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HMD1M32M2EG-50 Datasheet(PDF) 5 Page - Hanbit Electronics Co.,Ltd |
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HMD1M32M2EG-50 Datasheet(HTML) 5 Page - Hanbit Electronics Co.,Ltd |
5 / 7 page HANBit HMD1M32M2EG URL:www.hbe.co.kr - 5 - HANBiT Electronics Co., Ltd . REV. 1.0 (August. 2002) READ, WRITE AND REFRESH CYCLE (Common Parameters) HMD1M32M2G-6 HMD1M32M2G-7 SYMBOL PARAMETER MIN MAX MIN MAX UNIT NOTE tRC Random Read or Write Cycle Time 110 - 130 - ns tPR /RAS Precharge Time 40 - 50 - ns tRAS /RAS Pulse Width 60 10K 70 10K ns tCAS /CAS Pulse Width 15 10K 18 10K ns tASR Row Address Setup Time 0 - 0 - ns tRAH Row Address Hold Time 10 - 10 - ns tASC Column Address Setup Time 0 - 0 - ns tcah Column Address Hold Time 10 - 15 - ns 9 tRCD /RAS to /CAS Delay Time 20 45 20 52 ns 10 tRAD /RAS to Column Address Delay Time 15 30 15 35 ns tRSH /RAS Hold Time 15 - 18 - ns tCSH /CAS Hold Time 60 - 70 - ns tCRP /CAS to /RAS Precharge Time 5 - 5 - ns tT Transition Time (Rise and Fall) 3 50 3 50 ns 8 tREF Refresh Period (1024 Cycle) - 16 - 16 ms Read Cycle HMD1M32M2G-6 HMD1M32M2G-7 SYMBOL PARAMETER MIN MAX MIN MAX UNIT NOTE tRAC Access Time from /RAS - 60 - 70 ns 2,3 tCAC Access Time from /CAS - 15 - 18 ns 3,4 tAA Access Time from Column Address - 30 - 35 ns 3,5,14 tRCS Read Command Setup Time 0 - 0 - ns tRCH Read Command Hold Time to /CAS 0 - 0 - ns 6 tRRH Read Command Hold Time to /RAS 0 - 0 - ns 6 tRAL Column Address to /RAS Lead Time 30 - 35 - ns tOFF Output Buffer Turn-off Time - 15 - 15 ns 7 Write Cycle HMD1M32M2G-6 HMD1M32M2G-7 SYMBOL PARAMETER MIN MAX MIN MAX UNIT NOTE twcs Write Command Setup Time 0 - 0 - ns 11 |
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