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HY57V56820CT Datasheet(PDF) 8 Page - Hynix Semiconductor |
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HY57V56820CT Datasheet(HTML) 8 Page - Hynix Semiconductor |
8 / 12 page HY57V56820C(L)T Rev. 0.4 / July 2003 8 AC CHARACTERISTICS II Note : 1. A new command can be given tRRC after self refresh exit Parameter Symbol -6 -K -H -8 -P -S Unit Note Min Max Min Max Min Max Min Max Min Max Min Max RAS Cycle Time Operation tRC 60 - 60 - 65 - 68 - 70 - 70 - ns Auto Refresh tRRC 60- 60 - 65- 68 - 70- 70 - ns RAS to CAS Delay tRCD 18 - 15 - 20 - 20 - 20 - 20 - ns RAS Active Time tRAS 42 100K 45 100K 45 100K 48 100K 50 100K 50 100K ns RAS Precharge Time tRP 18 - 15 - 20 - 20 - 20 - 20 - ns RAS to RAS Bank Active Delay tRRD 12- 15 - 15- 16 - 20- 20 - ns CAS to CAS Delay tCCD 1 - 1 - 1 - 1 - 1 - 1 - CLK Write Command to Data-In Delay tWTL 0 - 0 - 0 - 0 - 0 - 0 - CLK Write Recovery Time tWR 2 - 2 -2- 2 -2-2 - CLK Data-In to Active Command tDAL 5- 5-5- 5-5-5 - CLK DQM to Data-Out Hi-Z tDQZ 2 - 2 - 2 - 2 - 2 - 2 - CLK DQM to Data-In Mask tDQM 0- 0-0- 0-0-0 - CLK MRS to New Command tMRD 2- 2-2- 2-2-2 - CLK Precharge to Data Output Hi-Z CAS Latency = 3 tPROZ3 3 - 3 -3- 3 -3-3 - CLK CAS Latency = 2 tPROZ2 2 - 2 -2- 2 -2-2 - CLK Power Down Exit Time tPDE 1 - 1 - 1 - 1 - 1 - 1 - CLK Self Refresh Exit Time tSRE 1- 1-1- 1-1-1 - CLK 1 Refresh Time tREF - 64 - 64 - 64 - 64 - 64 - 64 ms |
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