AT91SAM9G20B-W

The AT91SAM9G20B-W is an embedded microprocessor based on the Arm926EJ-S core running at 400 MHz. It integrates on-chip memories, a six-layer bus matrix and a broad set of peripherals to support embedded applications requiring Ethernet, USB and image capture interfaces.

Designed for industrial-grade environments, this SAM9G-series device targets embedded systems that need a compact, highly integrated MPU with flexible external memory support and comprehensive system control features.

Key Features

• Core & Performance  Arm926EJ-S processor core at 400 MHz with 32‑Kbyte data cache, 32‑Kbyte instruction cache and write buffer; includes MMU, DSP instruction extensions and EmbeddedICE debug support.
• Memory & External Bus (EBI)  Internal ROM (64 Kbyte) and SRAM (two × 16 Kbyte); External Bus Interface supports SDRAM, static memories, ECC-enabled SLC NAND Flash and CompactFlash® devices for flexible system memory configurations.
• Connectivity  Integrated 10/100 Mbps Ethernet MAC with dedicated DMA channels and 128‑byte FIFOs; USB 2.0 Full Speed device port plus dual-port USB Host controller with on‑chip transceivers and dedicated FIFOs/DMA.
• Image & Multimedia Input  Image Sensor Interface supporting ITU‑R BT.601/656, 12‑bit data interface, programmable frame capture and preview path with scaler and YCbCr format support for camera and vision applications.
• Peripheral Set  Standard peripherals include USART, SPI, TWI, Timer Counters, Synchronous Serial Controller, ADC and MultiMedia Card Interface for common embedded I/O and storage tasks.
• System & Power Management  Six-layer 32‑bit bus matrix, reset controller, power management controller, clock generator with multiple PLLs, advanced interrupt controller and debug unit provide robust system control and optimization.
• Reliability & Grade  Industrial grade operation with specified operating temperature range of −40 °C to 85 °C and RoHS compliance.
• Package & Mounting  Package case listed as Die with surface mount mounting type for advanced integration and custom packaging workflows.

Typical Applications

• Industrial Networking  Embedded gateways and controllers that require 10/100 Mbps Ethernet and USB connectivity operating across an industrial temperature range.
• Imaging & Vision Systems  Camera capture, frame preview and processing chains that leverage the Image Sensor Interface and preview scaler for sensor interfacing and frame capture.
• Embedded Host Devices  Devices needing dual USB Host capability and USB device support for peripheral attachment, data logging or firmware updates.
• Memory-Intensive Embedded Systems  Applications that use external SDRAM, static memory or NAND Flash via the External Bus Interface for large data buffers or persistent storage.

Unique Advantages

• Integrated Ethernet and USB Subsystems: Built-in 10/100 MAC and USB device/dual-host controllers reduce external component count and simplify connectivity design.
• Flexible Memory Support: On-chip ROM/SRAM plus a versatile EBI that supports SDRAM, static memory and NAND Flash lets you tailor memory architecture to application needs.
• Camera Interface Ready: Dedicated Image Sensor Interface with 12‑bit support and preview/scaler path accelerates integration of vision and imaging features.
• Industrial Operating Range: Specified for −40 °C to 85 °C operation and RoHS compliant for reliable deployment in industrial environments.
• Comprehensive System Controls: Six-layer bus matrix, advanced interrupt controller, power management and debug features enable deterministic behavior and streamlined development.

Why Choose AT91SAM9G20B-W?

The AT91SAM9G20B-W combines a 400 MHz Arm926EJ-S core with integrated connectivity, image interface and a flexible external bus to address embedded designs that demand on-chip peripherals and robust system control. Its industrial temperature rating and comprehensive feature set make it suitable for networked, imaging and memory‑centric embedded products.

This part is well suited to developers and system designers who need a compact, integrated MPU platform that supports Ethernet, USB host/device, camera input and a wide range of peripheral interfaces while providing the system-level controllers and debug capabilities required for production designs.

Request a quote or submit an inquiry to obtain pricing and availability for the AT91SAM9G20B-W.