MF34M1-J9CATXX Datasheet | Mitsubishi Electric

DESCRIPTION Mitsubishi’s Static RAM cards provide large memory capacities on a device approximately the size of a credit card (85.6mm×54mm×3.3mm). The cards use a 8/16 bit data-bus. Available in 64KB, 128KB, 256KB, 512KB, 1 MB, 2 MB and 4 MB capacities, Mitsubishi’s SRAM cards conform to the PC Card Standard. Mitsubishi achieved high density memory, while maintaining credit size by using a thin small outline packaging technology (TSOP). The TSOP surpasses conventional memory card chip-on-board packaging technology where larger, surface-mount devices result in a tradeoff between card size and optimum memory density. The TSOP, with external leads spaced on 20-mil centers, is over four times smaller than standard equivalent pin count surface-mount packages. This allows up to 8 memory ICs (plus interface circuitry) to be mounted in a card that in only 3.3mm thick. 4. PRODUCT LIST Item Type name MF365A-J9CATXX MF3129-J9CATXX MF3257-J9CATXX MF3513-J9CATXX MF31M1-J9CATXX MF32M1-J9CATXX MF34M1-J9CATXX Memory capacity 64KB 128KB 256KB 512KB 1MB 2MB 4MB 2. FEATURES n Uses TSOP (Thin Small Outline Package) to achieve very high memory density coupled with high reliability, without enlarging card size n Electrostatic discharge protection to 15k V n Buffered interface n Write protect switch n68pin n Built-in auxiliary battery 3. APPLICATIONS n Office automation n Data munication nputers n Industrial n Telemunications n Consumer Data Bus width(bits) Attribute memory Auxiliary battery 8/16 MITSUBISHI ELECTRIC 1/14 Apr. 1999 Rev. 1.1 MITSUBISHI MEMORY CARD STATIC RAM CARDS 5. SUMMARY MF3XXX-J9CATXX series is the Static RAM cards which has 8/16 bit changeable data-bus width. The card has a replaceable lithium main battery to maintain data in memory and has an auxiliary battery to maintain data in memory while the main battery is replaced. When the card is not use or the supply voltage drops, the main battery will automatically maintain data in memory. 6. FUNCTIONAL...