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HYMD212G726ALS4M-K Datasheet(PDF) 9 Page - Hynix Semiconductor |
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HYMD212G726ALS4M-K Datasheet(HTML) 9 Page - Hynix Semiconductor |
9 / 16 page HYMD212G726A(L)S4M-M/K/H/L Rev. 0.2/May. 02 9 AC CHARACTERISTICS (AC operating conditions unless otherwise noted) Parameter Symbol DDR266(2-2-2) DDR266A DDR266B DDR200 Uni t Note Min Max Min Max Min Max Min Max Row Cycle Time tRC 60 - 65 - 65 - 70 - ns Auto Refresh Row Cycle Time tRFC 75 - 75 - 75 - 80 - ns Row Active Time tRAS 45 120K 45 120K 45 120K 50 120K ns Active to Read with Auto Precharge Delay tRAP 15 - 20 - 20 - 20 - ns 16 Row Address to Column Address Delay tRCD 15 - 20 - 20 - 20 - ns Row Active to Row Active Delay tRRD 15 - 15 - 15 - 15 - ns Column Address to Column Address Delay tCCD 1- 1 - 1 - 1 - CK Row Precharge Time tRP 15 - 20 - 20 - 20 - ns Write Recovery Time tWR 15 - 15 - 15 - 15 - ns Write to Read Command Delay tWTR 1- 1 - 1 - 1 - CK Auto Precharge Write Recovery + Precharge Time tDAL (tWR/tCK) + (tRP/tCK) - (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 7.5 12 8.0 12 ns CL = 2 7.5 12 7.5 12 10 121012 ns Clock High Level Width tCH 0.45 0.55 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 0.45 0.55 CK Data-Out edge to Clock edge Skew tAC -0.75 0.75 -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 -0.75 0.75 -0.8 0.8 ns DQS-Out edge to Data-Out edge Skew tDQSQ - 0.5 - 0.5 - 0.5 - 0.6 ns Data-Out hold time from DQS tQH tHP -tQHS - tHPmin -tQHS - tHPmin -tQHS - tHPmin -tQHS -ns 1, 10 Clock Half Period tHP min (tCL,tCH) - min (tCL,tCH) - min (tCL,tCH) - min (tCL,tCH) -ns 1,9 Data Hold Skew Factor tQHS - 0.75 - 0.75 - 0.75 - 0.75 ns 10 Valid Data Output Window tDV tQH-tDQSQ tQH-tDQSQ tQH-tDQSQ tQH-tDQSQ ns Data-out high-impedance window from CK, /CK tHZ -0.75 0.75 -0.75 0.75 -0.75 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 -0.75 0.75 -0.8 0.8 ns 17 |
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