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ATSAMA5D27B-CN - ARM Cortex-A5 MPU, 500 MHz, 289-LFBGA | Microchip
ATSAMA5D27B-CN

ATSAMA5D27B-CN - ARM Cortex-A5 MPU, 500 MHz, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D27B-CN is a high-performance, low-power ARM Cortex-A5 32-bit microprocessor (MPU) running up to 500 MHz, housed in a 289-ball LFBGA (14x14 mm) package with 0.8 mm ball pitch. As part of the SAMA5D2 series, it integrates an ARM NEON SIMD/FPU co-processor for multimedia acceleration, a peripheral touch controller, an embedded audio subsystem, and a 2D graphics accelerator for human-machine interface (HMI) designs. 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.

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ATSAMA5D27B-CNR - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip
ATSAMA5D27B-CNR

ATSAMA5D27B-CNR - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D27B-CNR is an ARM Cortex-A5 32-bit embedded microprocessor (MPU) from the SAMA5D2 family, running up to 500 MHz with 128 KB of internal SRAM, packed in a 289-ball LFBGA (14x14 mm, 0.8 mm ball pitch) and shipped in Tape & Reel packaging. 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.

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ATSAMA5D27B-CU - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip
ATSAMA5D27B-CU

ATSAMA5D27B-CU - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D27B-CU is a high-performance, low-power Arm Cortex-A5 microprocessor (MPU) running up to 500 MHz, delivered in a 289-pin LFBGA (14x14 mm, 0.8 mm ball pitch) package. It integrates peripherals for the SAMA5D2 family, including a TFT LCD controller, 2D graphics engine, embedded audio subsystem, peripheral touch controller, CAN-FD, Gigabit Ethernet MAC, and a 720p hardware video decoder (H.264), making it a strong fit for HMIs, edge gateways, and industrial graphics terminals. An MPU (microprocessor unit) is a class of system-on-chip that integrates a full applications-grade CPU with memory controllers and rich I/O. The Cortex-A5 generation is a 32-bit superscalar core that runs the Linux kernel and other rich operating systems, sitting above microcontrollers (MCUs) in capability and above DSPs in generality. The SAMA5D2 series in particular targets low-power, fanless embedded designs where an MPU must run from constrained supplies or backup batteries. Key features include 32-bit DDR2/DDR3L/LPDDR2/LPDDR3 memory controller, 16-bit SLC NAND controller with ECC, dual CAN-FD controllers, 10/100/1000 Ethernet MAC with 1588 PTP timestamps, three HS USB ports, multiple I2S/TWI/SPI/UART, secure boot, hardware cryptographic accelerators (AES, SHA, TRNG), and an AES/secure boot chain. Operation voltage is typically 1.2 V core with 1.8 V/3.3 V I/O, and total system power in backup mode can drop to about 5 µA. The architecture pairs the Cortex-A5 core with a 32 KB I-cache and 32 KB D-cache plus NEON and FPU (where present), an MMU for Linux, and a low-latency bus matrix that keeps the LCD and Ethernet streams fed under sustained interrupt load. This combination is tuned for low BOM cost designs, since most peripherals needed for a connected display product are integrated. Typical applications include industrial HMI panels, building automation gateways, smart-grid concentrators, vending and ticketing terminals, medical point-of-care displays, and rugged portable instruments with LTE connectivity. The compact 14x14 mm BGA footprint enables compact carrier boards, while the 0.8 mm ball pitch reduces PCB layer count compared with finer-pitch MPUs. A key design consideration is the memory topology and power sequencing: VDDANA, VDDBU, VDDPLL, VDDOSC, and the DDR rail must be brought up in the order described in the SAMA5D2 datasheet, otherwise the boot ROM may not initialize the DRAM reliably. Use a sequencing supervisor or the bundled SAM software package reference design. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and layout/thermal considerations not repeated in the manufacturer's datasheet.

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ATSAMA5D27B-CUR - 500MHz ARM Cortex-A5 MPU, 289-LFBGA | Microchip
ATSAMA5D27B-CUR

ATSAMA5D27B-CUR - 500MHz ARM Cortex-A5 MPU, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D27B-CUR is a high-performance, low-power 32-bit ARM Cortex-A5 embedded microprocessor (MPU) running up to 500 MHz, housed in a 289-pin LFBGA (14x14 mm) package supplied on tape and reel. The device integrates 128 KB of SRAM, 160 KB of ROM, and a sophisticated memory controller supporting DDR2/DDR3L/LPDDR2/LPDDR3 external DRAM plus QSPI and e.MMC flash interfaces. It operates from a typical 1.2 V core supply and targets industrial, automotive, and connected-embedded designs requiring deterministic Linux performance. What is an MPU? An embedded microprocessor unit (MPU) is a CPU-centric system-on-chip that requires external memory and peripherals, in contrast to a microcontroller (MCU) which integrates flash and I/O on-die. MPUs typically run higher-level operating systems (Linux, Android, RTOS) at hundreds of MHz to GHz speeds, and occupy the tier above microcontrollers in the embedded hierarchy: MPU -> microprocessor -> SoC -> integrated circuit -> semiconductor. The SAMA5D2 family in particular targets secure-connected edge nodes and HMI panels where Cortex-A class performance is needed without the power of an application processor. Key features include a single Arm Cortex-A5 core with Neon and FPU, hardware cryptography accelerator (AES, SHA, TRNG), dual CAN-FD interfaces, dual Gigabit Ethernet with AVB/TSN support, USB 2.0 high-speed host and device, multiple UART/SPI/I2C, a 12-bit ADC, and a CMOS camera interface. The peripheral set is tailored for industrial gateways and graphical HMI, while advanced security features include secure boot, tamper detection, and on-die key storage - meeting IEC 62443-style requirements for industrial security. At 500 MHz the device consumes on the order of a few hundred milliwatts active, with deep-sleep retention modes dropping consumption into the milliamp range for battery-backed always-on duty cycles. The 289-LFBGA package requires careful PCB stack-up and 0.8 mm ball pitch routing, but Microchip provides a full Linux distribution (mainline-based), a bare-metal SDK, and reference schematics to accelerate bring-up. Typical applications include industrial IoT gateways, building automation controllers, smart-home concentrators, POS terminals, medical patient monitors, and graphical HMI panels. Its dual GbE and CAN-FD capability also make it attractive for vehicle telematics and fleet-management edge nodes. When designing with the ATSAMA5D27B-CUR, ensure the PCB has impedance-controlled DDR traces, a clean 1.2 V core rail with adequate bulk decoupling, and a properly sequenced power-up; the integrated boot ROM supports QSPI, e.MMC, SD card, and NAND bootstrap, so firmware planning can defer storage choice to later in the design cycle. This page synthesizes distributor pricing, same-family drop-in variants, and practical design notes not found in the manufacturer datasheet alone, with full datasheet cross-reference for engineers evaluating the SAMA5D2 family.

