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X28C256DM Fiches technique(PDF) 12 Page - Xicor Inc. |
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X28C256DM Fiches technique(HTML) 12 Page - Xicor Inc. |
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12 / 24 page ![]() 12 X28C256 A.C. CHARACTERISTICS (over recommended operating conditions, unless otherwise specified) Read Cycle Limits X28C256-20 X28C256-25 X28C256 Symbol Parameter Min. Max. Min. Max. Min. Max. Units tRC Read Cycle Time 200 250 300 ns tCE Chip Enable Access Time 200 250 300 ns tAA Address Access Time 200 250 300 ns tOE Output Enable Access Time 80 100 100 ns tLZ(5) CE LOW to Active Output 0 0 0 ns tOLZ(5) OE LOW to Active Output 0 0 0 ns tHZ(5) CE HIGH to High Z Output 50 50 50 ns tOHZ(5) OE HIGH to High Z Output 50 50 50 ns tOH Output Hold from 0 0 0 ns Address Change 3855 PGM T10.1 Read Cycle 3855 FHD F05 Note: (5) tLZ min., tHZ, tOLZ min., and tOHZ are peridocally sampled and not 100% tested. tHZ and tOHZ are measured, with CL = 5pF, from the point when CE or OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven. tCE tRC ADDRESS CE OE WE DATA VALID DATA VALID tOE tLZ tOLZ tOH tAA tHZ tOHZ DATA I/O VIH HIGH Z |
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