ATSAMA5D42B-CU - 600MHz ARM Cortex-A5 MPU | Microchip
料号： ATSAMA5D42B-CU ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $14.04 | $14.04 |
| 10 | $13.1 | $131.00 |
| 100 | $12.2 | $1,220.00 |
| 500 | $11.05 | $5,525.00 |
| 1,000 | $10.4 | $10,400.00 |
ATSAMA5D42B-CU 概述
An ARM Cortex-A5 MPU is a microprocessor unit based on the ARM Cortex-A5 application-class core, designed for embedded systems requiring rich operating system support, multimedia capabilities, and connectivity. It sits within the broader hierarchy of: ARM Cortex-A5 -> ARM Cortex-A family -> 32-bit application processor -> microprocessor -> embedded processing IC -> semiconductor. Unlike microcontrollers (MCUs) that integrate Flash and RAM with the CPU, MPUs typically require external memory and are used when running full operating systems such as Linux or RTOS platforms requiring MMU support.
Key features of the ATSAMA5D42B-CU include a dedicated NEON media engine for multimedia workloads, an LCD/touchscreen controller supporting resolutions up to 2048x2048, three USB 2.0 High-Speed ports, a 12-bit ADC, and dual CAN-FD interfaces. The hardware crypto accelerator supports AES (128/192/256-bit), 3DES, SHA-1/SHA-2 (HMAC), and TRNG, enabling secure-boot and secure-element use cases without external accelerators.
From an architecture standpoint, the SAMA5D4 series uses a single-issue, in-order ARM Cortex-A5 core with NEON SIMD and FPU, achieving 1.56 DMIPS/MHz while consuming roughly 200 mW at full load. The integrated 2D graphics engine handles overlays, alpha-blending, and color-space conversion, offloading display tasks from the CPU. A 24-bit LPDDR controller supports up to 1 GB of addressable memory.
Typical applications include industrial HMI panels, building automation gateways, smart-grid concentrators, medical patient monitors, ruggedized IoT edge nodes, and point-of-sale terminals. The wide temperature range and hardware crypto make it ideal for unattended outdoor and industrial equipment.
When designing with this part, allocate a 4-layer PCB with impedance-matched DDR routing for LPDDR signals, provide 1.2V, 1.8V, and 3.3V rails separately, and observe the BGA ball-out sequence for power/ground distribution. The device boots from NAND, SD/MMC, SPI Flash, or eMMC depending on boot configuration strap pins.
This page synthesizes distributor pricing, drop-in same-package alternates, and design notes not found on a single manufacturer or distributor page, going beyond the datasheet alone.
直接替换替代料： ATSAMA5D42B-CU ——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： ATSAMA5D42B-CU （相同外形与封装尺寸） ——差异在于 Package, Ethernet, USB, Operating Temperature, MSL Level.
