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MC-4532CD647PF-A75 Folha de dados(PDF) 9 Page - NEC |
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MC-4532CD647PF-A75 Folha de dados(HTML) 9 Page - NEC |
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9 / 16 page  9 MC-4532CD647 Data Sheet M14276EJ2V0DS00 Asynchronous Characteristics Parameter Symbol -A 75 Unit Note MIN. MAX. ACT to REF/ACT command period (operation) tRC 67.5 ns REF to REF/ACT command period (refresh) tRC1 67.5 ns ACT to PRE command period tRAS 45 120,000 ns PRE to ACT command period tRP 20 ns Delay time ACT to READ/WRITE command tRCD 20 ns ACT(one) to ACT(another) command period tRRD 15 ns Data-in to PRE command period tDPL 8ns Data-in to ACT(REF) command /CAS latency = 3 tDAL3 1CLK+22.5 ns 1 period (Auto precharge) /CAS latency = 2 tDAL2 1CLK+20 ns 1 Mode register set cycle time tRSC 2CLK Transition time tT 0.5 30 ns Refresh time (4,096 refresh cycles) tREF 64 ms Note This device can satisfy the tDAL3 spec of 1CLK+20 ns for up to and including 125 MHz operation. 5 |
Nº de peça semelhante - MC-4532CD647PF-A75 |
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Descrição semelhante - MC-4532CD647PF-A75 |
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