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KMM372F804BS Folha de dados(PDF) 4 Page - Samsung semiconductor |
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KMM372F804BS Folha de dados(HTML) 4 Page - Samsung semiconductor |
4 / 20 page DRAM MODULE KMM372F804BS CAPACITANCE (TA = 25 °C, f = 1MHz) Item Symbol Min Max Unit Input capacitance[A0, B0, A1 - A11] Input capacitance[W0, W2, OE0, OE2] Input capacitance[RAS0 - RAS3] Input capacitance[CAS0, 1,4,5] Input/Output capacitance[DQ0 - 71] CIN1 CIN2 CIN3 CIN4 CDQ - - - - - 20 20 31 20 24 pF pF pF pF pF Test condition : Vih/Vil=2.2/0.7V, Voh/Vol=2.0/0.8V, output loading CL=100pF Parameter Symbol -5 -6 Unit Note Min Max Min Max Random read or write cycle time tRC 84 104 ns Read-modify-write cycle time tRWC 128 153 ns Access time from RAS tRAC 50 60 ns 3,4,10 Access time from CAS tCAC 18 20 ns 3,4,5,13 Access time from column address tAA 30 35 ns 3,10,13 CAS to output in Low-Z tCLZ 8 8 ns 3,13 OE to output in Low-Z tOLZ 8 8 ns 3,13 Output buffer turn-off delay from CAS tCEZ 8 18 8 18 ns 6,11,13 Transition time(rise and fall) tT 1 50 1 50 ns 2 RAS precharge time tRP 30 40 ns RAS pulse width tRAS 50 10K 60 10K ns RAS hold time tRSH 13 15 ns 13 CAS hold time tCSH 36 38 ns 13 CAS pulse width tCAS 8 10K 10 10K ns RAS to CAS delay time tRCD 15 32 18 40 ns 4,13 RAS to column address delay time tRAD 10 20 13 25 ns 10,13 CAS to RAS precharge time tCRP 10 10 ns 13 Row address set-up time tASR 5 5 ns 13 Row address hold time tRAH 5 8 ns 13 Column address set-up time tASC 0 0 ns 14 Column address hold time tCAH 7 10 ns 14 Column address to RAS lead time tRAL 30 35 ns 13 Read command set-up time tRCS 0 0 ns Read command hold referenced to CAS tRCH 0 0 ns 8 Read command hold referenced to RAS tRRH -2 -2 ns 8,13 Write command set-up time tWCS 0 0 ns 7 Write command hold time tWCH 7 10 ns Write command pulse width tWP 7 10 ns Write command to RAS lead time tRWL 13 15 ns 13 Write command to CAS lead time tCWL 7 10 ns 17 Data set-up time tDS -2 -2 ns 9,13 Data hold time tDH 13 15 ns 9,13 Refresh period tREF 64 64 ms CAS to W delay time tCWD 33 38 ns 7,16 RAS to W delay time tRWD 68 82 ns 7,13 AC CHARACTERISTICS (0 °C≤TA≤70°C, VCC=3.3V±0.3V. See notes 1,2.) |
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Descrição semelhante - KMM372F804BS |
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