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HYMD264M726A8-K Datasheet(PDF) 11 Page - Hynix Semiconductor |
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HYMD264M726A8-K Datasheet(HTML) 11 Page - Hynix Semiconductor |
11 / 19 page HYMD264M726A(L)8-J/M/K/H/L Rev. 0.1/Apr. 02 11 AC CHARACTERISTICS (AC operating conditions unless otherwise noted) <DDR266A/B, DDR200> Parameter Symbol DDR266A DDR266B DDR200 Unit Note Min Max Min Max Min Max Row Cycle Time tRC 65 - 65 - 70 - ns Auto Refresh Row Cycle Time tRFC 75 - 75 - 80 - ns Row Active Time tRAS 45 120K 45 120K 50 120k ns Active to Read with Auto Precharge Delay tRAP 20 - 20 - 20 - ns 16 Row Address to Column Address Delay tRCD 20 - 20 - 20 - ns Row Active to Row Active Delay tRRD 15 - 15 - 15 - ns Column Address to Column Address Delay tCCD 1-1 - 1 - CK Row Precharge Time tRP 20 - 20 - 20 - ns Write Recovery Time tWR 15 - 15 - 15 - ns Write to Read Command Delay tWTR 1-1 - 1 - CK Auto Precharge Write Recovery + Precharge Time tDAL (tWR/tCK) + (tRP/tCK) - (tWR/tCK) + (tRP/tCK) - (tWR/tCK) + (tRP/tCK) -CK 15 System Clock Cycle Time CL = 2.5 tCK 7.5 12 7.5 12 8.0 12 ns CL = 2 7.5 12 10 12 10 12 ns Clock High Level Width tCH 0.45 0.55 0.45 0.55 0.45 0.55 CK Clock Low Level Width tCL 0.45 0.55 0.45 0.55 0.45 0.55 CK Data-Out edge to Clock edge Skew tAC -0.75 0.75 -0.75 0.75 -0.8 0.8 ns DQS-Out edge to Clock edge Skew tDQSCK -0.75 0.75 -0.75 0.75 -0.8 0.8 ns DQS-Out edge to Data-Out edge Skew tDQSQ - 0.5 - 0.5 - 0.6 ns Data-Out hold time from DQS tQH tHP -tQHS - tHP -tQHS - tHP -tQHS -ns 1, 10 Clock Half Period tHP min (tCL,tCH) - min (tCL,tCH) - min (tCL,tCH) -ns 1,9 Data Hold Skew Factor tQHS - 0.75 - 0.75 - 0.75 ns 10 Valid Data Output Window tDV tQH-tDQSQ tQH-tDQSQ tQH-tDQSQ ns Data-out high-impedance window from CK, /CK tHZ -0.75 0.75 -0.75 0.75 -0.8 0.8 ns 17 Data-out low-impedance window from CK, /CK tLZ -0.75 0.75 -0.75 0.75 -0.8 0.8 ns 17 Input Setup Time (fast slew rate) tIS 0.9 - 0.9 - 1.1 - ns 2,3,5,6 Input Hold Time (fast slew rate) tIH 0.9 - 0.9 - 1.1 - ns 2,3,5,6 Input Setup Time (slow slew rate) tIS 1.0 - 1.0 - 1.1 - ns 2,4,5,6 Input Hold Time (slow slew rate) tIH 1.0 - 1.0 - 1.1 - ns 2,4,5,6 Input Pulse Width tIPW 2.2 2.2 2.5 - ns 6 Write DQS High Level Width tDQSH 0.35 - 0.35 - 0.35 - CK |
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