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ACT-SF41632 датащи(PDF) 3 Page - Aeroflex Circuit Technology |
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ACT-SF41632 датащи(HTML) 3 Page - Aeroflex Circuit Technology |
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3 / 11 page ![]() Aeroflex Circuit Technology SCD3851 REV A 5/21/98 Plainview NY (516) 694-6700 3 SRAM AC Characteristics (VCC = 5.0V, VSS= 0V, TC = -55°C to +125°C) Read Cycle Parameter Symbol –025 Min Max –035 Min Max Units Read Cycle Time tRC 25 35 ns Address Access Time tAA 25 35 ns Chip Select Access Time tACE 25 35 ns Output Hold from Address Change tOH 0 0 ns Output Enable to Output Valid tOE 15 20 ns Chip Select to Output in Low Z * tCLZ 3 3 ns Output Enable to Output in Low Z * tOLZ 0 0 ns Chip Deselect to Output in High Z * tCHZ 12 20 ns Output Disable to Output in High Z * tOHZ 12 20 ns * Parameters guaranteed by design but not tested Write Cycle Parameter Symbol –025 Min Max –035 Min Max Units Write Cycle Time tWC 25 35 ns Chip Select to End of Write tCW 20 25 ns Address Valid to End of Write tAW 20 25 ns Data Valid to End of Write tDW 15 20 ns Write Pulse Width tWP 20 25 ns Address Setup Time tAS 0 0 ns Output Active from End of Write * tOW 0 0 ns Write to Output in High Z * tWHZ 10 20 ns Data Hold from Write Time tDH 0 0 ns Address Hold Time tAH 0 0 ns * Parameters guaranteed by design but not tested SRAM Truth Table Mode SCE OE SWE Data I/O Power Standby H X X High Z Standby Read L L H Data Out Active Output Disable L H H High Z Active Write L X L Data In Active |
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