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EM6A9320 Datasheet(PDF) 10 Page - Etron Technology, Inc. |
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EM6A9320 Datasheet(HTML) 10 Page - Etron Technology, Inc. |
10 / 16 page Et r onT ech 4Mx32 DDR SDRAM EM6A9320 Etron Confidential 10 Rev 0.3 July. 2002 Decoupling Capacitance Guide Line Symbol Parameter Value Unit CDC1 Decouping Capacitance between VDD and VSS 0.1+0.01 uF CDC2 Decouping Capacitance between VDDQ and VSSQ 0.1+0.01 uF AC Input Operating Conditions (VDD = 2.8V ± 5% for 350, 333, 300, or 285MHz, VDD=2.5 ± 5% for 250 or 200MHz, TA = 0~70 °C) Symbol Parameter Min Max Unit Note VIH Input High Voltage; DQ VREF+0.4 - V VIL Input Low Voltage; DQ - VREF-0.4 V VID Clock Input Differential Voltage; Ck & CK# 0.8 VDDQ+0.6 V VIX Clock Input Crossing Point Voltage; Ck & CK# 0.5xVDDQ-0.2 0.5xVDDQ+0.2 V AC Operating Test Conditions (VDD = 2.8V ± 5% for 350, 333, 300, or 285MHz, VDD=2.5 ± 5% for 250 or 200MHz, TA = 0~70 °C) Reference Level of Output Signals (VRFE) 0.5 x VDDQ CK & CK# signal maximum peak swing 1.5V Output Load See Figure. A Test Load Input Signal Levels VREF+0.4 V / VREF-0.4 V Input Signals Slew Rate 1 V/ns Input timing measurement reference level VREF Output timing measurement reference level VTT Reference Level of Input Signals 0.5 x VDDQ Figure A. Test Load : DQ,DQS 30pF V ΤΤ=0.5 x V∆∆Θ Z0=50 W VREF=0.5 x VDDQ |
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