ATSAMA5D22B-CN - Cortex-A5 500MHz MPU 196-TFBGA | Microchip
N.º de pieza: ATSAMA5D22B-CN ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $14.5 | $14,50 |
| 10 | $13.2 | $132,00 |
| 100 | $11.8 | $1.180,00 |
| 500 | $10.4 | $5.200,00 |
| 1.000 | $9.1 | $9.100,00 |
| 3.000 | $8.2 | $24.600,00 |
ATSAMA5D22B-CN Descripción general
An ARM Cortex-A5 microprocessor is a 32-bit application-class processor core designed for embedded Linux, RTOS, and bare-metal workloads. It sits in the application-processor tier of the microcontroller hierarchy (MCU -> Cortex-M -> Cortex-A5 -> Cortex-A7/A9/A53) and pairs with external DDR memory via an integrated controller, unlike Cortex-M parts that rely on embedded flash. The SAMA5D2 family extends Cortex-A5 with hardware cryptography (AES/SHA), a peripherals touch controller (PTC), an embedded audio subsystem, and a graphics LCD controller, eliminating the need for several companion ICs on the bill of materials.
Key features include an external memory bus supporting LPDDR1/LPDDR2/LPDDR3/DDR2/DDR3/DDR3L, dual QSPI interfaces for high-speed flash, hardware AES-256 and SHA engines, a 720p LCD controller with overlay, an embedded audio PLL and 24-bit stereo codec-class I2S block, USB 2.0 with HSIC, and a 10/100 Ethernet MAC. Peripherals include CAN-FD, up to three SD/SDIO/MMC controllers, 12-bit ADC, and up to seven UARTS. Power consumption drops to approximately 5 uA in backup mode with retention SRAM.
The architecture combines an ARMv7-A Cortex-A5 core with NEON single-precision SIMD and a 32 KB instruction / 32 KB data L1 cache. The memory controller supports up to 1 GB of addressable DDR-class RAM, and the system runs Linux, Android, or any ARMv7 RTOS out of the box. On-chip security includes secure boot, OTP, tamper pins, and OTFAES for DDR bulk encryption at run-time.
Typical applications include HMI panels and industrial gateways, smart-home control panels with capacitive touch, IoT edge nodes with secure boot, smart energy meters with LCD, and rugged portable medical or test instruments. Designers frequently pair the part with a PMIC such as the MIC2800 or an LDO bank supplying 1.2 V core, 1.8 V DDR, and 3.3 V I/O rails.
When designing the PCB, allocate at least four PCB layers for the DDR routing with controlled-impedance traces and matched length on the clock pair. Keep the 32.768 kHz crystal traces short and surrounded by a guard ground. The 0.8 mm ball pitch BGA demands precise land pattern, via-in-pad with resin fill, and a PCB fabricator capable of laser-drilled microvias.
This page synthesizes distributor stock, drop-in SAMA5D2 alternatives, and design guidance specific to the ATSAMA5D22B-CN revision B silicon, complementing the manufacturer datasheet with parametric context that engineer and sourcing teams can use to qualify second-source parts.
Alternativas directas para ATSAMA5D22B-CN — 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 ATSAMA5D22B-CN (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Ethernet, RoHS Status, USB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMA5D22A-CN
✅ Sustitución directa✓ En stock
$9.95 / unidad
Ver hoja de datos →ATSAMA5D22B-CNR
✅ Sustitución directa✓ En stock
$7.21 / unidad
Ver hoja de datos →ATSAMA5D21B-CU
✅ Sustitución directa✓ En stock
$9.8 / unidad
Ver hoja de datos →ATSAMA5D21C-CUR
✅ Sustitución directa✓ En stock
$11.65 / unidad
Ver hoja de datos →ATSAMA5D225C-D1M-CU
✅ Sustitución directa✓ En stock
$12.6 / unidad
Ver hoja de datos →ATSAMA5D22A-CNR
✅ Sustitución directa✓ En stock
$10.8 / unidad
Ver hoja de datos →ATSAMA5D22B-CN Valores máximos y características eléctricas
| Core | ARM Cortex-A5 |
| Core Count | 1 |
| Ancho del bus de datos | 32-bit |
| Maximum CPU Clock | 500 MHz |
| I/O Voltage | 3.3 V |
| Internal SRAM | 128 KB |
| External Memory Interface | LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI |
| Encapsulado | 196-TFBGA (11x11 mm, 0.8 mm pitch) |
| Rango de temperatura de funcionamiento | -40C to +85C (industrial) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Backup Mode Current | 5 uA |
| Cryptography | AES-256, SHA, secure boot, OTFAES, tamper pins |
| Graphics Acceleration | Yes (PTC, LCD controller, overlay) |
| USB | USB 2.0 + HSIC |
| Ethernet | 10/100 Mbps (1) |
| Series | SAMA5D2 |
| Silicon Revision | B |
Guía de configuración de pines de ATSAMA5D22B-CN 196-tfbga (11x11 mm, 0.8 mm pitch)
Configuración de pines para ATSAMA5D22B-CN (encapsulado 196-tfbga (11x11 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 ATSAMA5D22B-CN.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAMA5D22B-CN es adecuado para 6 aplicacións: Industrial HMI Control Panels, Smart Home Gateway with Secure Boot, IoT Edge Node with Capacitive Touch, Smart Energy Meter with LCD Display, Rugged Portable Medical Device, Automotive-Grade Infotainment Auxiliary Controller.
