Os motores de busca de Datasheet de Componentes eletrônicos |
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LC7874E Folha de dados(PDF) 4 Page - Sanyo Semicon Device |
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LC7874E Folha de dados(HTML) 4 Page - Sanyo Semicon Device |
4 / 22 page No. 5521-4/22 LC7874E Parameter Symbol Conditions Ratings Unit min typ max Random read/write cycle time tRC 250 ns Page mode cycle time tPC 130 ns RAS precharge time tRP 100 ns RAS pulse width tRAS 120 ns RAS pulse width (page mode) tRASP 18000 ns RAS hold time tRSH 60 ns CAS hold time tCSH 120 ns CAS pulse width tCAS 60 ns CAS precharge time tCPN 50 ns CAS precharge time tCP (In page mode) 50 ns Row address setup time tASR 100 ns Row address hold time tRAH 50 ns Column address setup time tASC 0 ns Column address hold time tCAH 50 ns Read command setup time tRCS 150 ns Read command hold time tRCH (Referenced to CAS ) 120 ns Read command hold time tRRH (Referenced toRAS) 120 ns Write command setup time tWCS 100 ns Write command hold time tWCH 50 ns Write command pulse width tWP 150 ns Write data setup time tDS 100 ns Write data hold time tDH 100 ns CAS setup time tCSR (CAS before RAS) 50 ns CAS hold time tCHR (CAS before RAS) 50 ns RAS precharge CAS active time tRPC 50 ns Read data setup time tRDS 20 ns Read data hold time tRDH 10 ns Refresh time tREF 3.5 ms Timing Characteristics (DRAM Access Timing) at Ta = 25°C, VDD = 5 V |
Nº de peça semelhante - LC7874E |
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Descrição semelhante - LC7874E |
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