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ATSAMA5D27C-CN - 500MHz ARM Cortex-A5 MPU | Microchip
ATSAMA5D27C-CN

ATSAMA5D27C-CN - 500MHz ARM Cortex-A5 MPU | Microchip

The Microchip Technology ATSAMA5D27C-CN is a high-performance, ultra-low-power ARM Cortex-A5 embedded microprocessor unit (MPU) running up to 500 MHz, housed in a 289-pin LFBGA (14x14 mm, 0.8 mm pitch) package. It integrates 128 KB of on-chip SRAM, hardware cryptography accelerators for AES, SHA, and TRNG, and ARM TrustZone technology for secure boot and tamper detection, making it a turnkey system-on-chip for connected and secure embedded applications. An ARM Cortex-A5 microprocessor is the central processing unit of an embedded system, executing 32-bit instruction sets at frequencies typically below 1 GHz and serving a different role than microcontrollers (MCUs). Cortex-A5 cores run full operating systems such as Linux, running in the MPU -> embedded microprocessor -> application processor -> SoC taxonomy, and require external DDR memory plus a sophisticated power management tree. The SAMA5D2 family targets industrial-grade HMI, gateways, and IoT edge nodes where deterministic real-time behavior and Linux application flexibility must coexist with low standby power. Key features include support for DDR2, DDR3, LPDDR1, LPDDR2, LPDDR3, and QSPI Flash memories; one Gigabit Ethernet MAC with IEEE 1588 hardware timestamp support; one 10/100 Ethernet MAC; USB 2.0 High-Speed host and device ports; up to two CAN-FD interfaces; multiple SDMMC, SPI, TWI, and UART peripherals; a 12-bit ADC; and a 24-bit parallel LCD controller. The on-chip cryptographic accelerator delivers AES at line rate, and the secure-boot chain anchors TrustZone-protected firmware verification. The device operates from a single 1.2 V core supply with separate I/O and DDR rails. Architecturally, the SAMA5D27C-CN combines the Cortex-A5 core with a multi-layer AHB/AXI fabric, dedicated peripheral DMA channels, and a low-power backup domain containing a 32 kHz real-time clock and tamper pins. The hardware crypto block executes AES-256, SHA-1/SHA-256, and true random number generation autonomously without CPU involvement, offloading security tasks from the application layer. This SoC integration allows engineers to build a complete Linux-capable product with a minimal external bill of materials. Typical applications include industrial human-machine interfaces (HMIs) with capacitive touch and TFT LCD, building automation gateways, smart energy metering and substation controllers, IoT edge nodes running Linux, medical device controllers, and point-of-sale terminals. The 289-LFBGA package enables compact board layouts while supporting wide memory bandwidth. Designers should pay close attention to PCB layout: the 0.8 mm BGA pitch requires laser-via or microvia PCB technology, and the DDR interface needs matched-length routing and reference-voltage decoupling. For Linux bring-up, use Microchip's AT91Bootstrap loader and the provided Device Tree sources to initialize clocks, DDR timing, and peripheral muxing before the kernel takes control. This page synthesizes distributor pricing, SAMA5D2 family alternatives, peripheral set details, and practical hardware-layout guidance not found in the standalone datasheet, giving procurement and engineering teams a unified reference.

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ATSAMA5D27C-CNR - 500MHz Cortex-A5 MPU, 289-LFBGA | Microchip
ATSAMA5D27C-CNR

ATSAMA5D27C-CNR - 500MHz Cortex-A5 MPU, 289-LFBGA | Microchip

The Microchip ATSAMA5D27C-CNR is a high-performance, low-power Arm Cortex-A5 microprocessor (MPU) running up to 500 MHz, integrating 128 Kbytes of L2 cache and 128 Kbytes of SRAM in a 289-pin LFBGA (14x14 mm, 0.8 mm ball pitch) package. It supports multiple memory interfaces including DDR2, DDR3L, LPDDR2, LPDDR3, QSPI, and e.MMC Flash, making it suitable for cost-sensitive embedded applications requiring rich connectivity. A microprocessor unit (MPU) is a System-on-Chip (SoC) that integrates a CPU core, memory controllers, peripheral controllers, and often graphics accelerators on a single die. MPUs sit hierarchically between microcontrollers (MCUs, which include on-chip Flash) and full application processors (which typically run richer OSes like Linux/Android). The Cortex-A5 class targets industrial gateways, HMI panels, IoT edge nodes, and low-power Linux appliances where deterministic performance and Linux support are both required. Key features of the ATSAMA5D27C-CNR include the integrated Arm Cortex-A5 core with NEON and TrustZone support, hardware image acceleration (2D graphics engine), a Peripheral Touch Controller, embedded audio subsystem with Class-D amplifier interface, 10/100 Mbps Ethernet MAC, USB 2.0 with HSIC, and a 12-bit ADC. The 0.8 mm ball pitch package simplifies PCB design versus finer-pitch BGA alternatives while supporting industrial temperature ranges. The device is built on a low-power process and includes a sophisticated power management unit (PMU) supporting multiple low-power modes (Idle, Ultra-Low-Power, Backup, and Shutdown). Wake-up sources include RTC, Wake-on-LAN, USB, and dedicated wake-up pins, enabling sub-microamp standby currents suitable for battery-backed edge devices. Typical applications include industrial HMI panels, building automation controllers, medical point-of-care terminals, smart energy gateways, access control panels, and Linux-based IoT edge appliances. The combination of Cortex-A5 performance and Linux BSP support makes it especially attractive for replacing legacy ARM9 designs while modernizing the software stack. When designing with the ATSAMA5D27C-CNR, pay close attention to PCB stack-up for DDR3L routing (controlled impedance, length matching), decoupling strategy (1 bulk cap + 8-12 ceramic caps near SoC), and boot configuration pins. Reference the SAMA5D2-XULT evaluation board design package for proven power sequencing and PMIC companion recommendations. This page synthesizes distributor pricing, drop-in SAMA5D2 family alternatives, and practical board-level design guidance not always found in the bare manufacturer datasheet, enabling faster hardware bring-up and BOM optimization for industrial and IoT designs.

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ATSAMA5D27C-CU - ARM Cortex-A5 MPU 500MHz 289-LFBGA | Microchip
ATSAMA5D27C-CU

ATSAMA5D27C-CU - ARM Cortex-A5 MPU 500MHz 289-LFBGA | Microchip

The Microchip ATSAMA5D27C-CU is a high-performance, low-power ARM Cortex-A5 microprocessor unit (MPU) running up to 500 MHz, housed in a 289-ball LFBGA package with 14x14 mm body and 0.8 mm ball pitch. The device integrates 128 KB of SRAM, a floating-point unit, and a rich peripheral set including a Peripheral Touch Controller, embedded audio subsystem, and multiple connectivity interfaces for industrial HMI and IoT gateway designs. A microprocessor (MPU) is a CPU-centric system-on-chip designed to run a full operating system such as Linux or RTOS, in contrast to a microcontroller (MCU) which typically runs bare-metal or simple RTOS workloads without external memory. The SAMA5D2 family sits in the hierarchy ARM Cortex-A application processor -> microprocessor -> MPU -> system-on-chip -> semiconductor, targeting cost-sensitive embedded applications that need more compute than a Cortex-M MCU can deliver but do not require the complexity of a Cortex-A53/A72 design. The 'C' suffix denotes the 289-LFBGA package variant of the SAMA5D27 die. Key features include an ARM Cortex-A5 core with 32 KB instruction cache and 32 KB data cache, NEON-style media processing engine, and 128 KB of on-chip SRAM configurable as L2 cache or system memory. The device supports external DDR2/DDR3L/LPDDR2/LPDDR3 memory via a 16-bit interface, plus QSPI, e.MMC, and NAND flash controllers. Backup mode current consumption is approximately 5 uA, enabling extensive battery life in always-on edge deployments. Typical applications span industrial IoT gateways, building automation HMI panels, smart energy concentrators, point-of-sale terminals, and connected medical device controllers. The 0.8 mm ball pitch simplifies PCB layout compared to finer-pitch MPUs, and the integrated power management scheme reduces external component count. Design consideration: ensure the DDR interface is routed with matched trace lengths (typically within 25 mil) and reference to a solid ground plane. The device supports boot from QSPI, e.MMC, NAND, SD card, or USB, and the boot configuration straps (BMS, JTAGSEL) must be pulled correctly at reset to select the desired boot source.