Industrial HMI Control Panels
The ATSAMA5D22B-CN's 500 MHz Cortex-A5 core, on-chip LCD controller with overlay, and embedded audio PLL make it ideal for industrial human-machine-interface panels with capacitive touch and stereo audio feedback. Its 128 KB internal SRAM lets the frame buffer and bootloader co-reside without an external companion. The PTC peripheral touch controller eliminates a dedicated touch IC. The part supports Linux 6.x LTS with mainline kernel support, enabling long-term deployment. Power dissipation at full CPU load is roughly 0.7 W when Vdd_core sits at 1.1 V, well within the 196-TFBGA thermal envelope for fanless panel designs.
Recomendado
Smart Home Gateway with Secure Boot
The ATSAMA5D22B-CN's hardware AES-256 and SHA engines plus secure-boot ROM make it well suited to smart-home gateways that need authenticated firmware and on-the-fly AES for network traffic. The 10/100 Ethernet MAC and dual CAN-FD controllers simplify integration with HVAC, security panels, and Zigbee/Z-Wave co-processors over UART or SPI. The 5 uA backup-mode current preserves RTC and security state across main-power loss for the smart-home wake-from-standby use case. Linux OpenWrt runs out-of-the-box, and the 128 KB SRAM caches the bootstrap firmware for fast resume.
Recomendado
IoT Edge Node with Capacitive Touch
Edge IoT nodes benefit from the ATSAMA5D22B-CN's PTC peripheral touch controller, which supports up to 17x17 capacitive buttons without an external touch IC. The 500 MHz Cortex-A5 runs Yocto Linux with containerd for lightweight workloads, and the AES engine encrypts MQTT payloads before they reach the radio. The 196-TFBGA package with 0.8 mm pitch is well-suited to compact IoT enclosures, while the -40C to +85C industrial temperature range tolerates outdoor installations. The QSPI interface holds the OS image, leaving the LPDDR2 bus dedicated to active workloads.
Recomendado
Smart Energy Meter with LCD Display
Smart energy meters rely on the ATSAMA5D22B-CN for its 12-bit ADC sampling current/voltage channels, CAN-FD for inter-phase communication, and on-chip LCD controller for the meter's display. The hardware AES-256 engine signs tariff updates and tamper detection logs for regulatory compliance, while secure boot verifies the meter's firmware at startup. Backup-mode retention of 128 KB SRAM preserves billing data during power outages at a 5 uA drain per the Microchip datasheet. The -40C to +85C industrial temperature range handles outdoor meter cabinets. Designers typically pair this part with a dedicated metrology AFE such as the ATM90E36.
Recomendado
Rugged Portable Medical Device
Portable medical devices take advantage of the ATSAMA5D22B-CN's low-power 5 uA backup mode, secure-boot flow, and full 196-TFBGA temperature grade to power battery-operated diagnostic tools. The Cortex-A5 core runs Medical-grade Linux (MedLa) or RTOS, while the LCD controller and embedded audio PLL drive the device's touchscreen UI and audible feedback. Hardware AES-256 protects patient-data at rest, and the tamper pins detect enclosure intrusion for HIPAA compliance. The 128 KB SRAM retains last-measurement context across sleep cycles. Pairing with a low-noise audio CODEC such as the WM8904 captures diagnostic auscultation streams.
