USB2241-AEZG-05

Controllers Overview

The USB2241-AEZG-05 is a USB 2.0 compliant, Hi-Speed bulk only mass storage class peripheral controller designed for reading and writing to flash media from the Secure Digital (SD) and Memory Stick (MS) families. It features a low pin count 36-pin QFN package measuring 6x6 mm with a 0.50 mm pitch. The device integrates an 8051 8-bit microprocessor running at 60 MHz with 64 KB ROM and 14 KB RAM. It supports a single external 3.3 V supply source, utilizing internal regulators to provide 1.8 V core voltage.

Controllers Feature Summary

• Integrated hardware-controlled data flow architecture for self-mapped media
• Pipelined hardware support for access to non-self-mapped media
• On-board 24 MHz crystal driver circuit with optional external clock input
• Internal card power FET with fold-back short circuit protection

Controllers Applications

• Flash media card readers/writers
• Desktop and mobile PCs
• Printers
• Consumer A/V and media players/viewers

Controllers Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm temperature range and package variations. Ensure compatibility with required SD and Memory Stick formats before procurement. Confirm RoHS compliance status as per the latest datasheet revision.

Controllers Selection Notes

Select this component for designs requiring dedicated SD and Memory Stick interface support without xD-Picture Card capability. Consider the integrated 8051 processor for custom firmware implementation. Evaluate the 36-pin QFN footprint for space-constrained PCB layouts.

Controllers Part Context

This part belongs to the USB224x family of ultra-fast USB 2.0 multi-format flash media controllers. It shares the same physical package and general architecture with variants like the USB2240 and USB2244 but differs in supported media interfaces, specifically excluding xD-Picture Card support found in other models.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.