memory products - Al Kossow's Bitsavers

t== SGS-THOMSON.., L [R'A]o©oo@rn[brn©'U'~@~o©~MK48Z02/12(B)·12/15120/252K x 8 ZEROPOWERTM RAM• PREDICTED WORST CASE BATTERY LIFE OF11 YEARS @ ?OoC• DATA RETENTION IN THE ABSENCE OFPOWER• DATA SECURITY PROVIDED BY AUTOMATICWRITE PROTECTION DURING POWERFAILURE• +5 VOLT ONLY READIWRITE• CONVENTIONAL SRAM WRITE CYCLES• FULL CMOS-440 mW ACTIVE; 5.5 mW STANDBY.24-PIN DUAL IN LINE PACKAGE, JEDECPINOUTS• READ-CYCLE TIME EQUALS WRITE-CYCLETIME• LOW-BATTERY WARNING• TWO POWER-FAIL DESELECT TRIP POINTSAVAILABLEMK48Z02 4.75V~VPFD~4.50VMK48Z12 4.50V~VPFD~4.20VR/WPart Number Access Time Cycle TimeMK48ZX2-12 120 ns 120 nsMK48ZX2-15 150 ns 150 nsMK48ZX2-20 200 ns 200 nsMK48ZX2-25 250 ns 250 nsTRUTH T~BLE (MK48Z02/12)Vcc E ~ W MODE DQVIH 'X X Deselect High-ZVcc (Min) VIL VIL VIH Read DOUTVIL VIH VIH Read High-ZVSODeselectsVso X X X Battery High-ZBack-upPIN NAMESBDIP-24(Plastic with Battery Top Hat)FIGURE 1. PIN CONNECTIONSA7 1 24 VceA. 2 23 AsAs 3 22 A9A. 4 21 ViA3 5 20 GA2 6 19 Al0Al 7 18 EAo 8 17 0°7000 9 16 DO.0°1 10 15 DOsDQ2 11 14 DQ.GND 12 13 DQ3Ao' Al0 Address Inputs VccSystem Power (+5 V)E Chip Enable W Write EnableGND Ground G Output EnableDOo-D0 7 Data In/Data OutJune 19881/11277