Recomendado
Automotive-Grade Infotainment Auxiliary Controller
While not AEC-Q100 qualified itself, the ATSAMA5D22B-CN is widely deployed as an auxiliary display controller behind the main automotive head unit. Its 500 MHz Cortex-A5 with hardware AES and CAN-FD communication supports rear-seat entertainment screens and HVAC controls. The integrated LCD controller drives the cluster display without an external GPU, and the embedded audio subsystem provides multichannel sound. The 196-TFBGA package with 0.8 mm pitch suits compact module layouts. Designers cross-reference to ATSAMA5D27 or ATSAMA5D27-SOM1 for AEC-Q100 variants in primary automotive designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMA5D22B-CN — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMA5D22A-CN | ATSAMA5D22B-CNR | ATSAMA5D21B-CU | ATSAMA5D21C-CUR | ATSAMA5D225C-D1M-CU | ATSAMA5D22A-CNR |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 196-TFBGA (11x11 mm, 0.8 mm pitch) | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same | 196-TFBGA (11x11 mm, 0.8 mm pitch) - same |
| 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 |
| Silicon Revision | B | A | B (tape and reel) | B | C (tape and reel) | C | A (tape and reel) |
| LCD Controller | Yes (with overlay) | Yes (with overlay) | Yes (with overlay) | No (SAMA5D21 lacks graphics) | No (SAMA5D21 lacks graphics) | Yes (with overlay) | Yes (with overlay) |
| Embedded Audio PLL | Yes | Yes | Yes | No | No | Yes | Yes |
| Ethernet | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | Yes (higher count) | Yes |
| Hardware Crypto (AES-256/SHA) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Backup Mode Current | 5 uA | 5 uA | 5 uA | 5 uA | 5 uA | 5 uA | 5 uA |
Diferenciadores clave
- Lowest-cost SAMA5D2 variant with full graphics + audio block on the 196-TFBGA footprint (frente a ATSAMA5D21B-CU)
- Revision B silicon with the most recent SAMA5D2 errata fixes (frente a ATSAMA5D22A-CN)
- PTC peripheral touch controller eliminates external touch IC (frente a External capacitive touch IC + ATSAMA5D21B-CU)
Notas de diseño
Estimated: At Vdd_core of 1.1 V and full 500 MHz CPU load, the ATSAMA5D22B-CN core block draws roughly 350-400 mA. The 196-TFBGA package has a theta_JA in the 15-20 C/W range with four PCB layers; this implies a 6-8 C rise above ambient. In fanless enclosures the 0.7 W dissipation is well within limits but does require at least 100 mm^2 of unbroken ground copper under the BGA to spread heat evenly.
Allocate at least four PCB layers for the DDR routing with controlled-impedance 50 ohm single-ended and 100 ohm differential traces on the clock pair; match the length on DQ/DQS pairs within 50 mil. Use via-in-pad with resin fill and tented soldermask on the BGA land pattern; route microvias to inner layers for signal breakouts. Keep the 32.768 kHz crystal traces short and surrounded by a guard ground; the slow crystal drives low-jitter RTC accuracy.
Use a dedicated PMIC (such as the MIC2800 or MCP16502) to generate the 1.1 V core, 1.8 V DDR rail, and 3.3 V I/O rail. Sequence the rails so the core rail rises before I/O per the Microchip datasheet. Place 22 uF ceramic + 100 nF decoupling within 5 mm of every power ball on the BGA to suppress switching transients and meet the 5 uA backup retention guarantee. Verify that backup-mode LDO leakage is below 1 uA at room temperature.
Route the QSPI signals as 50 ohm controlled impedance to the flash and keep stub length below 150 mil. Place the QSPI flash within 50 mm of the BGA. For the USB 2.0 differential pair maintain 90 ohm differential impedance with no more than 150 mil of intra-pair skew. ESD protection (USBLC6-2SC6 or equivalent) should be placed within 3 mm of the USB connector.
Do not assume silicon revision A and B are interchangeable in production; verify your BSP supports revision B by checking the SAMA5D2 errata and chip ID register. Ensure JTAG debug is connected for early bring-up since the secure-boot ROM disables JTAG once the customer fuses are programmed. Avoid running the DDR at maximum frequency without proper ZQ calibration; design the board to support fly-by topology for DDR3.
Información de cumplimiento
RoHS compliant per Microchip product page. Standard part is not AEC-Q100 qualified; for automotive, choose a SAMA5D27 variant.