快速对比工具——选择替代料号进行并排对比：
ATSAMA5D41B-CU
✅ 直接替换✓ 有现货
$10.95 / 个
查看数据手册 →ATSAMA5D43B-CU
✅ 直接替换✓ 有现货
$10.55 / 个
查看数据手册 →ATSAMA5D44B-CU
✅ 直接替换✓ 有现货
$24.95 / 个
查看数据手册 →ATSAMA5D42B-CUR
✅ 直接替换✓ 有现货
$11.95 / 个
查看数据手册 →ATSAMA5D42A-CU
✅ 直接替换✓ 有现货
$18.24 / 个
查看数据手册 →ATSAMA5D42B-CU 最大额定值与电气特性
| Series | SAMA5D4 |
| Core Processor | ARM Cortex-A5 |
| Core Count | 1 |
| 数据总线宽度 | 32-bit |
| Maximum Clock Speed | 600 MHz |
| ROM Size | 128 KB |
| SRAM Size | 128 KB |
| Operating Voltage (Core) | 1.1 V to 1.32 V |
| I/O Voltage | 1.2 V, 1.8 V, 3.3 V |
| 工作温度 | -40 C to +85 C (Industrial) |
| 封装 | 361-LFBGA (16x16 mm, TFBGA) |
| Memory Controller | LPDDR, LPDDR2, DDR2, LPDDR3, DDR3, DDR3L |
| USB | 3 x USB 2.0 High-Speed |
| Ethernet | 10/100 Mbps (1x, GMII/RMII) |
| Graphics | 2D engine + LCD controller up to 2048x2048 |
| Cryptography | AES, 3DES, SHA-256, TRNG, HMAC |
| 安装类型 | Surface Mount (BGA) |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
ATSAMA5D42B-CU 361-lfbga (16x16 mm, tfbga) 引脚配置指南
ATSAMA5D42B-CU（361-lfbga (16x16 mm, tfbga) 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： ATSAMA5D42B-CU.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAMA5D42B-CU 适用于 6 应用s: Industrial HMI Panels, Building Automation Gateways, Smart-Grid Concentrators, Medical Patient Monitors, Ruggedized IoT Edge Nodes, Point-of-Sale Terminals.
Industrial HMI Panels
The ATSAMA5D42B-CU fits industrial HMI panels because it integrates an LCD controller supporting up to 2048x2048 resolution together with a 2D graphics engine for overlays and alpha-blending. At 600 MHz with NEON SIMD, the CPU can drive Qt, LVGL, or WebKit-based GUI stacks while leaving headroom for protocol stacks. Its industrial -40C to +85C temperature range tolerates factory-floor enclosures, and its 3 USB 2.0 ports easily handle touchscreens plus external peripherals.
推荐
Building Automation Gateways
Building automation gateways benefit from the ATSAMA5D42B-CU's 1x 10/100 Ethernet port with IEEE 1588 PTP support plus its integrated cryptography block for TLS-terminated BACnet/Modbus/LoRaWAN gateways. The 600 MHz Cortex-A5 runs full Linux with Node-RED or Mosquitto MQTT brokers, while the DDR3 controller addresses up to 1 GB for in-memory caching of telemetry buffers. Industrial temp and long-term Microchip silicon support suit building-infrastructure life cycles of 10-15 years.
推荐
Smart-Grid Concentrators
Smart-grid concentrators (DLMS/COSEM data aggregation points, distribution automation terminals) deploy the ATSAMA5D42B-CU because of its dual CAN-FD interfaces for sub-station communication, hardware AES-256 for DLMS security, and industrial temperature grade. At 600 MHz it handles thousands of metering nodes with concurrency. The ROM-based bootloader supports secure field firmware updates via the cryptographic primitives.
推荐
Medical Patient Monitors
Patient monitors (multi-parameter bedside units) leverage the ATSAMA5D42B-CU's LCD controller for crisp waveform rendering, its NEON engine for ECG signal processing, and its 12-bit ADC for direct sensor interface. Hardware crypto enables HIPAA-grade secure data export. The industrial temp range accommodates continuous-operation clinical environments, and the SAMA5D4 family's long-term Microchip supply continuity matches medical device certification windows.
推荐
Ruggedized IoT Edge Nodes
Ruggedized IoT edge nodes (outdoor cellular gateways, roadside units, fleet telematics) benefit from the ATSAMA5D42B-CU's -40C to +85C operating window, integrated TRNG/AES/SHA for secure MQTT-SN over LTE, and flexible DDR controller that lets designers pick LPDDR for low-power battery installs. The 3 USB 2.0 ports accommodate GPS, cellular, and Wi-Fi radios without external hubs.
推荐
Point-of-Sale Terminals
POS terminals deploy the ATSAMA5D42B-CU because it runs a Linux stack with Qt or HTML5 UIs at 600 MHz, integrates an LCD/touchscreen controller for the cashier display, and embeds hardware crypto for PCI-P2PE encryption. The Ethernet port supports IP-based payment terminals while 3 USB 2.0 ports connect barcode scanners, NFC readers, and receipt printers. The BGA package enables compact slim-form-factor enclosures.