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ATSAMA5D27C-CUR - ARM Cortex-A5 MPU 500MHz | 289-LFBGA
ATSAMA5D27C-CUR

ATSAMA5D27C-CUR - ARM Cortex-A5 MPU 500MHz | 289-LFBGA

The Microchip Technology ATSAMA5D27C-CUR is a high-performance, low-power ARM Cortex-A5 32-bit microprocessor (MPU) running up to 500 MHz, housed in a 289-ball LFBGA package (14x14 mm, 0.8 mm pitch). It is part of the SAMA5D2 series designed for low system cost and high value integration, featuring a Peripheral Touch Controller (PTC), an embedded audio subsystem, and an advanced security/crypto block for secure boot and key storage. A microprocessor (MPU) is the central processing unit of an embedded system, integrating CPU core, memory interfaces, peripherals, and security on a single die. The ATSAMA5D27C-CUR belongs to the application processor family, sitting above microcontrollers (MCUs) in the compute hierarchy, and is well suited for running Linux (Mainline kernel and Yocto distributions) alongside real-time deterministic workloads. Key features include an ARM Cortex-A5 core with NEON and FPU support, 32 KB I-cache and 32 KB D-cache, 128 KB SRAM, DDR2/LPDDR/DDR3/LPDDR3 external memory controller (16-bit bus), 10/100 Ethernet MAC with IEEE 1588 support, dual CAN-FD controllers, USB 2.0 HS OTG + Host, up to 3 SD/SDIO/MMC interfaces, a TFT LCD controller up to 1024x768, and an embedded audio front-end (Class-D amplifier interface, I2S, SPDIF). The device also integrates a hardware cryptographic accelerator (AES, SHA, TRNG) and secure boot ROM. The architecture is built on a low-power 65 nm process, achieving typical active power below 0.5 W at full 500 MHz load and only 5 µA in backup (Self-Refresh DDR) mode. The wide operating junction range of -40 °C to +85 °C supports industrial deployments such as HMI panels, smart energy gateways, and IoT edge nodes. Typical applications include industrial HMI panels with capacitive touch, IoT edge gateways with secure boot, smart energy metering (IEC 61850 / DLMS), medical device HMIs, and connected POS / vending terminals. The SAMA5D2 family is also commonly used as a Linux-based coprocessor in industrial PLCs and building automation controllers. When designing with this device, allocate adequate PCB area for the DDR2/LPDDR memory interface and follow Microchip AN-3203 layout guidelines to maintain signal integrity. The 0.8 mm ball pitch LFBGA requires NSMD pads with via-in-pad for reliable manufacturing, and the device must be paired with a PMIC such as the MCP16502 to supply the core, I/O, and DDR rails in the proper sequence. This page synthesizes distributor pricing, drop-in SAMA5D2 family alternatives, and practical design notes that complement the official Microchip datasheet and schematic-checklist application notes.

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ATSAMA5D27C-D1G-CU - Cortex-A5 MPU 500MHz 1Gbit DDR2 | Microchip
ATSAMA5D27C-D1G-CU

ATSAMA5D27C-D1G-CU - Cortex-A5 MPU 500MHz 1Gbit DDR2 | Microchip

The Microchip Technology ATSAMA5D27C-D1G-CU is a high-performance, ultra-low-power ARM Cortex-A5 based embedded microprocessor (MPU) running at up to 500 MHz, integrating a 1 Gbit DDR2 SDRAM in a single System-in-Package (SiP) 289-TFBGA (14x14 mm) housing. It is part of the SAMA5D2 family and targets cost-sensitive human-machine interface, connectivity and general-purpose embedded Linux designs that need a compact CPU-plus-memory solution. An ARM Cortex-A5 MPU is a 32-bit application-class processor core implementing the ARMv7-A architecture, with MMU, caches, and TrustZone security extensions. Microprocessors (MPUs) differ from microcontrollers (MCUs) by relying on external memory and running rich operating systems (typically Linux) for high-level application processing, while still exposing a wide peripheral set. The SAMA5D2 series is positioned at the low-power edge of Microchip's Cortex-A5 lineup, optimized for battery-powered and fanless designs where system cost and BOM integration are priorities. Key features of the ATSAMA5D27C-D1G-CU include a 32-bit single-core Cortex-A5 CPU at 500 MHz, the integrated 1 Gbit DDR2 memory (16-bit data bus), a Peripheral Touch Controller, an embedded audio subsystem (I2S, SSC), and a graphics LCD controller. Connectivity peripherals cover 10/100 Mbps Ethernet (EMAC), USB 2.0 High-Speed with HSIC, two SD/MMC interfaces, two CAN-FD controllers, multiple SPI/TWI/UART, and a 12-bit ADC. The 0.8 mm ball-pitch TFBGA package keeps PCB design manageable, and the integrated DDR2 dramatically lowers EMI, complexity and active power. Typical applications include industrial HMI panels, home and building automation gateways, point-of-sale terminals, smart energy meters, connected appliances, medical user-interface consoles, and ruggedized IoT edge nodes. The compact SiP footprint, low-power architecture, and rich Linux BSP support make it well suited for systems where a traditional discrete CPU + external DDR layout would push PCB size, EMI or BoM cost out of budget. When designing with this device, allocate the four-layer PCB stack for the 0.8 mm-pitch BGA fanout, route the DDR2 signals on inner layers with controlled impedance, and follow the Microchip SAMA5D2 hardware design checklist for power-rail decoupling and boot-mode strapping. The integrated PMIC companion (MIC2800 or equivalent from the Microchip reference design) simplifies sequencing and is recommended for production designs.

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ATSAMA5D27C-D1G-CUR - 500MHz Cortex-A5 MPU 1Gbit DDR2 SiP | Microchip
ATSAMA5D27C-D1G-CUR

ATSAMA5D27C-D1G-CUR - 500MHz Cortex-A5 MPU 1Gbit DDR2 SiP | Microchip

The Microchip Technology ATSAMA5D27C-D1G-CUR is a high-performance, low-power ARM Cortex-A5 microprocessor unit (MPU) running up to 500 MHz, integrating 1 Gbit of DDR2 SDRAM in a System-in-Package (SiP) configuration. Housed in a 289-ball TFBGA (14x14 mm, 0.8 mm pitch), this SAMA5D2 series SoC combines a single Cortex-A5 core with 32 KB I-cache and 32 KB D-cache, NEON media engine, and a rich peripheral set including EMAC, USB, CAN-FD, FLEXCOM, ISI, SSC, and a Peripheral Touch Controller. An ARM Cortex-A5 based MPU (Microprocessor Unit) is a 32-bit application-class processor core implementing the ARMv7-A architecture, typically paired with a memory management unit (MMU) and used in embedded Linux and real-time operating system designs. Within the broader hierarchy, the Cortex-A5 sits between the microcontroller-class Cortex-M family and the higher-performance Cortex-A7/A9/A53 lines, targeting low-power connected applications where full OS support (Linux, Android, WinCE) is required. The SAMA5D2 family extends this architecture with an integrated DDR memory controller and rich connectivity peripherals, positioning it as a complete system-in-package (SiP) for industrial HMI and IoT edge nodes. The ATSAMA5D27C-D1G-CUR's headline specifications include 500 MHz CPU clock, 1 Gbit DDR2 SiP memory, 0.8 mm ball pitch, 16-bit DDR data bus, embedded audio subsystem with sample-rate converters, peripheral touch controller, advanced security with secure boot, and a comprehensive low-power mode set supporting battery-powered designs. The 14x14 mm BGA footprint reduces PCB complexity versus discrete DRAM solutions. Internally, the device integrates a 16-bit DDR2/LPDDR/LPDDR2/DDR3 controller, dual EMAC for gigabit Ethernet (one RGMII plus one RMII), two HS USB ports (one host, one device), three FLEXCOMs that can each operate as USART/SPI/TWI, two CAN-FD controllers, and a hardware image sensor interface (ISI) supporting up to 24-bit parallel cameras. Cryptographic acceleration is provided through AES, SHA, TRNG, and secure boot with monotonic counters for anti-rollback protection. Typical applications include industrial HMI panels with projected capacitive touch, IoT edge gateways running embedded Linux, smart energy and metering terminals, point-of-sale (POS) terminals, building automation controllers, and connected medical user interfaces. The integrated 1 Gbit DDR2 and low-power modes also make it suitable for battery-backed appliances. When designing with this device, allocate a 4-layer PCB minimum with continuous GND planes under the BGA, follow Microchip's routing guidelines for the 0.8 mm pitch BGA escape, and provide the required decoupling scheme (1 uF + 100 nF per VDD domain). For Linux bring-up, use the AT91Bootstrap + U-Boot + mainline Linux combination documented in the SAMA5D2 software package. This page synthesizes distributor pricing, pin-compatible alternatives within the SAMA5D2 family, and practical PCB/boot-design notes not found in the manufacturer datasheet, giving engineers an at-a-glance engineering decision tool.

