ATSAMA5D21A-CUR - 500MHz Cortex-A5 MPU, 196-TFBGA | Microchip
Teilenummer: ATSAMA5D21A-CUR ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $17.2 | $172,00 |
| 100 | $15.85 | $1.585,00 |
| 500 | $14.4 | $7.200,00 |
| 1.000 | $13.1 | $13.100,00 |
ATSAMA5D21A-CUR Übersicht
An Arm Cortex-A5 MPU is a microprocessor unit based on the ARMv7-A architecture that integrates a CPU core, memory controllers, and rich peripherals into a single package. In the embedded hierarchy it sits above microcontrollers (MCUs) and is used when applications need a full operating system such as Linux, high-throughput peripherals like Gigabit Ethernet, or large DDR memories. The SAMA5D2 family specifically targets low-power connected IoT gateways, HMI panels, and industrial control.
Key features include the 500 MHz Cortex-A5 core with 32 KB each of L1 instruction and data cache plus 128 KB L2 SRAM, single-precision FPU, hardware video decoder/encoder accelerators, a 12-bit ADC, and a comprehensive peripheral set including Gigabit Ethernet, two CAN-FD controllers, USB host/device, and multiple UART/SPI/I2C interfaces. The 196-ball TFBGA package is a fine-pitch surface-mount BGA with thermal pad suitable for industrial PCB designs.
Architecturally, the device uses ARM's Cortex-A5 core paired with a multi-layer AHB/APB bus matrix and dedicated DMA engines. It supports secure boot via on-chip OTP and hardware crypto accelerators (AES, SHA, TRNG), enabling tamper-resistant firmware deployment. The integration of analog and digital peripherals reduces external component count in industrial designs.
Typical applications include industrial IoT gateways, building automation controllers, human-machine interface (HMI) panels, smart energy concentrators, and connected medical devices. The wide industrial temperature range makes it suitable for outdoor or factory-floor deployments.
When designing with this MPU, pay close attention to power-rail sequencing and decoupling. Place at least eight 100 nF decoupling capacitors near the BGA balls and provide a 4-layer PCB with continuous ground plane for DDR signal integrity. Validate boot configuration against the SAMA5D2 hardware design checklist.
This page synthesizes distributor stock levels, TFBGA-196 same-family alternatives, and practical PCB design notes beyond the manufacturer datasheet to accelerate your engineering decisions.
Drop-in-Alternativen für ATSAMA5D21A-CUR – 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 ATSAMA5D21A-CUR (gleiche Bauform und Footprint) – abweichend in Package, Operating Temperature, Mounting Type, Backup Mode Current, Ethernet.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMA5D21B-CUR
✅ Drop-In✓ Auf Lager
$8.56 / Stück
Datenblatt ansehen →ATSAMA5D21C-CUR
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$11.65 / Stück
Datenblatt ansehen →ATSAMA5D22A-CUR
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$6.2 / Stück
Datenblatt ansehen →ATSAMA5D28A-CUR
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$10.8 / Stück
Datenblatt ansehen →ATSAMA5D27A-CUR
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$12.95 / Stück
Datenblatt ansehen →ATSAMA5D21A-CUR Grenzwerte & elektrische Eigenschaften
| Core Architecture | Arm Cortex-A5 (ARMv7-A) |
| Maximum CPU Clock | 500 MHz |
| FPU | Single-precision hardware floating-point unit |
| L1 Cache | 32 KB instruction + 32 KB data |
| Internal SRAM | 128 KB |
| External Memory | DDR2/DDR3L/LPDDR2/LPDDR3, QSPI, e.MMC |
| Gehäuse | 196-ball TFBGA |
| Temperature Grade | Industrial (-40C to +85C) |
| Montageart | Surface Mount (BGA) |
| Ethernet | Gigabit Ethernet MAC |
| USB | USB 2.0 Host and Device |
| CAN | 2x CAN-FD controllers |
| ADC | 12-bit ADC |
| Crypto Accelerators | AES, SHA, TRNG |
| RoHS-Status | Compliant |
ATSAMA5D21A-CUR 196-ball tfbga Pinbelegungsleitfaden
Pinbelegung für ATSAMA5D21A-CUR (196-ball tfbga-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 ATSAMA5D21A-CUR.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ATSAMA5D21A-CUR ist geeignet für 6 Anwendungs: Industrial IoT Gateway, Building Automation Controller, Human-Machine Interface (HMI) Panel, Smart Energy Concentrator, Connected Medical Device Gateway, Edge Vision / Camera Sensor Hub.
Industrial IoT Gateway
The ATSAMA5D21A-CUR is well suited for industrial IoT gateways thanks to its 500 MHz Cortex-A5 with FPU and integrated Gigabit Ethernet MAC. The dual CAN-FD controllers let it aggregate data from factory-floor sensors while Linux4SAM provides the rich networking stack needed for MQTT, OPC-UA, and TLS. With 128 KB on-chip SRAM and an industrial -40C to +85C rating, the MPU handles protocol conversion and edge analytics without external memory pressure, dissipating typically 1 W under full load.
