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

Manufacturer: Phison Electronics


PS2251-33 datasheet



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.



Controller Features

1. Support Host Interfaces : USB 2.0 & 1.1 Interface
(1) Fully compatible with USB Specification Version 2.0 & 1.1
(2) High speed 480Mbit/second supporting
(3) Full speed 12Mbit/second supporting
(4) 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.

Block Diagram :

PS2251-33 block diagram


PS2251-33 Datasheet PDF Download

PS2251-33 pdf


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Other data sheets are available within the file: PS2251