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M5M417400CTP-7S Datasheet(PDF) 2 Page - Mitsubishi Electric Semiconductor |
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M5M417400CTP-7S Datasheet(HTML) 2 Page - Mitsubishi Electric Semiconductor |
2 / 22 page MITSUBISHI LSIs M5M417400CJ,TP-5,-6,-7,-5S,-6S,-7S FAST PAGE MODE 16777216-BIT (4194304-WORD BY 4-BIT) DYNAMIC RAM 2 FUNCTION The M5M417400CJ,TP provide, in addition to normal read, write, and read-modify-write operations, a number of other functions, e.g., fast page mode, RAS-only refresh, and delayed-write. The input conditions for each are shown in Table 1. Table 1 Input conditions for each mode Note: ACT: active, NAC: nonactive, DNC: don’t care, VLD: valid, IVD: invalid, APD: applied, OPN: open BLOCK DIAGRAM Operation Inputs Input/Output Refresh Remark RAS CAS W OE Row address Column address Input Output Read ACT ACT NAC ACT APD APD OPN VLD YES Fast page mode identical Write (Early write) ACT ACT ACT DNC APD APD VLD OPN YES Write (Delayed write) ACT ACT ACT DNC APD APD VLD IVD YES Read-modify-write ACT ACT ACT ACT APD APD VLD VLD YES RAS-only refresh ACT NAC DNC DNC APD DNC DNC OPN YES Hidden refresh ACT ACT NAC ACT APD DNC OPN VLD YES Self refresh ACT ACT NAC DNC DNC DNC DNC OPN YES CAS before RAS refresh ACT ACT NAC DNC DNC DNC DNC OPN YES Stand-by NAC DNC DNC DNC DNC DNC DNC OPN NO |
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