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HY5DU12822B Datasheet(PDF) 34 Page - Hynix Semiconductor |
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HY5DU12822B Datasheet(HTML) 34 Page - Hynix Semiconductor |
34 / 37 page ![]() Rev. 0.1 / May 2004 34 HY5DU12422B(L)TP HY5DU12822B(L)TP HY5DU121622B(L)TP -Continue : 1. This calculation accounts for tDQSQ(max), the pulse width distortion of on-chip circuit and jitter. 2. Data sampled at the rising edges of the clock : A0~A12, BA0~BA1, CKE, /CS, /RAS, /CAS, /WE. 3. For command/address input slew rate >=1.0V/ns 4. For command/address input slew rate >=0.5V/ns and <1.0V/ns This derating table is used to increase tIS/tIH in case where the input slew-rate is below 0.5V/ns. Input Setup / Hold Slew-rate Derating Table. Parameter Symbol DDR266A DDR266B DDR200 UNIT NOTE Min Max Min Max Min Max 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 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 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 Write DQS Low Level Width tDQSL 0.35 - 0.35 - 0.35 - CK Clock to First Rising edge of DQS-In tDQSS 0.75 1.25 0.75 1.25 0.75 1.25 CK DQSfalling edge to CK setup time tDSS 0.2 0.2 0.2 CK DQS falling edge hold time from CK tDSH 0.2 0.2 0.2 CK Data-In Setup Time to DQS- In (DQ & DM) tDS 0.5 - 0.5 - 0.6 - ns 6,7, 11,12, 13 Data-in Hold Time to DQS-In (DQ & DM) tDH 0.5 - 0.5 - 0.6 - ns DQ & DM Input Pulse Width tDIPW 1.75 - 1.75 - 2 - ns Read DQS Preamble Time tRPRE 0.9 1.1 0.9 1.1 0.9 1.1 CK Read DQS Postamble Time tRPST 0.4 0.6 0.4 0.6 0.4 0.6 CK Write DQS Preamble Setup Time tWPRES 0-0 - 0- CK Write DQS Preamble Hold Time tWPREH 0.25 - 0.25 - 0.25 - CK Write DQS Postamble Time tWPST 0.4 0.6 0.4 0.6 0.4 0.6 CK Mode Register Set Delay tMRD 2-2 - 2- CK Exit Self Refresh to Any Execute Command tXSC 200 - 200 - 200 - CK 8 Average Periodic Refresh Interval tREFI -7.8 - 7.8 -7.8 us Input Setup / Hold Slew-rate Delta tIS Delta tIH V/ns ps ps 0.5 0 0 0.4 +50 0 0.3 +100 0 |
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