SanDisk SDMB-16-771 Product Manual - Page 8

MultiMediaCard Product Manual 1.1 Scope 1.2 Product Models This document describes the key features and The MultiMediaCard is available in t h e specifications of the MultiMediaCard, as well as capacities shown in the following table: the information required to interface this product to a host system. Table 1-1 MultiMediaCard Capacities Model No. Capacities SDMB-4 4.0 MB SDMB-8 8.0 MB SDMB-16 16.0 MB SDMB-32 32.1 MB 1.3 System Features • Up to 32 Mbytes of data storage • MultiMediaCard protocol compatible • Supports SPI Mode • Targeted for portable and stationary applications • Voltage range - Communication: 2.0 - 3.6V, Memory Access: 2.7 - 3.6V • Maximum data rate with up to 10 cards • Correction of memory field errors • Built-in write protection features (permanent and temporary) • Comfortable erase mechanism • Variable clock rate 0 - 20 Mhz • Multiple cards stackable on a single physical bus The performance of the communication channel is described in the table below: Table 1-2 MultiMediaCard/SPI Comparison MultiMediaCard Three-wire serial data bus (Clock, command, data) Up to 64k cards addressable by the bus protocol Easy card identification Error-protected data transfer Sequential and single/multiple block oriented data transfer SPI Three-wire serial data bus (Clock, dataIn, dataOut) + card specific CS signal. Card selection via a hardware CS signal Not available Optional. A non protected data transfer mode is available. Single block read/write 8 SanDisk MultiMediaCard Product Manual Rev. 2 © 2000 SANDISK CORPORATION