memory products - Al Kossow's Bitsavers

~ SGS-1HOMSON,."'! I. ~u©oo@rn[brn©'j]'oo@~u©~MK4503{N, K)-50/65/80/10/12/15/20• FIRST-IN, FIRST-OUT MEMORY BASEDARCHITECTURE• FLEXIBLE 2048 x 9 ORGANIZATION• LOW POWER HCMOS TECHNOLOGY• ASYNCHRONOUS AND SIMULTANEOUSREADIWRITE• BIDIRECTIONAL APPLICATIONS• FULLY EXPANDABLE BY WORD WIDTH ORDEPTH• EMPTY AND FULL WARNING FLAGS• RETRANSMIT CAPABILITY• HIGH PERFORMANCE• HALF FULL FLAG IN SINGLE DEVICEMODERIWPart No. Access Time Cycle TimeMK4503-50 50 ns 65nsMK4503-65 65 ns 80 nsMK4503-80 80 ns 100 nsMK4503-10 100 ns 120 nsMK4503-12 120 ns 140 nsMK4503-15 150 ns 175 nsMK4503-20 200 ns 235 nsPIN NAMESWR= Write= ReadXI = Expansion InXO/HF = Expansion OutHalf Full FlagRS = Reset FF = Full FlagFLIRT = Fi rst Loadl EF = Empty FlagRetransmit Vee = 5 Volts0 = Data In GND = GroundQ = Data Out NC = No ConnectionDESCRIPTIONThe MK4503 is a member of the BiPORT'" MemorySeries, which utilizes special two-port cell techniql1es.Specifically, this device implements a First­In, First-Out algorithm, featuring asynchronous2048 x 9 CMOS BiPORT FIFO,,NDIP-2a:(Plastic Package)PRELIMINARY DATAKPLCC32(Plastic Chip Carrier)FIGURE 1. PIN CONNECTIONSVi0803 302 401 5DO 6Xi 7FF 800 901 1002 1103 1208 13GNO 14S•28 Pin Plastic DIPi!! 1;0 lit >8 11 !l3 2 f32313032 Pin PLCCTop View14 15 1& 17 18 19 2028 Vee27 0426 0525 0624 D723 FL/iii'22 As21 EF20 XCIHi'19 0718 0617 0516 0415 IiJune 19881/16413