Phison Electronics Corporation
No.1, Qun Yi Road, Jhunan, Miaoli, Taiwan 350, R.O.C.
Tel : +886-37-586-896 Fax : +886-37-587-868
A. General Description
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.
By using this single chip solution, it will reduce a lot of efforts which was needed
from R/D to production, as well as simplifying the RMA problems. With the USB
plug & play function and driver-less solution with most of the operating systems,
this solution provides not only easy to install, but also fast, easy to use and low
cost way for user.
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