MF34M1-LZCATXX 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. The devices use a replaceable lithium battery to maintain data. Available in 64K byte-4M byte capacities, Mitsubishi’s Static RAM cards are available with a 68-pin, two-piece connector. 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 n Attribute memory n68pin 3. APPLICATIONS n Office automation n Data munication nputers n Industrial n Telemunications n Consumer 4. PRODUCT LIST Item Type name MF365A-LZCATXX MF3129-LZCATXX MF3257-LZCATXX MF3513-LZCATXX MF31M1-LZCATXX MF32M1-LZCATXX MF34M1-LZCATXX Memory capacity 64KB 128KB 256KB 512KB 1MB 2MB 4MB Data Bus width(bits) Attribute memory Auxiliary battery 8/16 8KB E2PROM MITSUBISHI ELECTRIC 1/16 Apr. 1999 Rev. 1.1 MITSUBISHI MEMORY CARD STATIC RAM CARDS 5. SUMMARY MF3XXX-LZCATXX series is the Static RAM cards which has 8/16 bit changeable data-bus width. The card has a replaceable lithium battery to maintain data in memory. When the card is not use or the supply voltage drops, the battery will automatically maintain data in memory. 6. FUNCTIONAL DESCRIPTION The function of the card is determined by the bination of the following five control signals, REG#, CE1#, CE2#, OE#, WE#; active low signals. (Please refer to section 10 FUNCTION TABLE on page 5) (1)MON MEMORY FUNCTION When REG# signal is high level, the mon memory area is selected. (a)READ MODE To read, WE# is set high level and CE1# or CE2# is set low level and the memory address is applied at inputs A0-A21(4MB). Setting OE# low level executes the reading with output at data-bus. It is available to make the following functions according to the bination of CE1# and CE2#. When CE1# is set low level and...