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KM68257EI-12 Datasheet(PDF) 4 Page - Samsung semiconductor |
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KM68257EI-12 Datasheet(HTML) 4 Page - Samsung semiconductor |
4 / 8 page KM68257E, KM68257EI CMOS SRAM PRELIMINARY Revision 0.0 - 4 - August 1998 TEST CONDITIONS NOTE : The above test conditions are also applied at industrial temperature range. Parameter Value Input Pulse Levels 0V to 3V Input Rise and Fall Times 3ns Input and Output timing Reference Levels 1.5V Output Loads See below AC CHARACTERISTICS(TA=0 to 70 °C, VCC=5.0V±10%, unless otherwise noted.) Output Loads(A) Output Loads(B) DOUT 5pF* 480 Ω 255 Ω for tHZ, tLZ, tWHZ, tOW, tOLZ & tOHZ +5.0V READ CYCLE NOTE : The above parameters are also guaranteed at industrial temperature range . Parameter Symbol KM68257E-10 KM68257E-12 KM68257E-15 Unit Min Max Min Max Min Max Read Cycle Time tRC 10 - 12 - 15 - ns Address Access Time tAA - 10 - 12 - 15 ns Chip Select to Output tCO - 10 - 12 - 15 ns Output Enable to Valid Output tOE - 5 - 6 - 7 ns Chip Enable to Low-Z Output tLZ 3 - 3 - 3 - ns Output Enable to Low-Z Output tOLZ 0 - 0 - 0 - ns Chip Disable to High-Z Output tHZ 0 5 0 6 0 7 ns Output Disable to High-Z Output tOHZ 0 5 0 6 0 7 ns Output Hold from Address Change tOH 3 - 3 - 3 - ns Chip Selection to Power Up Time tPU 0 - 0 - 0 - ns Chip Selection to Power DownTime tPD - 10 - 12 - 15 ns DOUT 30pF* 480 Ω 255 Ω +5V * Including Scope and Jig Capacitance |
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