PS2251-33 Datasheet PDF - USB 2.0 Flash Controller

Part Number : PS2251-33

Function : USB 2.0 Flash Controller

Package : 48-pins / 64-pins QFP Package

Manufacturers : Phison Electronics

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Description :

PHISON’s PS2251-33 USB-to-Flash micro-controller supports the latest 5Xnm/4Xnm 8K page flash memories and 3 bit-per-cell flash memories. It is the ideal solution to support readyboost feature in Windows Vista. The entire firmware is upgradable thanks to the addition of Programmable RAM, allowing host design flexibility. This chip is specially designed for USB flash disk, USB Disk-On-Module, and embedded applications found in PC motherboard, UMPC, and other portable devices.

Pinout

Controller Features

1. Support Host Interfaces : USB 2.0 & 1.1 Interface
Fully compatible with USB Specification Version 2.0 & 1.1
High speed 480Mbit/second supporting
Full speed 12Mbit/second supporting
Support one CONTROL transfer, one INTERRUPT transfer and two BULK transfer

2. Support In-System Programming through USB Port
3. Buffer SRAM : 16 buffers for performance improvement
4. Build-in regulator
5. USB bus-powered capability.
6. Power Saving implemented.