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USB2251i - Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

Download the USB2251i datasheet PDF. This datasheet also covers the USB2250 variant, as both devices belong to the same ultra fast usb 2.0 multi-slot flash media controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The Microchip USB2250/50i/51/51i is a USB 2.0 compliant, Hi-Speed mass storage class peripheral controller intended for reading and writing to more than 24 popular flash media formats from the CompactFlash® (CF), SmartMediaTM (SM), xD-Picture CardTM (xD)1, Memory Stick® (MS), Secure Digital (SD), an

Key Features

  • Single chip flash media controller with non-multiplexed interface for independent card sockets.
  • Flash Media Specification Revision Compliance - CompactFlash 4.1 - Secure Digital 2.0 - MultiMediaCard 4.2.
  • MMC Streaming Mode support - Memory Stick 1.43 - Memory Stick Pro Format 1.02 - Memory Stick Duo Format 1.10 - Memory Stick Pro-HG Duo Format 1.01 - xD-Picture Card 1.2 - SmartMedia 1.3 1.) xD-Picture Card not applicable to USB2251.  2009 - 2015 Microchip Technology.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (USB2250-Microchip.pdf) that lists specifications for multiple related part numbers.

More Datasheets from Microchip Technology

Part Number Description
USB2251 Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2250 Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2250i Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
USB2227 4th Generation USB 2.0 Flash Media Controller
USB2228 4th Generation USB 2.0 Flash Media Controller
USB2229 5th Generation Hi-Speed USB Flash Media and IrDA Controller
USB2230 5th Generation Hi-Speed USB Flash Media and IrDA Controller
USB2240 Ultra Fast USB 2.0 Multi-Format Controllers
USB2240I Ultra Fast USB 2.0 Multi-Format Controllers
USB2241 Ultra Fast USB 2.0 Multi-Format Controllers

Full PDF Text Transcription for USB2251i (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for USB2251i. For precise diagrams, tables, and layout, please refer to the original PDF.

View original datasheet text
USB2250/50i/51/51i Ultra Fast USB 2.0 Multi-Slot Flash Media Controller General Description The Microchip USB2250/50i/51/51i is a USB 2.0 compliant, Hi-Speed mass storage class peripheral controller intended for reading and writing to more than 24 popular flash media formats from the CompactFlash® (CF), SmartMediaTM (SM), xD-Picture CardTM (xD)1, Memory Stick® (MS), Secure Digital (SD), and MultiMediaCardTM (MMC) families. The USB2250/50i/51/51i is a fully integrated, single chip solution capable of ultra high performance operation. Average sustained transfer rates exceeding 35 MB/s are possible if the media and host can support those rates.