MCHPUSB2241-AEZG-06
Overview
The USB2241-AEZG-06 is a high-speed USB 2.0 flash media controller designed to interface Secure Digital (SD), MultiMediaCard (MMC), and Memory Stick (MS) formats to a USB host. It features an integrated 8051-based 8-bit microprocessor and 64KB of internal flash, enabling ultra-fast data transfer rates for external storage applications. Operating from a 3V to 3.6V supply, it consumes 135mA during high-speed operations in a compact 36-pin QFN package.
Why Choose This Part
The controller uses Microchip's Ultra Fast USB 2.0 technology to maximize throughput while maintaining low power consumption of 350uA in standby mode. Its integrated 8051 core and 14KB RAM allow for efficient handling of flash media protocols without taxing the host CPU. The 6x6mm QFN package provides a high-density solution for space-constrained designs needing robust file transfer performance.
Applications
Key Specifications
Getting Started
Implementation requires bypassing the 3.3V supply with low-ESR capacitors as specified in the reference design. Engineers can utilize the I2C interface for external EEPROM configuration or use the default internal ROM settings for standard flash media profiles. Reference layouts emphasize short trace lengths for the 480Mbps USB differential pairs to maintain signal integrity.
