ATSAMA5D27B-CNR - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip
MPN： ATSAMA5D27B-CNR ✓ 啟用中ATSAMA5D27B-CNR 概覽
An embedded microprocessor (MPU) is a high-integration computing device that sits one level above microcontrollers (MCUs) in the embedded hierarchy. Where MCUs typically integrate a modest CPU with flash and small RAM for control-oriented tasks, MPUs rely on external DDR memory and external storage, providing the memory bandwidth and CPU performance required for rich operating systems such as Linux. The SAMA5D2 family targets industrial HMI, IoT gateways, and connected appliances that run full OS stacks and need hardware cryptography, multiple connectivity peripherals, and a wide industrial temperature range.
Key features of the ATSAMA5D27B-CNR include ARM Cortex-A5 core with NEON and floating-point unit, hardware AES/SHA/TRNG secure-boot accelerators, dual Ethernet GMAC with IEEE 1588 support, dual CAN-FD interfaces, USB 2.0 HS host/device, a 12-bit ADC, a 24-bit parallel RGB/serial LCD controller with 2D graphics accelerator, and a Peripheral Touch Controller (PTC). The device supports DDR2/DDR3L/LPDDR2/LPDDR3 external memory and QSPI/e.MMC Flash boot, providing flexible storage options for Linux/Android systems.
The MPU is manufactured in a low-power 65 nm CMOS process, with multiple power domains and a simple power management scheme that supports deep low-power states (Backup and ULP modes). The 0.8 mm ball-pitch LFBGA package reduces PCB routing complexity compared with finer-pitch BGA options and supports a 4-layer PCB design with proper stackup.
Typical applications include industrial Human-Machine Interfaces (HMI) with touch screens, IoT edge gateways with Ethernet and CAN connectivity, building automation controllers, medical patient monitors, smart-home concentrators, and Linux-based point-of-sale terminals. The wide operating temperature range of -40C to +105C makes the part well suited for industrial and outdoor installations.
When designing with the ATSAMA5D27B-CNR, follow the Microchip SAMA5D2 hardware design checklist: use at least a 4-layer PCB with a dedicated ground plane, place the LPDDR/DDR3L traces with length-matched routing, provide a low-noise LDO for the PLL supply, and validate boot configuration against the ATSAMA5D2-Boot-Platform documentation before prototype bring-up.
This page consolidates distributor pricing, same-family SAMA5D2 alternatives, and practical design notes beyond the manufacturer datasheet to accelerate MPU selection for embedded Linux designs.
直接替換替代品，適用於 ATSAMA5D27B-CNR — 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： ATSAMA5D27B-CNR （相同外形與佔位） — 差異在於 Package, Operating Temperature, Ethernet, USB, External Memory Support.
ATSAMA5D27B-CU
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D26B-CU
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D24B-CU
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D23B-CNR
✅ 直接替換聯絡詢價
查看資料表 →ATSAMA5D22B-CUR
✅ 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 →ATSAMA5D27B-CNR 最大額定值與電氣特性
| Core Processor | ARM Cortex-A5 |
| Core Count / Width | 1 Core / 32-bit |
| Maximum CPU Frequency | 500 MHz |
| Instruction Set | ARMv7-A with NEON and FPU |
| Internal SRAM | 128 KB |
| External Memory Support | DDR2 / DDR3L / LPDDR2 / LPDDR3 |
| Boot Memory Support | QSPI Flash, e.MMC, NAND, SD card |
| 封裝 | 289-LFBGA (14x14 mm, 0.8 mm ball pitch) |
| 安裝類型 | Surface Mount |
| I/O Voltage | 3.3 V |
| 工作溫度 | -40C to +105C |
| RoHS 狀態 | Compliant |
| MSL 等級 | 3 |
| Packaging | Tape & Reel |
| Series | SAMA5D2 |
ATSAMA5D27B-CNR 289-lfbga (14x14 mm, 0.8 mm ball pitch) 腳位配置指南
ATSAMA5D27B-CNR（289-lfbga (14x14 mm, 0.8 mm ball 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： ATSAMA5D27B-CNR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAMA5D27B-CNR 適用於 6 應用s: Industrial Human-Machine Interface (HMI), IoT Edge Gateway with Ethernet and CAN, Building Automation Controller, Medical Patient Monitor / Diagnostic Display, Smart Home Concentrator / Hub, Linux-Based Point-of-Sale (POS) Terminal.
Industrial Human-Machine Interface (HMI)
The ATSAMA5D27B-CNR's integrated 24-bit LCD controller with 2D graphics accelerator, hardware Peripheral Touch Controller (PTC), and 500 MHz Cortex-A5 core make it ideal for industrial HMI panels running mainline Linux with Qt or LVDS graphical stacks. Designers benefit from a single chip driving 5- to 10-inch TFT displays while still leaving CPU headroom for protocol stacks. The -40C to +105C temperature range and dual CAN-FD also suit factory-floor panels that must communicate with PLCs.
推薦
IoT Edge Gateway with Ethernet and CAN
With dual Gigabit Ethernet MACs (with IEEE 1588 hardware timestamping), dual CAN-FD controllers, USB 2.0 HS, and hardware AES/SHA/TRNG secure-boot, the ATSAMA5D27B-CNR fits industrial IoT gateways that aggregate Modbus TCP, EtherCAT, CAN, and Wi-Fi/Ethernet uplinks. The Cortex-A5 + 128 KB SRAM combination runs lightweight edge analytics or containerized workloads via Buildroot or Yocto, while the crypto accelerator shortens TLS handshakes on the WAN side.
