Dynamic Shift Registers - Bitsavers - Trailing-Edge

U)co',f:to...G):2U)coCJEG)...U)>enU)G)''::::oEG)~U)U)G)(,)(,)«Eo"CCtoa:eno~(,)EtoC>Coit)IZ«r _,'".,," (INPUTlCOUNn~INPUTFIGURE 5. Main Memory Module with Conventional 1103·Type MOS RAMsTABLE 1: Comparison of Major Characteristics of MM5260 and 1103MM5260 1103Organization lk x 1 lk xlChip Select Ves VesI nput Data Levels TTL High 1+20V)Output Data Levels TTL Low 18001lA)Common 110 Bus Ves NoPower Supplies +5, -12V +20, +16. +5, -5Package Pins 16 18Access Time 350 ns 300-390 nsRead Cycle Time 450ns 540 nsWrite Cycle Time 600ns 580 nsRefresh Intervals 2ms 2msPower Dissipation During Access 400mW 300mWStandby Power 75mW 75mWTABLE 2: Components in Typical4k x 16 Memory ModuleMM5260 1103UNITS UNITSMOS RAM Packages 64 64Total for Storage 64 64Interface and Control DevicesDM8123 Quad Data Selector 2 2DM7442 BCD-to-Decimal Decoder 1 1MH0026 Clock Drivers 3MH0027 Clock Drivers 18DM74451 Power Translator 18DM8093iDM8094 Bus Buffers 10 4DM7402 Gates 2DM7400 Gates 2 2DM7404 Gates 5DM7408 Gates 1DM7420 Gates 1DM8281 Counter 1 1DM86L 76 Counter 2 2DM74L73 Flip-Flops 1 1DM9601 Monostable Multivibrator 3 4LM7524 Dual Sense Amplifiers 8Total for External Parts 26 69248