ATSAMA5D27B-CN - ARM Cortex-A5 MPU, 500 MHz, 289-LFBGA | Microchip
料号： ATSAMA5D27B-CN ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.62 | $8.62 |
| 10 | $7.92 | $79.20 |
| 100 | $7.21 | $721.00 |
| 500 | $6.49 | $3,245.00 |
| 1,000 | $5.79 | $5,790.00 |
ATSAMA5D27B-CN 概述
An ARM Cortex-A5 based microprocessor is a 32-bit RISC application processor core designed for industrial-grade embedded systems that require Linux or RTOS support. Within the broader device taxonomy, the Cortex-A5 sits in the ARM Cortex-A family of application processors (above Cortex-M microcontrollers), while the SAMA5D2 family in turn belongs to Microchip's MPU portfolio alongside the older AT91SAM9 series. MPUs of this class typically include an MMU, cache, and external memory controller — features that distinguish them from Cortex-M microcontrollers, which lack MMUs and rely on tightly-coupled internal flash. This hierarchy matters when selecting the right class of device: for headless control tasks a Cortex-M MCU is sufficient, but for full Linux support, multimedia playback, and rich GUIs, an MPU like the ATSAMA5D27B-CN is the correct choice.
Key features include up to 500 MHz Cortex-A5 core speed with NEON MPE co-processor and floating-point unit, support for DDR2/DDR3L/LPDDR2/LPDDR3 external SDRAM, and QSPI/e.MMC flash interfaces. Low-power design allows approximately 5 uA in backup mode, while integrated peripherals cover multiple I2C, SPI, UART/USART, QSPI, CAN-FD, USB HSIC, and 10/100 Ethernet MAC. A dedicated 2D graphics engine supports TFT LCD panels up to WXGA resolution with hardware-accelerated overlays.
The device is targeted at industrial gateways, HMI panels, smart-home controllers, IoT edge nodes, and point-of-sale terminals. Integrated peripherals and graphics reduce BOM cost and PCB complexity, while the 0.8 mm ball pitch simplifies layout versus finer-pitch alternatives. The wide operating temperature range and industrial-grade qualification make it suitable for harsh-environment deployments requiring long product lifecycles.
When designing with the ATSAMA5D27B-CN, pay close attention to PCB escape routing on the 0.8 mm pitch LFBGA and provide adequate decoupling. Use Microchip's ATSAMA5D2 software package (Linux BSP, sama5d2-softpack) to accelerate development, and follow the recommended power-sequencing circuit in the manufacturer datasheet for reliable boot.
直接替换替代料： ATSAMA5D27B-CN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAMA5D27B-CN （相同外形与封装尺寸） ——差异在于 External Memory Support, Package, Backup Mode Current, Core Architecture, Ethernet.
快速对比工具——选择替代料号进行并排对比：
ATSAMA5D27B-CU
✅ 直接替换✓ 有现货
$11.85 / 个
查看数据手册 →ATSAMA5D27B-CNR
✅ 直接替换✓ 有现货
$6.4 / 个
查看数据手册 →ATSAMA5D27C-CU
✅ 直接替换✓ 有现货
$11.9 / 个
查看数据手册 →ATSAMA5D27A-CN
✅ 直接替换✓ 有现货
$20.5 / 个
查看数据手册 →ATSAMA5D28B-CU
✅ 直接替换✓ 有现货
$15.8 / 个
查看数据手册 →ATSAMA5D26B-CU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$7.5 / 个
查看数据手册 →ATSAMA5D27B-CN 最大额定值与电气特性
| Core Processor | ARM Cortex-A5 |
| Number of Cores | 1 Core, 32-Bit |
| Maximum CPU Clock | 500 MHz |
| Co-Processor | ARM NEON MPE with FPU |
| 封装 | 289-LFBGA (14x14 mm) |
| Ball Pitch | 0.8 mm |
| External Memory Support | DDR2, DDR3L, LPDDR2, LPDDR3, QSPI, e.MMC |
| Graphics Accelerator | 2D graphics engine with LCD controller |
| Backup Mode Current | approximately 5 uA |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount (LFBGA) |
| USB Interface | USB HSIC |
| Ethernet MAC | 10/100 Mbps |
| CAN Interface | CAN-FD |
| 安装方式 | Surface Mount (SMD) |
ATSAMA5D27B-CN 289-lfbga (14x14 mm) 引脚配置指南
ATSAMA5D27B-CN（289-lfbga (14x14 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATSAMA5D27B-CN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAMA5D27B-CN 适用于 6 应用s: Industrial Human-Machine Interface (HMI) Panels, Smart Home and IoT Edge Gateways, Point-of-Sale (POS) Terminals, Industrial Control and Machine Gateways, Connected Medical Devices, Automotive Infotainment and Telematics.