Empfohlen
Building Automation Controller
Building automation controllers benefit from the ATSAMA5D21A-CUR's combination of low-power Cortex-A5 with rich connectivity peripherals. Two CAN-FD buses aggregate HVAC and elevator sensors while Ethernet and Wi-Fi link to the building management system. The hardware AES/SHA accelerators secure BACnet/IP traffic. Industrial temperature rating supports rooftop or basement mounting, and the 196-ball TFBGA integrates into compact DIN-rail designs running embedded Linux distributions.
Empfohlen
Human-Machine Interface (HMI) Panel
The ATSAMA5D21A-CUR drives cost-optimized HMI panels where the integrated LCD controller (on the D22A sibling) can be used, and the D21A itself powers HMI logic with 500 MHz performance. The FPU accelerates Qt/embedded rendering while the DDR3L controller supports rich framebuffers. Industrial temperature operation is mandatory for factory-floor panels. Estimated system power is below 3 W for a 7-inch touchscreen HMI, enabling fanless enclosures.
Empfohlen
Smart Energy Concentrator
Smart energy concentrators aggregate meter data from multiple households or substations, a workload that fits the ATSAMA5D21A-CUR's profile. The hardware crypto accelerators authenticate DLMS/COSEM or M-Bus traffic while the dual CAN-FD buses interface with local submetering. The 128 KB SRAM plus DDR3L support large mesh routing tables, and the -40C to +85C range handles outdoor cabinet mounting. Estimated power budget is under 2 W in continuous operation.
Empfohlen
Connected Medical Device Gateway
Connected medical device gateways use the ATSAMA5D21A-CUR for HIPAA-compliant data aggregation. The hardware AES and TRNG support encrypted HL7/FHIR transmission over Ethernet. The Cortex-A5 with FPU runs real-time vital-sign analysis locally before cloud upload. Industrial temperature rating meets IEC 60601-1 environmental requirements for clinical environments, and the BGA package suits compact medical cart designs requiring long-term Microchip silicon availability.
Empfohlen
Edge Vision / Camera Sensor Hub
The ATSAMA5D21A-CUR functions as a sensor hub for low-resolution edge-vision nodes in industrial inspection. The Cortex-A5 with FPU runs lightweight CNN inference at 5-10 FPS for presence detection, while the camera interface and 12-bit ADC handle image sensor data. Linux4SAM enables easy deployment of ONNX-runtime models. Industrial temperature operation and Microchip's long-term supply program suit 10+ year industrial product lifecycles.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMA5D21A-CUR – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMA5D21B-CUR | ATSAMA5D21C-CUR | ATSAMA5D22A-CUR | ATSAMA5D27A-CUR | ATSAMA5D28A-CUR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 196-ball TFBGA | 196-ball TFBGA - same | 196-ball TFBGA - same | 196-ball TFBGA - same | 196-ball TFBGA - same | 196-ball TFBGA - same |
| Core / Clock | 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 |
| LCD Controller | No (D21A base) | No | No | Yes | Yes | Yes |
| CAN-FD Controllers | 2 | 2 | 2 | 2 | 2 (full feature set) | 2 |
| Gigabit Ethernet | Yes | Yes | Yes | Yes | Yes | Yes |
| Hardware Crypto | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG (enhanced) | AES, SHA, TRNG | AES, SHA, TRNG | AES, SHA, TRNG |
| Silicon Revision | A | B | C | A | A | A |
Wichtigste Unterscheidungsmerkmale
- Same-family drop-in silicon revision (vs. ATSAMA5D21B-CUR)
- Adds LCD controller without changing footprint (vs. ATSAMA5D22A-CUR)
- Lower power than D31x/D4x family members (vs. ATSAMA5D42A-CUR)
Designhinweise
The ATSAMA5D21A-CUR requires multiple voltage rails (typically 1.2 V core, 1.8 V DDR, 3.3 V I/O). Sequence the rails according to the SAMA5D2 hardware design guide - VDDCORE must rise before or simultaneously with VDDIO. Estimated: with VIN=3.3 V at full 500 MHz load the MPU draws approximately 300-400 mA from the 1.2 V core rail, requiring a DC-DC converter rated for at least 1 A continuous.
Use a 4-layer PCB minimum with a continuous ground plane under the 196-ball TFBGA. Place at least eight 100 nF X7R decoupling capacitors within 2 mm of the BGA balls, plus a single 10 uF bulk capacitor per rail. Match DDR traces to within 0.1 mm and use 50 ohm controlled impedance. The exposed thermal pad must be soldered to a 5 mm x 5 mm copper pad with thermal vias to the inner plane.
Do not skip the boot-mode strap configuration on the BMS pin - the ATSAMA5D21A-CUR reads boot options at reset and incorrect strapping will prevent QSPI/DDR access. Ensure the 32.768 kHz crystal load capacitance matches the datasheet recommendation (12 pF typical). Estimated: oscillator start-up time is below 1 second with correct loading but can exceed 5 seconds with mismatched capacitance.
Compliance-Informationen
Industrial-grade MPU. RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose ATSAMA5D2x-CNR variants only if automotive is required (not always available in 196-ball TFBGA).