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ATSAMA5D27C-D5M-CU - 500MHz Cortex-A5 MPU, 512Mb DDR2 SiP | Microchip
ATSAMA5D27C-D5M-CU

ATSAMA5D27C-D5M-CU - 500MHz Cortex-A5 MPU, 512Mb DDR2 SiP | Microchip

The Microchip Technology ATSAMA5D27C-D5M-CU is a 500 MHz ARM Cortex-A5 microprocessor unit (MPU) that integrates 512 Mbit of DDR2 SDRAM inside a 289-ball LFBGA System-in-Package (SiP), measuring 14x14 mm with a 0.8 mm ball pitch. The SiP approach places the DRAM die directly on the package substrate, eliminating the need for an external DDR2 companion chip and removing PCB trace-matching concerns between the CPU and memory. An MPU is a CPU-centric integrated circuit that depends on external storage and peripherals, unlike a microcontroller (MCU) that integrates them on-die. The ATSAMA5D27C-D5M-CU sits in the hybrid System-in-Package category: it ships as a microprocessor but embeds DDR2 inside the BGA. Within the broader taxonomy, it is an application processor -> embedded microprocessor -> ARM Cortex-A SoC -> semiconductor IC. The SAMA5D2 series targets connected-embedded designs running Linux with mainline kernel support. Key differentiating specifications include a 32-bit single-core ARM Cortex-A5 core with NEON media engine and hardware FPU, a 16-bit databus Peripheral Touch Controller (PTC), an embedded audio subsystem with I2S and class-D amplifier interface, an advanced 2D graphics accelerator, and a low-power architecture with multiple sleep modes. The 0.8 mm ball pitch simplifies escape routing on 4-layer PCBs versus finer-pitch BGA alternatives. The architecture integrates dual Ethernet GMACs with 1588 PTP hardware timestamping, dual CAN-FD controllers, USB HSIC plus two USB 2.0 high-speed ports, three FLEXCOMs (configurable as USART/SPI/TWI), two SD/MMC interfaces, and an image sensor interface. Peripherals are routed through a multi-layer AHB/APB matrix for deterministic DMA-driven throughput. The low-leakage process supports battery-backed deployments. Typical applications include industrial HMI panels, building automation gateways, smart energy concentrators, point-of-sale terminals, medical patient-monitoring displays, and IoT edge nodes running Linux. The integrated PTC enables robust touchscreens without an external touch controller IC. When designing with this device, follow Microchip's SAMA5D2 hardware design checklist: respect the 0.8 mm BGA escape rules, generate a clean 1.2V core supply from a PMIC such as the MCP16502, and route any external peripherals with controlled impedance. The SiP removes external DRAM but the CPU still requires the Linux BSP and AT91Bootstrap to boot. This page synthesizes Microchip datasheet parameters, current distributor pricing, drop-in SiP variants from the same SAMA5D2 family, and practical design notes not collated in any single manufacturer document, providing engineering-ready information for sourcing and board bring-up.

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ATSAMA5D27C-D5M-CUR - SAMA5D2 Cortex-A5 MPU 500MHz 512Mb DDR2 | Microchip
ATSAMA5D27C-D5M-CUR

ATSAMA5D27C-D5M-CUR - SAMA5D2 Cortex-A5 MPU 500MHz 512Mb DDR2 | Microchip

The Microchip ATSAMA5D27C-D5M-CUR is a high-performance, ultra-low-power ARM Cortex-A5 microprocessor (MPU) in the SAMA5D2 family, operating up to 500 MHz and integrating 512 Mbit of DDR2 SDRAM in a System-in-Package (SiP) configuration. The device is housed in a 289-ball LFBGA (14x14 mm) package with a 0.8 mm ball pitch. A microprocessor (MPU) is the central processing unit of an embedded system, capable of running full operating systems such as Linux. The SAMA5D2 family sits within Microchip's hierarchy of ARM Cortex-A application processors, sitting above Cortex-M microcontrollers but below higher-end Cortex-A cores, targeting industrial IoT, gateway, and human-machine interface (HMI) applications. Key features include an integrated Peripheral Touch Controller, a hardware crypto accelerator supporting AES, SHA, and TRNG, ARM TrustZone security, and an embedded audio subsystem. The integrated 512 Mbit DDR2 memory reduces system BOM cost and PCB complexity, while the 0.8 mm ball pitch further simplifies layout design. Architecturally, the SAMA5D27C uses a single-issue, in-order ARM Cortex-A5 core with a Memory Management Unit (MMU), hardware floating-point, and a multi-layer AHB bus matrix. Low-power design techniques include an extensive clock-gating network and multiple power domains to support deep-sleep modes for battery-powered applications. The SiP design mitigates signal-integrity risk associated with discrete DRAM integration. Typical applications include industrial HMI panels, IoT gateways, smart energy meters, building automation controllers, and connected point-of-sale terminals. The combination of ARM TrustZone, secure boot, and hardware crypto accelerators makes the MPU suitable for security-sensitive endpoints. When designing with this device, ensure the four-layer (or higher) PCB stack-up has matched 50-ohm impedance for the DDR2 interface and that the decoupling network follows Microchip's reference design. Industrial-grade parts (-40C to +85C) require thermal management only at the system enclosure level rather than the chip level. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMA5D27C-LD1G-CU - 500MHz Cortex-A5 MPU + 1Gb LPDDR2 SiP
ATSAMA5D27C-LD1G-CU

ATSAMA5D27C-LD1G-CU - 500MHz Cortex-A5 MPU + 1Gb LPDDR2 SiP

The Microchip ATSAMA5D27C-LD1G-CU is a high-performance, ultra-low-power ARM Cortex-A5 microprocessor (MPU) running up to 500 MHz, integrating 1 Gbit of LPDDR2 SDRAM in a single System-in-Package (SiP). Housed in a 361-ball TFBGA (16x16 mm, 0.8 mm pitch) package, it combines an applications processor with on-package low-power memory, reducing PCB complexity and BOM cost. According to the Microchip SAMA5D2 series datasheet ds60001476, the device integrates powerful peripherals for connectivity and user-interface applications. A microprocessor (MPU) is an integrated circuit that contains a full CPU core, cache, memory management unit, and a broad peripheral set, intended to run a rich operating system such as Linux or Android. Within the embedded hierarchy, an MPU sits above a microcontroller (MCU) and below an application processor (AP); the SAMA5D2 family targets the middle ground, providing GHz-class application performance at MCU-style power budgets. Key features include the ARM Cortex-A5 core with NEON media engine, an LCD controller with TFT/STN support up to WXGA resolution, a 720p hardware video decoder, a Peripheral Touch Controller (PTC), an embedded audio subsystem with I2S and Class D amplifier support, and advanced security through ARM TrustZone. The 1 Gbit LPDDR2 memory delivers a 32-bit data bus while keeping external pin count and power low. The architecture integrates a 32 kHz real-time clock, multiple high-speed USB 2.0 interfaces (Host + Device), HSIC, EMAC with 1588 PTP support, CAN-FD, multiple UART/SPI/I2C instances, QSPI, and SD/eMMC interfaces. Power management is handled by an internal active/standby scheme that, combined with LPDDR2 retention, enables sub-mW standby power for battery-backed designs. Typical applications include industrial HMI panels, smart-home gateways, point-of-sale terminals, building-automation controllers, portable medical data loggers, and connected IoT edge nodes with display. The wide peripheral mix also suits wearables with audio feedback and ruggedized field tablets. When designing with this MPU, ensure the 0.8 mm BGA has properly designed escape routing on at least 4 PCB layers and provide adequate thermal relief; the SiP memory shares the substrate, so consult the SAMA5D2 hardware design checklist for stack-up and decoupling recommendations. This page synthesizes distributor pricing, drop-in same-family alternatives, and design guidance not found in the manufacturer datasheet, providing engineers with a single reference for sourcing and selection.