Industrial Human-Machine Interface (HMI) Panels
The ATSAMA5D27B-CN is purpose-built for industrial HMI panels where a Linux-based GUI must render smoothly on TFT LCDs up to WXGA resolution. Its integrated 2D graphics engine with overlay support accelerates UI composition, while the ARM NEON co-processor handles image scaling, rotation, and alpha blending without CPU intervention. Power dissipation at 500 MHz remains low enough for fanless panel designs, and the 0.8 mm ball pitch of the 289-LFBGA simplifies PCB escape routing versus the 0.5 mm pitch found on competing Cortex-A5 parts. Designers can pair the ATSAMA5D27B-CN with Mainline Linux BSP and Qt or LVGL to ship a full-featured operator interface.
推荐
Smart Home and IoT Edge Gateways
Edge gateways aggregating Zigbee, Thread, BLE, or Wi-Fi sensor data need Linux-grade processing for protocol stacks, TLS encryption, and local analytics. The ATSAMA5D27B-CN's 500 MHz Cortex-A5 core with NEON handles concurrent MQTT, HTTP, and CoAP servers, while its 10/100 Ethernet MAC and USB HSIC interfaces provide flexible WAN/LAN connectivity. The 5 uA backup mode extends battery life in sleep states, and DDR3L/LPDDR3 support keeps power consumption low. Linux mainline support ensures long-term security patching, which is critical for always-on IoT gateways deployed in the field.
推荐
Point-of-Sale (POS) Terminals
POS terminals require rich graphics for touch UIs, cryptographic acceleration for payment security, and multiple I/O interfaces for card readers, printers, and cash drawers. The ATSAMA5D27B-CN integrates a peripheral touch controller, embedded audio subsystem, and multiple UART/USART interfaces, eliminating external chips and reducing BOM cost. Its 2D graphics engine drives capacitive touch displays smoothly, while the 0.8 mm pitch LFBGA keeps PCB layer count manageable. The wide operating temperature range supports deployment in retail environments with variable thermal conditions.
推荐
Industrial Control and Machine Gateways
Industrial controllers and machine gateways benefit from the ATSAMA5D27B-CN's CAN-FD interface for real-time fieldbus communication, plus its QSPI and e.MMC flash interfaces for fast boot and storage. The Cortex-A5 core at 500 MHz runs deterministic real-time control loops alongside Linux networking stacks, making it a bridge between OT and IT networks. Hardware-accelerated cryptography supports secure boot and TLS for OPC-UA or MQTT communication. The extended temperature range and industrial qualification suit factory-floor deployments.
推荐
Connected Medical Devices
Connected medical devices such as patient monitors, infusion pumps, and diagnostic instruments benefit from the ATSAMA5D27B-CN's combination of processing power, peripheral touch controller, and embedded audio subsystem. Linux support enables FDA-compliant software development with long-term security patching, while the 2D graphics engine drives color TFT displays for vital-sign readouts. The ARM NEON co-processor accelerates signal-processing algorithms, and the low-power backup mode extends battery life in portable applications.
