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KMM372F803BK Datasheet(PDF) 5 Page - Samsung semiconductor |
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KMM372F803BK Datasheet(HTML) 5 Page - Samsung semiconductor |
5 / 20 page DRAM MODULE KMM372F80(8)3BK/BS AC CHARACTERISTICS (0 °C≤TA≤70°C, VCC=3.3V±0.3V. See notes 1,2.) Parameter Symbol -5 -6 Unit Note Min Max Min Max Column address to W delay time tAWD 45 53 ns 7 CAS precharge time to W delay time tCPWD 47 58 ns CAS setup time(CAS-before-RAS refresh) tCSR 10 10 ns 13 CAS hold time(CAS-before-RAS refresh) tCHR 8 8 ns 13 RAS to CAS precharge time tRPC 3 3 ns 13 Access time from CAS precharge tCPA 33 40 ns 3,13 Hyper page cycle time tHPC 20 25 ns 12 Hyper page read-modify-write cycle time tHPRWC 70 77 ns 12 CAS precharge time(Hyper page cycle) tCP 7 10 ns RAS pulse width (Hyper page cycle) tRASP 50 200K 60 200K ns RAS hold time from CAS precharge tRHCP 35 40 ns 13 W to RAS precharge time(C-B-R refresh) tWRP 15 15 ns 13 W to RAS hold time(C-B-R refresh) tWRH 8 8 ns 13 OE access time tOEA 18 20 ns 13 OE to data delay tOED 15 18 ns 13 Output buffer turn off delay time from OE tOEZ 8 18 8 18 ns 13 OE command hold time tOEH 5 5 ns Output data hold time(C-B-R refresh) tDOH 10 10 ns 13 Output buffer turn off delay time from RAS tREZ 3 13 3 13 ns 6,11 Output buffer turn off delay time from W tWEZ 8 18 8 18 ns 6,13 W to data delay tWED 20 20 ns 13 OE to CAS hold time tOCH 5 5 ns CAS hold time to OE tCHO 5 5 ns OE precharge time tOEP 5 5 ns W pulse width (Hyper page cycle) tWPE 5 5 ns PDE to Valid PD bit tPD 10 10 ns PDE to PD bit Inactive tPDOFF 2 7 2 7 ns Present Detect Read Cycle |
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