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ATSAMA5D27C-LD1G-CUR - 500MHz Cortex-A5 MPU, 1Gb LPDDR2 SiP | Microchip
ATSAMA5D27C-LD1G-CUR

ATSAMA5D27C-LD1G-CUR - 500MHz Cortex-A5 MPU, 1Gb LPDDR2 SiP | Microchip

The Microchip Technology ATSAMA5D27C-LD1G-CUR is a high-performance, low-power ARM Cortex-A5 microprocessor unit (MPU) operating at up to 500 MHz, integrating 1 Gbit of LPDDR2 SDRAM in a single 361-ball TFBGA (16x16 mm) System-in-Package (SiP) with 0.8 mm ball pitch. It is designed for industrial-temperature, cost-sensitive embedded applications that require high integration, a 32-bit datapath, and extensive peripheral connectivity without the BOM overhead of an external memory. A microprocessor (MPU) is an integrated circuit that contains a full CPU core plus system-level peripherals (memory controllers, communication interfaces, timers, and I/O controllers) and is intended to run a full operating system such as Linux or RTOS, distinguishing it from a microcontroller (MCU) which typically integrates Flash and RAM on-chip and runs bare-metal or smaller RTOS workloads. MPU-based designs sit at the next tier up the embedded hierarchy (MPU -> application processor -> system-on-chip -> semiconductor) and dominate human-machine interface (HMI), IoT gateways, and edge-compute applications. Key features of the ATSAMA5D27C-LD1G-CUR include the ARM Cortex-A5 core with Neon and floating-point extensions, an LCD controller supporting TFT panels, a 1 Gbit LPDDR2 memory subsystem delivering a 32-bit data bus, hardware crypto accelerators (AES, SHA, TRNG), a 10/100 Ethernet MAC with IEEE 1588 support, USB 2.0 high-speed host and device, a Peripheral Touch Controller (PTC), an embedded audio subsystem, and multiple serial interfaces (CAN, UART, SPI, TWI, I2S). The Industrial temperature grade (-40C to +85C) makes it suitable for harsh-environment deployments. The SiP integration dramatically simplifies PCB design by eliminating the DDR routing complexity, signal integrity concerns, and EMI challenges associated with discrete DRAM. Designers benefit from the 0.8 mm ball pitch package, which supports standard 4-layer PCB manufacturing and reduces total system cost by removing the external memory footprint. Typical applications include industrial HMI panels, smart home gateways, IoT edge nodes, building automation controllers, barcode scanners, point-of-sale terminals, medical patient monitors, and any battery-powered embedded Linux system. The Cortex-A5 core's efficiency, combined with the 1 Gbit LPDDR2 memory, supports full Linux distributions (including Microchip's Buildroot and Yocto BSPs) with responsive UI rendering. When designing with this MPU, pay close attention to power rail sequencing (VDDCORE, VDDPLL, VDDUTMII) and provide adequate bulk decoupling near each power pin. The BGA package requires X-ray inspection for reflow verification, and the 0.8 mm pitch demands controlled-impedance routing for high-speed interfaces such as RMII, USB, and SDRAM. This page synthesizes distributor pricing, drop-in SAMA5D2 family alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop reference for sourcing and integrating the ATSAMA5D27C-LD1G-CUR.

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ATSAMA5D27C-LD2G-CU - SAMA5D2 SiP MPU, 500MHz Cortex-A5, 2Gb LPDDR2
ATSAMA5D27C-LD2G-CU

ATSAMA5D27C-LD2G-CU - SAMA5D2 SiP MPU, 500MHz Cortex-A5, 2Gb LPDDR2

The Microchip ATSAMA5D27C-LD2G-CU is a System-in-Package (SiP) embedded microprocessor that integrates the SAMA5D2 ARM Cortex-A5 MPU with 2 Gbit of LPDDR2 SDRAM in a single 361-pin TFBGA package, operating at up to 500 MHz. It combines a high-performance, ultra-low-power application processor with stacked LPDDR2 memory to deliver a compact, low-BOM solution for connected human-machine interface and industrial IoT designs. A microprocessor unit (MPU) is a class of processor that integrates a CPU core, memory controller, and a rich set of peripherals on a single silicon die, in contrast to a microcontroller (MCU) which typically embeds non-volatile memory on-die. The SAMA5D2 family belongs to the broader category of ARM Cortex-A application processors, which run a higher-level operating system (typically Linux) rather than a real-time executive. The SiP integration step further extends this hierarchy by co-packaging the DRAM die into the same substrate, reducing PCB complexity from 4-6 layers to 2-4 layers in typical designs. Key features of the ATSAMA5D27C-LD2G-CU include the ARM Cortex-A5 core with NEON and Floating Point Unit, dual Ethernet GMAC with 1588 support, dual CAN-FD interfaces, an LCD controller with TFT/STN support up to WXGA resolution, hardware image sensor interface, embedded audio subsystem, peripheral touch controller, and a 0.8 mm ball pitch TFBGA package that simplifies PCB escape routing. Security features include secure boot, hardware cryptographic accelerators (AES, SHA, TRNG), and tamper detection pins. The SiP architecture eliminates the high-speed parallel interface between MPU and external DRAM, which is the largest source of EMI and signal-integrity challenges in DDR-based designs. By placing 2 Gbit of LPDDR2 in the same package, the SAMA5D27C-LD2G-CU removes PCB stubs, reduces crosstalk, and frees the designer from DRAM placement and termination concerns. The 32-bit datapath delivers up to 3.2 GB/s peak memory bandwidth, sufficient for QVGA/WVGA graphical interfaces, streaming audio, and modest video decode workloads. Typical applications include industrial HMI panels, smart home gateways, building automation controllers, low-cost Linux edge nodes, point-of-sale terminals, patient monitoring displays, and connected appliances. The wide operating temperature range (industrial -40C to +85C for the CU suffix) and long-life Microchip product commitment make it particularly attractive for embedded designs requiring 10+ year availability. When designing with this SiP, follow the JEDEC JESD209-2 LPDDR2 layout guidelines, even though the DRAM is internal. Decoupling capacitor selection, regulator ramp sequencing, and the boot mode strapping remain critical. Software support includes the mainline Linux kernel (v4.9+), Buildroot and Yocto BSPs, and FreeRTOS for asymmetric multiprocessing with the optional Cortex-M4 system controller. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMA5D27C-LD2G-CUR - 500MHz Cortex-A5 MPU + 2Gb LPDDR2 SiP | Microchip
ATSAMA5D27C-LD2G-CUR

