P800/P802

White Paper, January 2003

Memory Stick® Duo®

Memory Stick® provides a convenient way of adding storage and other functions to a wide range of devices. The P800 supports Memory Stick® Duo®, a miniature version of the Memory Stick series which is just one third the volume of standard Memory Sticks. Memory Stick Duo starts at 8Mbytes and has a roadmap which foresees sizes up to 1Gbyte in the future. A 16 Mbyte Memory Stick Duo is supplied and sizes up to 128Mbyte are supported.

Via a Memory Stick Duo Adaptor, Memory Stick Duo can be plugged into any standard size Memory Stick slot. The two types have full electrical and file system compatibility.

Physical and Electrical Properties

Memory Stick Duo is very space-efficient. It is 20mm wide, 1.6mm high and 31mm deep, having volume 992 mm3. Memory Stick Duo weighs 2 grams.

The electrical contact consists of 10 pins in a structure which prevents direct touch, providing high reliability. A serial protocol is defined for Memory Stick. This is optimised for the larger capacity memories that will be available in the future. Current maximum transfer speed is 2.45Mbyte/second to read data and 1.8Mbyte/second when writing data. An erasure prevention switch protects important content and data.

PC and Apple Mac Support

PCs and Apple Macs may be enabled for Memory Stick via built-in Memory Stick slots, Floppy Disk adaptors, PC Card adaptors, USB adaptors and even a Memory Stick enabled mouse. (Memory Stick Duo Adaptor required)

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