推薦
Building Automation Controller
Building automation controllers demand low power, multiple fieldbus interfaces, and the ability to run secure Linux for BACnet, KNX, or Modbus stacks. The ATSAMA5D27B-CNR's deep-sleep Backup and ULP modes, dual CAN-FD for HVAC and elevator links, plus hardware crypto accelerators make it a strong fit. Industrial temperature operation and the 0.8 mm-pitch 289-LFBGA simplify EMC-compliant 4-layer PCB layouts required for CE-marked controllers.
推薦
Medical Patient Monitor / Diagnostic Display
The ATSAMA5D27B-CNR's 12-bit ADC, deterministic Cortex-A5 core, and LCD graphics path support medical-grade patient monitors that display waveforms and vital signs. The hardware AES/SHA accelerators and TrustZone-style secure-boot provide the cryptographic root-of-trust increasingly required by IEC 62304 / FDA cybersecurity guidance. Operating across -40C to +105C also helps with sterilizable enclosures and outdoor clinical carts.
推薦
Smart Home Concentrator / Hub
Smart-home concentrators aggregate Zigbee, Z-Wave, BLE, and Wi-Fi, then bridge to cloud APIs. The ATSAMA5D27B-CNR's Cortex-A5 + DDR3L controller runs Linux with containers for each radio stack, while the integrated LCD controller with 2D acceleration can drive a small local status display. Hardware cryptography protects over-the-air firmware updates, and the 289-LFBGA fits comfortably on 4-layer consumer-grade PCBs.
推薦
Linux-Based Point-of-Sale (POS) Terminal
POS terminals need cryptographic acceleration for EMV transactions, a graphics-capable LCD controller for operator UI, USB 2.0 for peripherals, and industrial temperature support. The ATSAMA5D27B-CNR integrates AES/SHA for PCI PTS-friendly key handling and offers enough performance for Qt-based touch UIs. The 289-LFBGA package is also easier to assemble than finer-pitch BGA alternatives, improving yield for mid-volume terminal production.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAMA5D27B-CNR — 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 | ATSAMA5D27B-CU | ATSAMA5D26B-CU | ATSAMA5D24B-CU | ATSAMA5D22B-CUR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 289-LFBGA (14x14, 0.8 mm pitch) | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same |
| Core / Architecture | ARM Cortex-A5 32-bit | ARM Cortex-A5 32-bit | ARM Cortex-A5 32-bit | ARM Cortex-A5 32-bit | ARM Cortex-A5 32-bit |
| Internal SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| External Memory | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 |
| Shipping Packaging | Tape & Reel | Tray | Tray | Tray | Tape & Reel |
主要差異化特點
- Hardware crypto + secure boot on-chip (對比ATSAMA5D22B-CUR)
- Higher CPU clock and richer peripherals than SAMA5D26 (對比ATSAMA5D26B-CU)
- Tape-and-Reel packaging for SMT production (對比ATSAMA5D27B-CU)
設計說明
The 289-LFBGA at 0.8 mm ball pitch enables 4-layer PCB designs with a dedicated ground plane, but you still must escape the inner-row balls with vias-in-pad or micro-vias. Follow the Microchip SAMA5D2 hardware design checklist: route DDR3L traces with length matching (data lane +/-25 mil to clock, byte-lane +/-50 mil), keep PLL supply traces short and surrounded by ground, and place decoupling caps as close to each supply ball as the PCB stackup allows. Reference Microchip application note ANxxxx for the full escape pattern.
The SAMA5D2 has a simple power management scheme but multiple supply domains: VDDCORE, VDDBU, VDDANA, VDDSDMMC, VDDHSIC, and VDDUTMI. Use a dedicated 1.0 V LDO with at least 200 mA headroom for VDDCORE, and ensure VDDIO is held in the proper state during Backup/ULP modes. Reference the SAMA5D2 datasheet DS60001476 power-sequencing diagram before choosing LDOs, and verify that wake-up events (RTC, USB, wake-up pins) are configured correctly via the PMC controller in your BSP.
Common SAMA5D2 pitfalls: (1) selecting DDR3L rather than DDR3 for a 1.5 V design (DDR3L is 1.35 V only); (2) omitting the 32.768 kHz crystal on the Slow Clock oscillator, which breaks RTC and deep-sleep timing; (3) leaving boot configuration straps floating, which can lock the part into the wrong boot interface; (4) overlooking the requirement to read the SAMA5D2 errata sheet for silicon revision B before freezing the PCB layout. Estimated: the 289-LFBGA has a typical theta-JA of about 22 C/W on a 4-layer JEDEC test board; verify on your stackup for production thermal analysis.
For the LCD interface, route the parallel RGB data bus with length-matched traces and keep the pixel clock away from sensitive analog inputs (ADC, audio). If using the 2D graphics accelerator (LCDMAX), enable it in the Linux kernel via the atmel-hlcdc driver only after confirming the panel timing in the device tree. For USB HS, the 90-ohm differential pair requires an ESD array (such as the USBLC6-2SC6) near the connector.
合規資訊
RoHS and REACH compliance confirmed via Microchip product page and DigiKey listing. AEC-Q100 not applicable as this is an industrial MPU, not an automotive-grade part.
