ATSAMA5D22B-CU - 500MHz ARM Cortex-A5 MPU, 196-TFBGA | Microchip
MPN： ATSAMA5D22B-CU ✓ 啟用中ATSAMA5D22B-CU 概覽
What is an embedded MPU? An MPU (Microprocessor Unit) integrates a CPU core, memory controller, and a wide range of system peripherals on a single chip, replacing the CPU plus Northbridge/Southbridge of older x86 designs. The SAMA5D2 lineage sits in the Linux-capable MPU tier above microcontroller units (MCUs), competing with NXP i.MX6ULL and TI AM335x in human-machine interface, IoT gateways, and industrial control boards where the workload demands a full operating system rather than bare-metal firmware. The Cortex-A5 core implements the ARMv7-A architecture, which supports virtual memory, symmetric multiprocessing, and the full ARM exception model required by Linux distributions.
Key features of the ATSAMA5D22B-CU include an MMU for full Linux/Android support, ETM/ETB debug tracing, a 16-bit DDR memory controller for LPDDR1/2/3 and DDR2/3/3L, dual QSPI and e.MMC flash interfaces, hardware AES/SHA accelerators, and an integrated LCD controller supporting up to XGA at 60 fps. Peripherals include USB 2.0 high-speed host and device, two HSIC ports, two 10/100 Ethernet MACs with 1588 PTP hardware timestamps, two CAN-FD controllers, and a 12-bit 1 MSPS ADC.
Typical applications cover industrial IoT gateways, smart energy concentrators, building automation panels, medical point-of-care terminals, and human-machine interface panels where the MPU runs Linux and renders LVDS/RGB LCDs. The wide memory compatibility (LPDDR1/2/3 and DDR2/3/3L) gives designers latitude in BOM selection between low-cost DDR3L and high-bandwidth LPDDR3.
When laying out the PCB, allocate a 4-layer minimum stackup with the inner layers as ground and a 3.3 V power plane, follow the package escape guidelines for 0.8 mm pitch BGA, and provide a dedicated 25 MHz crystal with a load capacitor matched to the oscillator stage. Use only RoHS-compliant SAC305 solder and a JEDEC J-STD-020 profile with a peak reflow below 250 C to avoid internal package delamination.
直接替換替代品，適用於 ATSAMA5D22B-CU — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAMA5D22B-CU （相同外形與佔位） — 差異在於 Package, Operating Temperature, CAN, Ethernet, USB.
ATSAMA5D22B-CUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D22A-CNR
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D21B-CU
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D22A-CN
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D225C-D1M-CU
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D22B-CU 最大額定值與電氣特性
| Core Processor | ARM Cortex-A5 (32-bit, single core) |
| Core Architecture | ARMv7-A with TrustZone and NEON |
| Maximum CPU Clock | 500 MHz |
| L1 Instruction Cache | 32 Kbytes |
| L1 Data Cache | 32 Kbytes |
| L2 Cache / SRAM | 128 Kbytes (configurable as internal SRAM) |
| Memory Architecture | MMU (full virtual memory support) |
| External Memory Support | LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L (16-bit) |
| Flash Interfaces | 2x QSPI, e.MMC |
| 封裝 | 196-TFBGA (CSBGA), 11x11 mm, 0.8 mm pitch |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40 C to +85 C (industrial) |
| Supply Voltage (core) | 1.2 V (typ, internal regulator) |
| Supply Voltage (I/O) | 3.3 V (typ) |
| RoHS 狀態 | Compliant |
ATSAMA5D22B-CU 196-tfbga (csbga), 11x11 mm, 0.8 mm pitch 腳位配置指南
ATSAMA5D22B-CU（196-tfbga (csbga), 11x11 mm, 0.8 mm pitch 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAMA5D22B-CU.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAMA5D22B-CU 適用於 6 應用s: Industrial IoT Gateways, Smart Energy Concentrators, Building Automation Panels, Medical Point-of-Care Terminals, Human-Machine Interface (HMI) Controllers, Connected Printers and Peripherals.
