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KM68257CL-20 Datasheet(PDF) 4 Page - Samsung semiconductor |
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KM68257CL-20 Datasheet(HTML) 4 Page - Samsung semiconductor |
4 / 10 page KM68257C/CL CMOS SRAM PRELIMINARY Rev 3.0 - 4 - February-1996 TEST CONDITIONS Parameter Value Input Pulse Levels 0V to 3V Input Rise and Fall Times 3§À 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 Parameter Symbol KM68257C/CL-12 KM68257C/CL-15 KM68257C/CL-20 Unit Min Max Min Max Min Max Read Cycle Time tRC 12 - 15 - 20 - §À Address Access Time tAA - 12 - 15 - 20 §À Chip Select to Output tCO - 12 - 15 - 20 §À Output Enable to Valid Output tOE - 6 - 7 - 9 §À Chip Enable to Low-Z Output Access tLZ 3 - 3 - 3 - §À Output Enable to Low-Z Output tOLZ 0 - 0 - 0 - §À Chip Disable to High-Z Output tHZ 0 6 0 7 0 10 §À Output Disable to High-Z Output tOHZ 0 6 0 7 0 10 §À Output Hold from Address Change tOH 3 - 3 - 3 - §À Chip Selection to Power Up Time tPU 0 - 0 - 0 - §À Chip Selection to Power DownTime tPD - 12 - 15 - 20 §À DOUT 30pF* 480 Ω 255 Ω +5V * Including Scope and Jig Capacitance |
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