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LC322271M Scheda tecnica(PDF) 5 Page - Sanyo Semicon Device |
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LC322271M Scheda tecnica(HTML) 5 Page - Sanyo Semicon Device |
5 / 29 page Continued from preceding page. No. 5085-5/29 LC322271J, M, T-70/80 -70 -80 Parameter Symbol min max min max Unit Note RAS hold time tRSH 20 30 ns CAS hold time tCSH 70 80 ns CAS pulse width tCAS 20 10000 30 10000 ns RAS to CAS delay time tRCD 25 50 25 50 ns 14 RAS to column address delay time tRAD 17 35 17 35 ns 15 CAS to RAS precharge time tCRP 10 10 ns CAS precharge time tCP 10 10 ns Row address setup time tASR 0 0 ns Row address hold time tRAH 12 12 ns Column address setup time tASC 0 0 ns Column address hold time tCAH 15 20 ns Column address hold time referenced to RAS tAR 50 60 ns Column address to RAS lead time tRAL 40 45 ns Read command setup time tRCS 0 0 ns Read command hold time referenced to CAS tRCH 0 0 ns 11 Read command hold time referenced to RAS tRRH 0 0 ns 11 Write command hold time tWCH 15 15 ns Write command hold time referenced to RAS tWCR 50 60 ns Write command pulse width tWP 15 15 ns Write command to RAS lead time tRWL 25 25 ns Write command to CAS lead time tCWL 20 20 ns Data input setup time tDS 0 0 ns 12 Data input hold time tDH 15 20 ns 12 Data input hold time referenced to RAS tDHR 50 60 ns Refresh time tREF 8 8 ms Write command setup time tWCS 0 0 ns 13 CAS to UW, LW delay time tCWD 50 50 ns 13 RAS to UW, LW delay time tRWD 100 100 ns 13 Column address to UW, LW delay time tAWD 65 65 ns 13 CAS precharge UW, LW delay time for fast page mode tCPWD 70 70 ns 13 cycle only CAS setup time for CAS-before-RAS tCSR 10 10 ns CAS hold time for CAS-before-RAS tCHR 15 15 ns RAS precharge CAS active time tRPC 10 10 ns CAS precharge time for CAS-before-RAS counter test tCPT 40 40 ns RAS hold time referenced to OE tROH 15 15 ns OE access time tOEA 20 25 ns 9 OE delay time tOED 15 15 ns OE output buffer turn-off delay time tOEZ 0 0 15 ns 10 OE command hold time tOEH 20 20 ns Data input to CAS delay time tDZC 0 0 ns 16 Data input to OE delay time tDZO 0 0 ns 16 Masked write setup time tMCS 0 0 ns Masked write hold time referenced to RAS tMRH 0 0 ns Masked write hold time referenced to CAS tMCH 0 0 ns |
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