PS2251-33 PDF Datasheet – USB 2.0 Flash Controller

Part Number: PS2251-33

Function: USB 2.0 Flash Controller

Package: TQFP 64 Pin , 48-pins Type

Manufacturer: Phison Electronics Corporation


PS2251-33 pdf datasheet


The PHISON’s PS2251-33 micro-controller supports USB 2.0 & 1.1 and interface to NAND Flash Memory. This chip is specially designed for portable storage device or build-in to the PC / Notebook / IA system. It is pin-to-pin compatible to previous controllers. (eg : PS2136 & PS2231 & PS2232…..etc). PS2251-33 controller implements with PRAM (program RAM) architecture, which
can upgrade firmware code anytime if required. This is very helpful for time-to-market & Mass Production solution. […]


1. Support Host Interfaces : USB 2.0 & 1.1 Interface

2. Fully compatible with USB Specification Version 2.0 & 1.1

3. High speed 480Mbit/second supporting

4. Full speed 12Mbit/second supporting

5. Support one CONTROL transfer, one INTERRUPT transfer and two BULK transfer

PS2251-33 Datasheet