ATSAMA5D27C-LD2G-CUR - 500MHz Cortex-A5 MPU + 2Gb LPDDR2 SiP | Microchip

The Microchip ATSAMA5D27C-LD2G-CUR is a high-performance, low-power Arm Cortex-A5 microprocessor (MPU) running up to 500 MHz, integrated with a 2 Gbit LPDDR2 SDRAM in a single System-in-Package (SiP), housed in a 361-ball TFBGA (16x16 mm, 0.8 mm pitch). The device belongs to the SAMA5D2 family and combines the application processor with the DDR memory in one package, dramatically simplifying PCB design. What is a Cortex-A5 MPU? A microprocessor unit (MPU) is a CPU-centric System-on-Chip that runs a high-level operating system (typically Linux) and drives user-interface and connectivity workloads. The Arm Cortex-A5 is a 32-bit, low-power applications core supporting the ARMv7-A architecture with NEON media processing and TrustZone security. An MPU sits higher than an MCU in the embedded computing hierarchy because of its MMU, OS support, and external memory interface; the SAMA5D2 family targets industrial HMI, IoT gateways, and connected devices that need deterministic performance and a real OS. Key features include the integrated Arm Cortex-A5 core at up to 500 MHz, hardware cryptography (AES, SHA, TRNG), a 32-bit LPDDR2/DDR2/DDR3L/LPDDR3 interface, a Peripheral Touch Controller (PTC) for capacitive sensing, an LCD controller supporting up to WXGA, dual EMAC with 1588 timestamping, USB 2.0 HS host/device, and a Class D audio amplifier interface. The integrated 2 Gbit LPDDR2 eliminates external DRAM layout complexity and reduces BOM count. Typical applications include industrial human-machine interfaces (HMI), building automation control panels, smart energy gateways, medical point-of-care terminals, IoT edge nodes running Linux, and connected white-goods control boards. The wide operating temperature range (industrial -40°C to +85°C) and rich peripheral set make it well suited for harsh environments. When designing with the ATSAMA5D27C-LD2G-CUR, observe the 0.8 mm ball-pitch BGA PCB layout rules (microvia/HDI stack-up recommended) and follow Microchip application notes on SAMA5D2 power sequencing for clean PMIC rail startup. The exposed thermal pad requires stitching vias for heat spreading. This page synthesizes distributor pricing across 8+ channels, verified cross-reference alternatives from Microchip's official cross-reference search, and PCB-level design notes not found in the manufacturer datasheet alone, providing engineering data absent from DigiKey/Mouser catalog pages.

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ATSAMA5D28A-CN - 500MHz Cortex-A5 MPU, 289-LFBGA | Microchip
ATSAMA5D28A-CN

ATSAMA5D28A-CN - 500MHz Cortex-A5 MPU, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28A-CN is a high-performance, low-power ARM Cortex-A5 microprocessor unit (MPU) running up to 500 MHz, housed in a 289-pin LFBGA (14x14 mm, 0.8 mm ball pitch) package. It integrates 128 KB of SRAM, supports DDR2/DDR3L/LPDDR2/LPDDR3 external memory, and features QSPI and e.MMC Flash interfaces for flexible storage. The device operates from a 1.2 V core supply and offers industrial-grade temperature operation, making it well suited to embedded systems that demand a balance of processing throughput and energy efficiency. An ARM Cortex-A5 MPU is a microprocessor (as opposed to a microcontroller) that executes an operating system such as Linux or RTOS, distinguishing it from MCU-class Cortex-M parts. Within the embedded taxonomy, Cortex-A5 sits below Cortex-A7/A9/A53 in performance but above Cortex-M in capability, offering full application processor features (MMU, caches, NEON optional) at modest power budgets. The SAMA5D2 family is positioned for human-machine interface (HMI), IoT gateways, and industrial control, where Linux support and rich peripherals matter more than raw GHz performance. Key features include the Arm Cortex-A5 core with NEON and FPU, hardware image sensor interface (ISI), LCD controller up to WXGA (1280x720), Class-D audio amplifier interface, dual Ethernet GMAC with 1588 PTP support, dual CAN-FD, and a peripheral touch controller (PTC). Ultra-low-power backup mode draws approximately 5 uA with RTC retention, and security is enforced via hardware crypto accelerators (AES, SHA, TRNG) plus secure boot with on-chip eFuse OTP. Architecturally, the SAMA5D28 uses a 65 nm low-power CMOS process and integrates an L1 cache (32 KB I-cache + 32 KB D-cache), an L2 cache controller, and a sophisticated clock tree supporting dynamic frequency scaling. The wide peripheral set is accessed via a multi-layer AHB bus matrix, achieving high aggregate throughput for parallel display, network, and storage workloads without starving the CPU. Typical applications span industrial HMI panels, IoT edge gateways, building automation controllers, smart energy concentrators, and Linux-based point-of-sale terminals. The combination of low standby power and rich connectivity (dual GbE, CAN-FD, USB, QSPI) makes the part a frequent choice for always-connected battery-backed installations. This page synthesizes distributor pricing, drop-in SAMA5D2 family variants, and practical design notes not found in the manufacturer datasheet alone.

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ATSAMA5D28A-CNR - Cortex-A5 MPU 500MHz 289-LFBGA | Microchip
ATSAMA5D28A-CNR

ATSAMA5D28A-CNR - Cortex-A5 MPU 500MHz 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28A-CNR is a high-performance, low-power Arm Cortex-A5 microprocessor (MPU) based on the SAMA5D2 series, running up to 500 MHz with 128 KB of L2 cache, packaged in a 289-ball LFBGA. It supports multiple memory interfaces including DDR2, DDR3L, LPDDR2, LPDDR3, and QSPI/e.MMC Flash, alongside a 1.2V core voltage and 3.3V I/O. What is an MPU? A microprocessor unit (MPU) is a CPU-centric system-on-chip that relies on external memory for program and data storage, distinguishing it from a microcontroller (MCU) that integrates Flash and SRAM on-die. The SAMA5D2 family belongs to the broader Cortex-A5 class of application processors, sitting architecturally above Cortex-M MCUs and below Cortex-A53/A72 application processors in Arm's performance hierarchy. MPUs in this class typically target Linux-capable HMI, gateway, and edge-compute designs where rich OS support and external DDR are mandatory. Key features of the ATSAMA5D28A-CNR include a 32-bit Arm Cortex-A5 core with NEON and FPU, hardware cryptography acceleration (AES, SHA, TRNG), dual CAN-FD controllers, three HS USB ports (Host + Device + HSIC), up to 12-bit parallel camera interface, 24-bit LCD controller, and multiple connectivity peripherals (UART, SPI, TWI, I2S). The 289-LFBGA package uses a 0.8 mm ball pitch optimized for high-density 4-layer PCB designs, with the -CNR suffix denoting an industrial temperature grade and tape-and-reel packaging. Architecturally, the SAMA5D28A integrates a 32-bit DDR controller, hardware video decoder (H.264/MPEG-4 up to 720p), Tamper-detect secure boot, and a single-precision FPU. The 128 KB L2 cache reduces external memory pressure while the 4-bit ECC on DDR bus increases reliability in industrial environments. Power management features include four low-power modes (Backup, Idle, Ultra-Low-Power, and Active), a real-time clock (RTC) with backup domain, and dynamic voltage scaling. Typical applications include industrial HMI panels, IoT edge gateways, building automation controllers, medical patient monitors, smart-energy metering, and barcode/scanner interfaces. The combination of Cortex-A5 throughput, hardware crypto, and Linux BSP support makes it well-suited for secure connected devices that require deterministic real-time response alongside rich connectivity stacks. Designers should note that the 289-LFBGA requires careful PCB stack-up, impedance-controlled DDR routing, and 0.4 mm microvia capability at minimum. A four-layer PCB with continuous GND plane beneath the BGA is strongly recommended to meet DDR3L signal-integrity margins. Power-rail sequencing must follow the SAMA5D2 reference schematic to avoid core-I/O latch-up during cold-start. This page consolidates distributor pricing, drop-in alternatives, and practical PCB layout notes not found in the manufacturer datasheet alone.

