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HY62256AJ-I Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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HY62256AJ-I Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 14 page AC CHARACTERISTICS Vcc = 5V(±)10%, TA = 0°C to 70°C (Normal)/ -40°C to 85°C (E.T.) unless otherwise specified. # Symbol Parameter -55 -70 -85 Unit Min. Max. Min. Max. Min. Max. READ CYCLE 1 tRC Read Cycle Time 55 - 70 - 85 - ns 2 tAA Address Access Time - 55 - 70 - 85 ns 3 tACS Chip Select Access Time - 55 - 70 - 85 ns 4 tOE Output Enable to Output Valid - 30 - 35 - 45 ns 5 tCLZ Chip Select to Output in Low Z 5 - 5 - 5 - ns 6 tOLZ Output Enable to Output in Low Z 5 - 5 - 5 - ns 7 tCHZ Chip Deselection to Output in High Z 0 20 0 30 0 30 ns 8 tOHZ Out Disable to Output in High Z 0 20 0 30 0 30 ns 9 tOH Output Hold from Address Change 5 - 5 - 5 - ns WRITE CYCLE 10 tWC Write Cycle Time 55 - 70 - 85 - ns 11 tCW Chip Selection to End of Write 50 - 65 - 75 - ns 12 tAW Address Valid to End of Write 50 - 65 - 75 - ns 13 tAS Address Set-up Time 0 - 0 - 0 - ns 14 tWP Write Pulse Width 40 - 50 - 55 - ns 15 tWR Write Recovery Time 0 - 0 - 0 - ns 16 tWHZ Write to Output in High Z 0 20 0 30 0 30 ns 17 tDW Data to Write Time Overlap 25 - 35 - 40 - ns 18 tDH Data Hold from Write Time 0 - 0 - 0 - ns 19 tOW Output Active from End of Write 5 - 5 - 5 - ns AC TEST CONDITIONS TA = 0°C to 70°C (Normal) / -40°C to 85°C (E.T.) unless otherwise specified. PARAMETER VALUE Input Pulse Level 0.8V to 2.4V Input Rise and Fall Time 5ns Input and Output Timing Reference Levels 1.5V Output Load 70/85/100ns CL = 100pF + 1TTL Load 55ns CL = 50pF + 1TTL Load 3 of 4 22/10/97 12:33 -sram/62256ala1 http://www.hea.com/hean2/sram/62256ala1.htm |
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