Industrial IoT Gateways
The ATSAMA5D22B-CU is a strong fit for industrial IoT gateways where its 500 MHz Cortex-A5 core runs Linux with full MMU support, and its two 10/100 Ethernet MACs with hardware 1588 PTP timestamping back deterministic Ethernet and time-synchronized fieldbus traffic. Its 16-bit LPDDR3/DDR3L controller keeps BOM cost reasonable while a pair of CAN-FD controllers handle modern industrial vehicles and machinery. Running a Buildroot or Yocto image, the gateway can aggregate Modbus/TCP, EtherCAT, MQTT-SN, and OPC-UA traffic concurrently; the integrated LCD controller also drives a local HMI display for commissioning technicians in the field.
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Smart Energy Concentrators
For smart energy and metering concentrator heads, the ATSAMA5D22B-CU delivers the deterministic real-time response of a Cortex-A5 plus the security block (ARM TrustZone, hardware AES/SHA, secure boot) needed for IEC 62443-class meters. Its LPDDR3 controller supports up to 4 Gbytes of RAM for storing minute-level load profiles, while two QSPI buses and e.MMC deliver fast boot and ample room for firmware-over-the-air staging. The 12-bit 1 MSPS ADC and CAN-FD controllers aggregate sensor data from smart meters, while USB 2.0 high-speed with host role provisions local configuration via USB flash during installation.
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Building Automation Panels
Building automation HMI panels benefit from the ATSAMA5D22B-CU's integrated TFT LCD controller (up to XGA at 60 fps), which drives a 4-7 inch capacitive touch display without an external graphics controller. The two HSIC ports and USB 2.0 high-speed host expose the panel to RS-485 converters, Modbus dongles, and KNX/TP bridges over the fieldbus, while two CAN-FD controllers handle BACnet and elevator/lift networks. Running a Yocto Linux image with Qt/EGL, design teams can deliver rich touch-based interfaces with the same footprint as a Cortex-A9 panel at lower BOM cost.
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Medical Point-of-Care Terminals
The ATSAMA5D22B-CU is well-suited to medical point-of-care terminals requiring IEC 60601-1 isolation and stringent EMC margins. The Cortex-A5 core runs Linux with secure boot and hardware AES, the LCD controller drives the medical display, and the Ethernet MACs implement secured network paths to hospital EMR systems. Its industrial -40 C to +85 C junction rating supports operation in ambulances and field clinics, while LPDDR2/3 with hardware scrambling and TrustZone enables encrypted patient data buffers. The low typical-power profile (around 200 mW at full CPU clock) eases battery-inverter design for portable carts.
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Human-Machine Interface (HMI) Controllers
Industrial HMI controllers are a primary target for the ATSAMA5D22B-CU. The integrated TFT LCD controller pairs with the LCD-TFT peripheral to drive XGA/WVGA panels directly, while the SD/MMC host plus e.MMC store animated Qt/QML UX assets. Hardware crypto and TrustZone protect configuration and recipes, while the two CAN-FD and two 10/100 Ethernet MACs deliver deterministic networking. Designers benefit from the smaller BGA and lower cost than the SAMA5D27 dual-core parts without sacrificing the rich Linux ecosystem. Touch-panel interfaces and audio playback are handled by I2S and SSC peripherals.
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Connected Printers and Peripherals
Connected office peripherals such as networked printers, label applicators, and document scanners benefit from the ATSAMA5D22B-CU's mix of Cortex-A5 compute, large DDR memory bandwidth, and high-speed USB 2.0 host. The integrated LCD controller drives the operator panel, while two Ethernet MACs support LAN and dedicated service ports. Secure boot via TrustZone plus AES/SHA accelerators is suitable for protected firmware storage per modern enterprise IT policies. The 196-TFBGA footprint (11x11 mm) keeps the SoM small enough for compact printer controller boards.
