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MT47H16M16BG-3ITB Datasheet(PDF) 41 Page - Micron Technology |
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MT47H16M16BG-3ITB Datasheet(HTML) 41 Page - Micron Technology |
41 / 129 page Input Electrical Characteristics and Operating Conditions Table 14: Input DC Logic Levels All voltages are referenced to VSS Parameter Symbol Min Max Units Input high (logic 1) voltage VIH(DC) VREF(DC) + 125 VDDQ1 mV Input low (logic 0) voltage VIL(DC) –300 VREF(DC) - 125 mV Note: 1. VDDQ + 300mV allowed provided 1.9V is not exceeded. Table 15: Input AC Logic Levels All voltages are referenced to VSS Parameter Symbol Min Max Units Input high (logic 1) voltage (-37E/-5E) VIH(AC) VREF(DC) + 250 VDDQ1 mV Input high (logic 1) voltage (-187E/-25E/-25/-3E/-3) VIH(AC) VREF(DC) + 200 VDDQ1 mV Input low (logic 0) voltage (-37E/-5E) VIL(AC) –300 VREF(DC) - 250 mV Input low (logic 0) voltage (-187E/-25E/-25/-3E/-3) VIL(AC) –300 VREF(DC) - 200 mV Note: 1. Refer to AC Overshoot/Undershoot Specification (page 51). Figure 11: Single-Ended Input Signal Levels 650mV 775mV 864mV 882mV 900mV 918mV 936mV 1,025mV 1,150mV V IL(AC) V IL(DC) V REF - AC noise V REF - DC error V REF + DC error V REF + AC noise V IH(DC) V IH(AC) Note: 1. Numbers in diagram reflect nominal DDR2-400/DDR2-533 values. 256Mb: x4, x8, x16 DDR2 SDRAM Input Electrical Characteristics and Operating Conditions PDF: 09005aef8117c187 256MbDDR2.pdf - Rev. N 7/11 EN 41 Micron Technology, Inc. reserves the right to change products or specifications without notice. 2003 Micron Technology, Inc. All rights reserved. |
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