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AS4C14400-50JC Datasheet(PDF) 5 Page - Alliance Semiconductor Corporation |
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AS4C14400-50JC Datasheet(HTML) 5 Page - Alliance Semiconductor Corporation |
5 / 16 page ® AS4C14400 5 Write cycle Shaded areas contain advance information. Read-modify-write cycle Shaded areas contain advance information. Symbol Parameter -40 -50 -60 -70 Unit Notes Min Max Min Max Min Max Min Max tASC Column address setup time 0 – 0 –0 – 0 – ns tCAH Column address hold time 8 – 10 –10 – 15 – ns tAWR Column address hold time to RAS 30 – 40 –45 – 55 – ns tWCS Write command setup time 0 – 0 –0 – 0 – ns 11 tWCH Write command hold time 5 – 10 –10 – 15 – ns 11 tWCR Write command hold time to RAS 30 – 40 –45 – 55 – ns tWP Write command pulse width 8 – 10 –10 – 15 – ns tRWL Write command to RAS lead time 10 – 13 –15 – 18 – ns tCWL Write command to CAS lead time 10 – 13 –15 – 18 – ns tDS Data-In setup time 0 – 0 –0 – 0 – ns 12 tDH Data-In hold time 8 – 10 –10 – 15 – ns 12 tDHR Data-In hold time to RAS 30 – 40 –45 – 55 – ns Symbol Parameter -40 -50 -60 -70 Unit Notes Min Max Min Max Min Max Min Max tRWC Read-write cycle time 105 – 131 – 155 – 181 – ns tRWD RAS to WE delay time 60 – 73 –85 – 98 – ns 11 tCWD CAS to WE delay time 30 – 36 –40 – 46 – ns 11 tAWD Column address to WE delay time 40 – 48 –55 – 63 – ns 11 tRSH(W) CAS to RAS hold time (write) 10 – 13 –15 – 18 – ns tCAS(W) CAS pulse width (write) 10 – 13 –15 – 18 – ns |
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