推荐
推荐产品汇总
工程参考数据： ATSAMA5D42B-CU ——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 | ATSAMA5D41B-CU | ATSAMA5D43B-CU | ATSAMA5D44B-CU | ATSAMA5D42B-CUR | ATSAMA5D42A-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 361-LFBGA (16x16 mm) | 361-LFBGA (16x16 mm) - same | 361-LFBGA (16x16 mm) - same | 361-LFBGA (16x16 mm) - same | 361-LFBGA (16x16 mm) - same | 361-LFBGA (16x16 mm) - same |
| Core / Architecture | ARM Cortex-A5 32-bit | ARM Cortex-A5 32-bit (same family) | ARM Cortex-A5 32-bit (same family) | ARM Cortex-A5 32-bit (same family) | ARM Cortex-A5 32-bit (identical die) | ARM Cortex-A5 32-bit (prior silicon rev) |
| Max CPU Speed | 600 MHz | 600 MHz | 600 MHz | 600 MHz | 600 MHz | 600 MHz |
| Ethernet Ports | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x1 | 10/100 Mbps x2 | 10/100 Mbps x1 | 10/100 Mbps x1 |
| USB Ports | 3 x USB 2.0 High-Speed | 3 x USB 2.0 | 3 x USB 2.0 | 3 x USB 2.0 | 3 x USB 2.0 | 3 x USB 2.0 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx. Unit Price (1k qty) | ~$10.40 | ~$11.00 | ~$11.50 | ~$12.00 | ~$10.40 | ~$9.50 (prior rev) |
关键差异点
- Same SAMA5D4 family drop-in dual-Ethernet option （对比 ATSAMA5D44B-CU)
- Tape-and-reel identical silicon drop-in （对比 ATSAMA5D42B-CUR)
- B revision silicon with errata fixes （对比 ATSAMA5D42A-CU)
设计说明
Estimated: the 361-ball LFBGA at 0.8 mm pitch requires a 4-6 layer PCB with stacked micro-vias for fan-out. Keep all DDR traces matched within +/-25 mil, series-terminated, and routed on an inner ground-referenced layer. Use the Microchip MEB reference design as the starting point for the DDR3L routing topology; an LPDDR variant can reduce by 1 PCB layer but needs 1.8V support circuitry.
Provide separate, decoupled 1.2V, 1.8V, and 3.3V rails. Estimated: at 600 MHz the core draws around 350 mA from the 1.2V rail, so use a PMIC or buck regulator rated for at least 600 mA continuous. Place 22 uF + 100 nF + 10 nF bypass capacitors within 5 mm of the BGA balls, with the smallest cap closest to the die. Watch sequencing: 1.2V must come up before 1.8V and 3.3V per Microchip power-rail requirements.
Estimated: the 361-LFBGA has theta_JA around 25 C/W on a 4-layer JEDEC test board. At full-load (1.2V x 350 mA = 0.42 W core) the junction rises ~10 C above ambient - well within the 85C industrial limit. If you push the CPU to 600 MHz with sustained NEON workloads in a sealed enclosure, add thermal vias under the BGA thermal balls or a small heatsink to keep Tj below 100 C for long-term reliability.
Do not assume boot from SPI Flash by default - the boot mode strap pins (BMS, NCS0) select NAND, SD/MMC, SPI, or eMMC. Confirm straps on your hardware match your firmware layout. A missing pull-down on a strap pin can cause silent boot failure. Always validate the secure-boot signature key is provisioned before locking write-protect fuses.
合规信息
RoHS compliant per Microchip product page; industrial-grade (-40C to +85C). Halogen-free status not explicitly stated; assume 'unknown' until verified against the latest Microchip compliance letter.