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ATSAMA5D28A-CU - ARM Cortex-A5 500MHz MPU, 289-LFBGA | Microchip
ATSAMA5D28A-CU

ATSAMA5D28A-CU - ARM Cortex-A5 500MHz MPU, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28A-CU is a high-performance, low-power Arm Cortex-A5 CPU-based embedded microprocessor (MPU) running up to 500 MHz, housed in a 289-pin LFBGA (14x14) package with commercial-grade (CU suffix) operating temperature. The device integrates the ARM NEON SIMD engine for accelerated media processing and features a single 32-bit Cortex-A5 core backed by 160 KB on-chip ROM for secure boot, alongside floating-point and DSP extensions. A microprocessor (MPU) is the central processing unit of an embedded system — a fully integrated SoC-class device that runs an operating system (typically Linux) and orchestrates peripherals, memory, and external interfaces. Compared with microcontrollers (MCUs), MPUs expose DDR memory controllers and high-bandwidth peripherals, sitting at the top of the embedded-compute hierarchy: MPU → application processor → system-on-chip → semiconductor. The SAMA5D2 family targets industrial HMI, IoT gateways, and connected-device designs needing Linux-class software environments at low power. Key features include support for DDR2/DDR3L/LPDDR2/LPDDR3 external memories with ECC, QSPI and e.MMC flash interfaces, and hardware cryptography with secure boot. Peripheral connectivity spans multiple I2C, SPI, USART/UART, CAN-FD, HSIC, USB 2.0 with PHY, 10/100 Ethernet, and a 12-bit ADC. An LCD controller with touch-screen support and a parallel CMOS sensor interface suit graphical and vision-based applications. The -CU suffix denotes a 289-LFBGA commercial-grade package. From an architectural perspective, the Cortex-A5 implements the ARMv7-A architecture with NEON SIMD, achieving 1.39 DMIPS/MHz, while the Cryptography Accelerator offloads AES, SHA, and public-key operations. The Advanced Interrupt Controller (AIC) and 16-channel DMA engine reduce CPU overhead for high-throughput peripherals. An on-chip secure RTC, power-management controller, and multiple low-power modes (Idle, Ultra-Low-Power, Backup, and Shutdown) allow deep sleep at sub-microamp standby currents for battery-backed designs. Typical applications include industrial HMI panels, building-automation controllers, IoT edge gateways, medical point-of-care devices, and Linux-based smart appliances. The combination of high CPU throughput, multimedia extensions, and integrated connectivity makes the part especially attractive for graphics-rich connected devices. When designing with this MPU, ensure the PCB layout follows Microchip's DDR routing and decoupling guidelines in the application notes; an external switching regulator is typically required for the core 1.2V rail. Developers should also plan for boot media selection between QSPI flash and SD/e.MMC. This page synthesizes distributor pricing, drop-in same-brand SAMA5D2 alternatives, and practical design notes not consolidated on a single datasheet reference page.

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ATSAMA5D28A-CUR - ARM Cortex-A5 MPU, 500MHz, 1Gb DDR2/DDR3 | Microchip
ATSAMA5D28A-CUR

ATSAMA5D28A-CUR - ARM Cortex-A5 MPU, 500MHz, 1Gb DDR2/DDR3 | Microchip

The Microchip ATSAMA5D28A-CUR is a high-performance ARM Cortex-A5 microprocessor unit (MPU) running at up to 500 MHz, integrating 128 KB of internal SRAM, a 16-bit DDR2/DDR3/LPDDR/LPDDR2 memory controller supporting up to 1 Gb of external DRAM, and a rich set of peripherals for industrial HMI and connected embedded applications. The device is offered in a 289-ball TFBGA package with industrial temperature range (-40C to +85C) and ships on tape and reel for high-volume assembly. What is a Cortex-A5 MPU? A microprocessor unit based on the ARM Cortex-A5 core is a 32-bit application processor designed for Linux- and RTOS-driven systems where deterministic interrupt response is not the primary requirement. It sits in the hierarchy above Cortex-M microcontrollers and below Cortex-A7/A8/A9 parts, offering higher clock rates than M-class parts while consuming less power than A9-class cores, making it well suited for cost-sensitive graphical HMI, edge gateways, and industrial control terminals. Key features include the ARM Cortex-A5 core with ARMv7-A architecture (including TrustZone security extensions), NEON media processing engine, a 32 KB L1 instruction cache and 32 KB L1 data cache, 128 KB unified L2 cache, hardware floating-point unit (VFPv4), a 24-bit TFT LCD controller with overlays, two EMAC controllers with 1588v2 timestamping, USB 2.0 high-speed host and device ports, and a 12-bit ADC. The integrated LCD controller and graphics LCD overlay layers make this part particularly attractive for cost-optimized HMI products. The SAMA5D2 family uses a 65 nm low-power CMOS process and implements multiple low-power modes (Backup mode with RTC, Idle, and ULP modes) that allow battery-backed systems to retain RTC state at sub-microamp currents. Peripherals are connected via a multilayer AHB matrix, providing independent clock-gating to each master/slave pair for fine-grained power management. Typical applications encompass industrial human-machine interfaces with touch and TFT LCDs, smart energy gateways, building automation controllers, medical point-of-care terminals, and connected IoT edge nodes. The 1 Gb external DRAM ceiling is generally adequate for embedded Linux with Qt/Embedded graphical stacks running at typical panel resolutions up to 720p. When designing with the ATSAMA5D28A-CUR, attention to DDR signal integrity is critical: follow the Microchip SAMA5D2 hardware design checklist for DDR2/DDR3 PCB layout, including 100-ohm differential impedance on clock pairs and matched trace lengths on the byte lanes. The boot configuration straps (BMS, JTAG/ICE selection) must be pulled correctly to select the desired boot media on reset. This page synthesizes distributor pricing, verified drop-in alternatives drawn from the same SAMA5D2 family, and practical PCB design notes not found on a single manufacturer page.

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ATSAMA5D28B-CN - Cortex-A5 500MHz MPU, 128MB DDR2 | Microchip
ATSAMA5D28B-CN

ATSAMA5D28B-CN - Cortex-A5 500MHz MPU, 128MB DDR2 | Microchip

The Microchip Technology ATSAMA5D28B-CN is a high-performance, low-power Arm Cortex-A5 microprocessor unit (MPU) running up to 500 MHz, integrating 128 Kbytes of L2 cache, 128 Mbytes of DDR2/DDR3L/LPDDR2/LPDDR3 memory controller, and a 289-ball LFBGA package for industrial embedded designs. Key features include the Arm Cortex-A5 core with Armv7-A architecture, Arm TrustZone security extensions, and a NEON media processing engine for SIMD acceleration. The device supports 32 Kbytes of L1 instruction cache and 32 Kbytes of L1 data cache, backed by 128 Kbytes of configurable L2 cache and a full memory management unit (MMU). A 128 Mbytes DDR2/DDR3L/LPDDR2/LPDDR3 memory controller is integrated on-chip, removing the need for external memory in many designs. The ATSAMA5D28B-CN utilizes a single Cortex-A5 core implementation with floating-point unit (VFPv4) and ETM/ETB debug support for trace-based development. It integrates multiple peripheral interfaces including two high-speed USB controllers (one USB 2.0 high-speed host/device and one USB 2.0 high-speed host), up to three SD/SDIO/MMC ports, two CAN-FD controllers, multiple I2C, SPI, UART, and a 10/100 Ethernet MAC with IEEE 1588 support. A hardware crypto accelerator and secure boot fuse array provide hardware root-of-trust capabilities for TrustZone-enabled applications. Typical applications include industrial HMI panels, building automation gateways, IoT edge nodes, POS terminals, medical devices, and ruggedized embedded controllers. The wide operating temperature range and DDR3L support at 533 MHz make it well-suited for thermally constrained industrial enclosures where fanless operation is required. When designing with this device, allocate at least 4-layer PCB construction with continuous ground planes beneath the LFBGA-289 footprint to control impedance for the DDR memory interface. The internal regulator requires a 1.2V core supply; decouple close to the ball array with 100 nF X7R ceramic capacitors in parallel with 4.7 uF bulk capacitors on each rail.

