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X84128G Datasheet(PDF) 10 Page - IC MICROSYSTEMS |
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X84128G Datasheet(HTML) 10 Page - IC MICROSYSTEMS |
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10 / 22 page  X84160/640/128 10 A.C. CHARACTERISTICS (Over the recommended operating conditions, unless otherwise specified.) Read Cycle Limits – X84160/640/128 Notes: (4) Periodically sampled, but not 100% tested. tHZ and tOHZ are measured from the point where CE or OE goes HIGH (whichever occurs first) to the time when I/O is no longer being driven into a 5pF load. Symbol Parameter VCC = 4.5V – 5.5V VCC = 2.5V – 5.5V VCC = 1.8V – 3.6V Units Min. Max Min. Max. Min. Max. tRC Read Cycle Time 70 125 250 ns tCE CE Access Time 20 25 70 ns tOE OE Access Time 20 25 70 ns tOEL OE Pulse Width 20 35 70 ns tOEH OE High Recovery Time 50 90 180 ns tLOW CE LOW Time 20 35 70 ns tHIGH CE HIGH Time 50 90 180 ns tLZ (4) CE LOW to Output In Low Z 0 0 0 ns tHZ (4) CE HIGH to Output In High Z 0 15 0 25 0 30 ns tOLZ (4) OE LOW to Output In Low Z 0 0 0 ns tOHZ (4) OE HIGH to Output In High Z 0 15 0 25 0 30 ns tOH Output Hold from CE or OE HIGH 0 0 0 ns tWES WE HIGH Setup Time 25 25 25 ns tWEH WE HIGH Hold Time 25 25 25 ns CE WE tWES OE tHIGH tCE tOE t OLZ tOH tWEH HIGH Z DATA t OHZ t HZ t LZ tLOW tRC I/O OEL t tOEH |
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