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CS22220 Scheda tecnica(PDF) 28 Page - Cirrus Logic |
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CS22220 Scheda tecnica(HTML) 28 Page - Cirrus Logic |
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28 / 34 page ![]() CS22220 Wireless PCMCIA Controller 28 of 34 DS557PP2 Rev. 3.0 www.cirrus.com Table 10. Attribute Memory ‘Read’ Timing Specification 600 ns Speed Version Item Symbol Min Max Read Cycle Time tcR 600 Address Accesss Time ta (A) 600 Card Enable Access Time ta (CE) 600 Output Enable Access Time ta (OE) 300 Output Disable Time from PC_NOE tdis (OE) 150 Output Enable Time from PC_NCE ten (OE) 5 Data Valid from Address Change tv (A) 0 Address Setup Time tsu (A) 100 Address Hold Time th (A) 35 Card Enable Setup Time tsu (CE) 0 Card Enable Hold Time th (CE) 35 PC_NWAIT Valid from PC_NOE tv (WT-OE) 100 PC_NWAIT Pulse Width tw (WT) 12 us Data Setup for PC_NWAIT Released tv (WT) 0 Figure 9. Memory ‘Write’ Timing Diagram PC_A[25:0], PC_NREG PC_NCE PC_NOE PC_NWAIT PC_D[15:0](Din) t c(W) t su(CE-WEH) t su(CE) t su(A-WEH) t su(A) t su(OE-WE) t w(WE) PC_NWE PC_D[15:0](Dout) Valid Data Input t v(WT-WE) t v(WT) t w(WT) t su(D-WEH) t dis(WE) t dis(OE) t en(WE) t h(CE) t rec(WE) t h(D) t h(OE-WE) t en(OE) |
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