推荐
Automotive Infotainment and Telematics
The ATSAMA5D27B-CN is well-suited for non-safety automotive applications such as rear-seat infotainment, telematics control units, and aftermarket head units. Its 2D graphics engine drives WVGA/WXGA displays for navigation and media playback, while CAN-FD interfaces bridge to vehicle networks. The ARM NEON engine accelerates audio codecs for hands-free calling and media playback. Note: For safety-critical ECUs, designers should select AEC-Q100-qualified parts from the SAMA5D2 family rather than the industrial-grade ATSAMA5D27B-CN.
推荐
推荐产品汇总
工程参考数据： ATSAMA5D27B-CN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAMA5D27B-CU | ATSAMA5D27B-CNR | ATSAMA5D27C-CU | ATSAMA5D27A-CN | ATSAMA5D28B-CU | ATSAMA5D26B-CU |
|---|---|---|---|---|---|---|---|
| Package | 289-LFBGA (14x14) | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Processor | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 |
| Maximum CPU Clock | 500 MHz | 500 MHz | 500 MHz | 500 MHz | 500 MHz | 500 MHz | 500 MHz |
| Silicon Revision | B | B | B | C (newer) | A (older) | B (different die) | B (different die) |
| Packaging Form | Tray | Bulk | Tape & Reel | Bulk | Tray | Bulk | Bulk |
| Drop-In Upgrade Path | Baseline | Identical die, packaging variant | Identical die, packaging variant | Yes (errata fixes) | Downgrade (older errata) | Different peripheral set | Lower density variant |
| Co-Processor | NEON MPE + FPU | NEON MPE + FPU | NEON MPE + FPU | NEON MPE + FPU | NEON MPE + FPU | NEON MPE + FPU | NEON MPE + FPU |
| External Memory Support | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 | DDR2/DDR3L/LPDDR2/LPDDR3 |
关键差异点
- Latest B-silicon revision with mature errata history （对比 ATSAMA5D27A-CN)
- Tray packaging for production-friendly assembly （对比 ATSAMA5D27B-CU)
- 0.8 mm ball pitch simplifies PCB escape routing （对比 Typical competing Cortex-A5 BGA parts at 0.5 mm pitch)
- Integrated 2D graphics engine and LCD controller （对比 ATSAMA5D26B-CU)
设计说明
The 289-LFBGA package at 0.8 mm ball pitch is one of the easier BGA densities to escape-route, but still requires careful stack-up planning. Estimated: a 4-layer PCB with 1 oz copper outer layers and 0.5 oz inner layers on FR-4 (low-loss grade recommended above 200 MHz DDR rates) provides reliable BGA breakout. Place 0.1 uF + 1 uF + 10 uF decoupling capacitor groups within 2 mm of every VDD/VBAT pin, and use Microchip's reference layout guide from the SAMA5D2 hardware design package as a starting point.
Follow the SAMA5D2 power-sequencing circuit in the manufacturer datasheet exactly, including the SHDN, NRST, and BMS (Boot Mode Select) timing requirements. Estimated: at 500 MHz with full peripheral activity, VDD_CORE draws approximately 300-400 mA; a switching regulator with at least 80 percent efficiency at this load is recommended over an LDO to limit thermal rise. The 5 uA backup mode requires a sustained VBAT supply — typically a coin cell or supercapacitor — and proper isolation from the main 3.3 V rail.
Do not exceed the maximum DDR clock rate listed in the manufacturer datasheet for the chosen SDRAM type — overshooting DDR3L rates is a common cause of boot instability. Ensure QSPI flash boot images are programmed with the correct header magic (0xAA55A5A5 on SAMA5D2 series) or the device will not boot. Avoid routing DDR traces across power-plane splits, and keep trace lengths matched within the tolerance listed in the datasheet (typically +/- 25 mils for DDR3L data lanes).
合规信息
RoHS compliant per distributor listing. Industrial temperature grade; not AEC-Q100 qualified for automotive safety-critical applications.