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推薦產品摘要
工程參考資料，適用於 ATSAMA5D22B-CU — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAMA5D22B-CUR | ATSAMA5D22A-CNR | ATSAMA5D21B-CU | ATSAMA5D22A-CN | ATSAMA5D225C-D1M-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 196-TFBGA (11x11 mm) | 196-TFBGA (11x11 mm) | 196-TFBGA (11x11 mm) | 196-TFBGA (11x11 mm) | 196-TFBGA (11x11 mm) | 196-TFBGA (11x11 mm) |
| Core | ARM Cortex-A5 (1 core) | ARM Cortex-A5 (1 core) | ARM Cortex-A5 (1 core) | ARM Cortex-A5 (1 core) | ARM Cortex-A5 (1 core) | ARM Cortex-A5 (1 core) |
| Maximum Frequency | 500 MHz | 500 MHz | 500 MHz | 500 MHz | 500 MHz | 500 MHz |
| L2 Cache / SRAM | 128 Kbytes | 128 Kbytes | 128 Kbytes | 128 Kbytes | 128 Kbytes | 128 Kbytes |
| DDR Memory Support | LPDDR1/2/3, DDR2/3/3L 16-bit | LPDDR1/2/3, DDR2/3/3L 16-bit | LPDDR1/2/3, DDR2/3/3L 16-bit | LPDDR1/2/3, DDR2/3/3L 16-bit | LPDDR1/2/3, DDR2/3/3L 16-bit | LPDDR1/2/3, DDR2/3/3L 16-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Lifecycle Status | Active | Active | Active | Active | Obsolete (per ICD) | Active |
主要差異化特點
- Single-drop-in BGA footprint with multiple silicon revisions (對比ATSAMA5D22A-CNR)
- Lower power compared to dual-core SAMA5D27 (對比ATSAMA5D27C-D1G-CU)
- Wide external memory compatibility (對比ATSAMA5D21B-CU)
設計說明
Estimated: For the 196-TFBGA with 0.8 mm pitch, plan a 4-layer PCB minimum with ground and a 3.3 V power plane on layers 2 and 3. Inner microvia stackups (laser-drilled) help escape the inner-row BGA balls; outer traces should follow the Microchip-recommended ball escape diagram in the SAMA5D2 hardware design package. Keep high-speed DDR traces length-matched within 25 mil tolerance and pair them with proper termination resistors on the DDR signals.
The SAMA5D2 integrates a power management controller that derives core (1.2 V) from the 3.3 V supply; bypass per the reference design uses a 22 uF + 100 nF + 10 nF capacitor ladder on each rail. Place the buck/linear regulators' sense lines as close to the BGA balls as possible and avoid sharing analog/digital ground returns under the package. Add TVS diodes on the USB and HSIC lines to meet industrial surge requirements (IEC 61000-4-2).
Estimated: at full CPU clock and DDR3L activity, the typical power consumption is around 200 mW; however, in fixed-aperture enclosures plan for up to 1 W peak. Use a copper-pour thermal relief under the BGA thermal pad connected to a 4-layer ground stack, and consider a small heatsink when junction temperatures exceed 70 C ambient, especially in sealed enclosures.
Do not skip the 25 MHz external crystal load-capacitor calculation; wrong values shift the DDR PLL and the GMAC 1588 PTP reference, breaking network synchronisation. Always validate boot-mode strap resistors at J20xx/J21xx against the SAMA5D2 boot configuration table before laying out; otherwise the device may default to a UART-only boot and brick in production. Plan for the secure-boot register programming at the factory because TrustZone fuses cannot be reverted in the field.
Estimated: Place decoupling capacitors on the BGA-side of every ball-to-trace via, targeting 0.1 uF high-frequency parts within 100 mils of the balls. Use a continuous reference plane for all DDR traces and avoid crossing plane splits to prevent return-path discontinuities. Route the two 10/100 Ethernet MDI pairs as 100-ohm differential with ground-coplanar reference; route length matching within 5 mil. The LCD parallel interface traces should be kept short with series damping resistors at the driver.
合規資訊
RoHS and REACH compliance per Microchip product page. AEC-Q100 is not applicable (MPU without automotive qualification status). Conflict-mineral statement available from Microchip corporate compliance.
