple I2C/SPI/USART instances permit direct connection to HVAC sensor matrices, lighting controllers, and access-management peripherals without an external bus expander. CAN-FD links to elevator and fire-alarm systems, while Ethernet carries IP-based BMS backhaul. The 12-bit ADC handles analog sensor reads for legacy equipment, reducing the need for a separate signal-conditioning ASIC. Compared with a microcontroller-only architecture, running a real-time Linux stack on the ATSAMA5D28A-CU simplifies OTA updates and lets developers reuse mainstream networking libraries.
Empfohlen
Medical Point-of-Care Devices
The ATSAMA5D28A-CU powers portable diagnostic instruments such as blood-analyzers, ultrasound carts, and connected glucose monitors where a 500 MHz Cortex-A5 host runs embedded Linux with medical-grade UI frameworks. Its hardware AES-OTF engine accelerates encrypted sensor data pipelines for HIPAA-compliant cloud sync, while the LCD controller drives multi-touch capacitive displays with hardware gestures. The 16-bit DDR3L interface with ECC ensures memory reliability for clinical record keeping, and the commercial -40C to +85C range handles hospital-room thermal envelopes. Compared with external-display-controller-based designs, integrating the LCD pipeline saves roughly 15% board area, enabling the slim chassis required for handheld point-of-care designs.
Empfohlen
Smart Appliance Control Boards
The ATSAMA5D28A-CU is widely adopted in connected refrigerators, induction cooktops, and washing-machine mainboards where its Cortex-A5 core runs Linux/Android-Thing-style UI stacks on capacitive touchscreens and bridges to motor-control BLDC drivers via CAN-FD. The parallel CMOS sensor interface accommodates barcode or machine-vision modules for product identification in connected kitchens, while I2S interfaces drive audio confirmation cues. DDR3L at 16-bit and ECC extend memory reliability over the appliance's 10+ year service life, and the secure-boot chain prevents unauthorized firmware from being flashed during service. Compared with a microcontroller + external NPU architecture, the integrated Cortex-A5 + NEON design cuts system cost by roughly 25% at moderate AI feature load.
Empfohlen
Connected-Print and Office Imaging
In networked printers, MFPs, and label-printers, the ATSAMA5D28A-CU runs embedded Linux image-rendering pipelines while exposing 10/100 Ethernet, USB host and device, and SD/QSPI flash for firmware upgrade. Its NEON SIMD accelerates JPEG/PNG decoding for thumbnail rendering on preview LCDs, while CAN-FD interfaces with paper-handling subsystems and stapler modules. Hardware AES secures print-job authentication and TLS for fleet-management protocols, and the LCD controller drives operator panels. Compared with a discrete MPU + FPGA image pipeline, the integrated ATSAMA5D28A-CU design simplifies board layout and reduces component count by roughly 30%, easing the FCC/CE certification path for connected office equipment.
Empfohlen
Connected-Display and Digital Signage
The ATSAMA5D28A-CU drives commercial digital-signage displays and interactive kiosks where a 500 MHz Cortex-A5 host streams 1080p content from e.MMC over dual-band Wi-Fi modules, while the on-chip LCD controller drives the panel and the touch-screen interface handles multi-touch input. The AES engine secures digital-rights-management keys at the edge, while CAN-FD interfaces with elevator or vending subsystems. Compared with a TV-class display SoC, the ATSAMA5D28A-CU provides industrial-grade longevity (10+ year supply) and Linux customization, making it ideal for retail/kiosk integrators needing field-updatable signage platforms.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMA5D28A-CU – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMA5D28A-CN | ATSAMA5D28A-CNR | ATSAMA5D27C-CU | ATSAMA5D27B-CU | ATSAMA5D26C-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Package | 289-LFBGA (14x14) | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same |
| Core | ARM Cortex-A5 500 MHz | Cortex-A5 500 MHz | Cortex-A5 500 MHz | Cortex-A5 500 MHz | Cortex-A5 500 MHz | Cortex-A5 500 MHz |
| On-chip ROM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB |
| DDR Memory Support | DDR2 / DDR3L / LPDDR2 / LPDDR3 (16-bit + ECC) | Same DDR support | Same DDR support | Same DDR support | Same DDR support | |
| USB Interfaces | USB 2.0 Host + Device + HSIC | Same | Reduced (Host only, no HSIC) | Reduced | Reduced | |
| CAN-FD | Yes | Yes | Yes | No | No | |
| LCD Controller | Yes (touch-screen support) | Yes | Yes | Yes | Yes | |
| Operating Temperature | -40C to +85C (commercial grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | |
| Core Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
Wichtigste Unterscheidungsmerkmale
- Highest peripheral integration in SAMA5D2 family (vs. ATSAMA5D27C-CU)
- Identical silicon, alternate packaging variants (vs. ATSAMA5D28A-CN / ATSAMA5D28A-CNR)
- Rich peripheral set vs SAMA5D2 lower-tier (vs. ATSAMA5D26C-CU)
Designhinweise
Estimated: at 500 MHz CPU load with typical 1.2 V core supply and ~0.4 A core current plus peripheral blocks, the ATSAMA5D28A-CU core power dissipation is approximately 0.48 W. Combined with the I/O and DDR3L I/O power (~0.3-0.5 W) and graphics block, total board power is in the 1.0-1.5 W range. Use a low-quiescent LDO for the always-on rail and a switching regulator for the core to maximize battery endurance in portable designs.
Follow Microchip's SAMA5D2 PCB design guide for DDR routing: keep the 16-bit DDR3L traces impedance-controlled to 50 ohm single-ended / 100 ohm differential within a ±0.5 mm length-match tolerance. Place the 289-LFBGA land pattern with micro-via-in-pad recommended for the BGA break-out, and dedicate an uninterrupted ground plane on layer 2 to suppress simultaneous-switching noise from the 500 MHz core transitions.
Do not operate ATSAMA5D28A-CU outside the -40C to +85C range without verifying against the industrial -CN suffix variant; the -CU suffix is commercial-grade. Ensure QSPI boot mode selection resistors are properly strapped because mismatched boot mode prevents the ROM bootloader from locating the application. Lastly, DDR3L training must complete before the secure-boot chain hands off to Linux or the kernel will hang during console initialization.
Estimated: the 289-LFBGA at 14x14 mm package has a typical theta-JA of approximately 18 C/W with 4-layer JEDEC PCB. At 1.5 W total dissipation, the junction rises ~27 C above ambient; inside an enclosed HMI enclosure this rise can exceed 60 C. Provide copper thermal pad stitching on inner layers and ensure airflow paths are not blocked by display standoffs.
Compliance-Informationen
Per Microchip SAMA5D2 product page the part is RoHS and REACH compliant, lead-free, halogen-free. AEC-Q100 qualification is not applicable for the -CU commercial grade (non-automotive) variant; industrial/extended variants are designated by other suffixes.