MCHPUSB2244-AEZG-06
Overview
The USB2244-AEZG-06 is a high-speed USB 2.0 flash media controller designed to interface Secure Digital (SD) and MultiMediaCard (MMC) storage to a USB host. It features an integrated 8051-based microprocessor core and internal voltage regulators to simplify the bill of materials for card reader designs. The controller is optimized for high performance with a 60 MHz clock and dedicated DMA engines for efficient data throughput.
Why Choose This Part
It integrates a card power FET and short circuit protection, reducing the need for external power management components. The device supports a single 3.3V supply and utilizes an internal regulator to provide the 1.8V core voltage, which simplifies PCB power routing and reduces board area.
Applications
Key Specifications
Getting Started
Designers should refer to the Microchip EVB-USB2244 evaluation board for reference schematics and PCB layout guidelines regarding the 24 MHz crystal circuit. Configuration can be managed via an external I2C EEPROM or through USB vendor-specific commands to customize descriptors and string indexes.