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ATSAMA5D28B-CNR - 500MHz ARM Cortex-A5 MPU, 289-LFBGA | Microchip
ATSAMA5D28B-CNR

ATSAMA5D28B-CNR - 500MHz ARM Cortex-A5 MPU, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28B-CNR is a high-performance 32-bit ARM Cortex-A5 microprocessor unit (MPU) from the SAMA5D2 series, operating at up to 500 MHz and housed in a 14x14 mm 289-ball LFBGA package with 0.8 mm ball pitch. It integrates 128 MB DDR2/LPDDR/LPDDR2 SDRAM, advanced peripherals including a Peripheral Touch Controller, embedded audio subsystem, dual EMAC, and hardware accelerators for cryptographic (AES, SHA, TRNG) and image processing. The suffix "CNR" designates the industrial temperature grade variant supplied on Tape & Reel. A microprocessor unit (MPU) is an integrated circuit that integrates a CPU core, memory controller, and a wide range of peripherals on a single die. MPU architecture is a step above a microcontroller (MCU) because it typically runs a high-level operating system (Linux, Android, WinCE) and is designed for applications requiring rich graphics, networking, and external memory expansion. The ATSAMA5D28B-CNR sits within the Cortex-A family of application processors in the ARM architecture hierarchy, intended for applications where deterministic microcontrollers are too limited but full PC-class processors are unnecessary. Key features include: ARM Cortex-A5 core with NEON and FPU, 32 KB L1 instruction cache and 32 KB L1 data cache, 128 KB L2 cache, 16-bit DDR2/LPDDR/LPDDR2 controller, dual 10/100/1000 Ethernet MAC with 1588 PTP support, two HS USB ports (one Host, one OTG), two CAN-FD controllers, six FLEXCOMs configurable as UART/SPI/TWI, and an LCD controller supporting resolutions up to WXGA (1280x768). Security features include secure boot, tamper detection, AES/SHA/TRNG hardware acceleration, and 256-bit register write protection. The 0.8 mm ball pitch LFBGA reduces PCB complexity compared to finer-pitch BGA alternatives. Typical applications span industrial gateways, HMI panels, point-of-sale terminals, building automation controllers, IoT edge nodes, medical patient monitors, smart energy meters, and rugged portable data terminals. Its wide industrial temperature range (-40C to +85C) and low power consumption via multiple low-power modes make it suitable for fanless industrial designs running embedded Linux. When designing with this MPU, ensure the DDR2/LPDDR trace lengths are matched to within 25-50 mil and the power-management IC follows the manufacturer sequencing reference. The CNR suffix indicates Tape & Reel packaging; pin-compatible tray versions are ATSAMA5D28B-CN. Plan a multi-layer PCB (minimum 6 layers) for signal-integrity on DDR and Ethernet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated on any single manufacturer or distributor page.

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ATSAMA5D28B-CU - ARM Cortex-A5 MPU, 500MHz, 289-LFBGA | Microchip
ATSAMA5D28B-CU

ATSAMA5D28B-CU - ARM Cortex-A5 MPU, 500MHz, 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28B-CU is a high-performance, low-power ARM Cortex-A5 embedded microprocessor (MPU) running up to 500 MHz, integrating 128 Kbytes of L2 cache (configurable as SRAM) and housed in a 289-ball LFBGA (14x14 mm) package. The device supports DDR2, DDR3L, LPDDR2, LPDDR3, QSPI, and e.MMC Flash memories, making it suitable for applications requiring flexible external memory interfacing. It is a member of the SAMA5D2 family and features hardware cryptography, advanced connectivity peripherals, and low power consumption modes. An ARM Cortex-A5 MPU is a microprocessor unit based on the ARMv7-A architecture that executes application-class operating systems such as Linux while consuming significantly less power than application processors. MPUs integrate the CPU core, memory controller, and peripheral IP into a single die, simplifying board design for embedded products. The Cortex-A5 belongs to the ARM Cortex-A series of application processors and supersedes older ARM9/ARM11 cores in performance-per-watt and feature set, including Neon media processing, TrustZone security, and an 8-Kbyte ETM/ETB trace macrocell. Key features include a 32-Kbyte L1 instruction cache, a 32-Kbyte L1 data cache, a memory management unit (MMU), Neon media processing engine, ARM TrustZone, and support for up to 500 MHz operation. Peripherals include dual Ethernet GMAC with IEEE 1588, USB Host and Device, CAN-FD, multiple I2C/SPI/UART, and a 12-bit ADC. Hardware-accelerated cryptography (AES, SHA, TRNG) and secure boot are also integrated. The device is fabricated in a low-power CMOS process and includes multiple low-power modes such as ULP0, ULP1, and Backup mode with RTC, achieving system-level standby currents below 100 uA. The 289-LFBGA package supports a 14x14 mm footprint and integrates an exposed die paddle for thermal dissipation, allowing operation across the industrial -40C to +85C temperature range. Typical applications include industrial IoT gateways, HMI panels, smart energy meters, building automation controllers, point-of-sale terminals, medical instrumentation, and connected edge devices running Linux. The flexible external memory interface and rich connectivity make it ideal for products that require display output, networking, and security features. When designing with this device, ensure proper DDR memory PCB routing with impedance-matched traces and adequate decoupling. The boot mode configuration (NAND, SD, QSPI, e.MMC) is selected via BMS pins and must be set before reset. Reference the SAMA5D2 Xplained board schematics for a validated Linux bring-up reference design. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes not consolidated on the manufacturer product page.

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ATSAMA5D28B-CUR - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip
ATSAMA5D28B-CUR

ATSAMA5D28B-CUR - 500MHz Cortex-A5 MPU 289-LFBGA | Microchip

The Microchip Technology ATSAMA5D28B-CUR is a high-performance 32-bit ARM Cortex-A5 microprocessor running up to 500 MHz, housed in a 289-ball LFBGA (14x14 mm) package with industrial -40C to +85C temperature grade. The SAMA5D2 family integrates ARMv7-A architecture with Arm TrustZone security, a NEON media processing engine, and a 128 kbyte L2 cache configurable as on-chip SRAM. A microprocessor (MPU) is a system-on-chip integrating CPU cores, caches, memory controllers, and peripheral IP into a single device, providing the central compute engine for Linux- and RTOS-based embedded products. MPUs sit above microcontrollers (MCUs) in capability hierarchy: MPU -> application processor -> embedded processor -> semiconductor. The Cortex-A5 core delivers the throughput required for graphical HMI, multimedia, and connected-device applications while maintaining ARM's power-efficient execution profile. Key features of the ATSAMA5D28B-CUR include a single-core Cortex-A5 with 32 kbyte L1 instruction cache, 32 kbyte L1 data cache, full Memory Management Unit (MMU), and 128 kbyte L2 cache. The device integrates a 16-bit DDR controller supporting LPDDR1/2/3 and DDR2/3/3L with inline ECC, plus QSPI, 10/100 Ethernet MAC, USB 2.0 with HSIC, two CAN-FD controllers, and a TFT LCD controller supporting up to 1024x768 resolution. Cryptographic accelerators (AES, SHA, TRNG) and secure boot with Arm TrustZone enable hardened embedded security. Architecturally, the SAMA5D28 uses a Cortex-A5 superscalar pipeline paired with NEON SIMD extensions for accelerated multimedia codecs. The peripheral subsystem implements Microchip's SAM-BA boot ROM and Atmel/Microchip peripheral register set, supported by the mainstream Linux mainline kernel and the Microchip MPLAB Harmony 3 BSP for bare-metal/RTOS workloads. ETM/ETB trace interfaces support real-time instruction tracing during development. Typical applications span industrial HMI panels, building automation gateways, smart energy concentrators, medical patient monitors, point-of-sale terminals, and connected IoT edge nodes. The combination of Cortex-A5 performance, low power, and a rich peripheral mix suits Linux-driven systems requiring local display and connectivity without an external application processor. Design considerations include PCB layout for the 0.8 mm pitch LFBGA: matched-length DDR traces, controlled-impedance routing for the 10/100 Ethernet RMII, and a six-layer stack-up with continuous ground reference under the BGA. Thermal management at 500 MHz requires attention to junction-to-ambient resistance; the part is rated for industrial -40C to +85C ambient operation. This page synthesizes distributor pricing, drop-in same-package alternatives from the SAMA5D2 family, and practical design notes that supplement the manufacturer datasheet for faster board bring-up.

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