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DS9034PCX Datasheet(PDF) 6 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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DS9034PCX Datasheet(HTML) 6 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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6 / 11 page ![]() DS1643/DS1643P Nonvolatile Timekeeping RAM www.artschip.com 6 READ CYCLE, AC CHARACTERISTICS (0 ℃ to 70℃; Vcc =5.0V ±10%) 70 ns access 100 ns access PARAMETER SYMBOL MIN MAX MIN MAX UNITS NOTES Read Cycle Time tRC 70 100 ns 4 Address Access Time tAA 70 100 ns 4 and CE2 to DQ Low-Z tCEL 5 5 ns 4 Access Time tCEA 70 100 ns 4 CE2 Access Time tCE2A 80 105 ns 4 and CE2 Data Off Time tCEZ 25 35 ns 4 to DQ Low-Z tOEL 5 5 ns 4 Access Time tOEA 35 55 ns 4 Data off Time tOEZ 25 35 ns 4 Output Hold from Address tOH 5 5 ns 4 READ CYCLE TIMING DIAGRAM WRITE CYCLE, AC CHARACTERISTICS (0 ℃ to 70℃; Vcc =5.0V ±10%) 70 ns access 100 ns access PARAMETER SYMBOL MIN MAX MIN MAX UNITS NOTES Write Cycle Time tWC 70 100 ns 4 Address Setup Time tAS 0 0 ns 4 Pulse Width tWEW 50 70 ns 4 Pulse Width tCEW 60 75 ns 4 CE2 Pulse Width tCE2W 65 85 ns 4 Data Setup Time tDS 30 40 ns 4 Data Hold Time tDH 0 0 ns 4 Address Hold Time tAH 5 5 ns 4 Data Off Time tWEZ 25 35 ns 4 Write Recovery Time tWR 5 5 ns 4 |
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