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1Gb: x8, x16 Automotive DDR2 SDRAM - Micron

1Gb: x8, x16 Automotive DDR2 SDRAM - Micron

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Figure 31: AC Input Test Signal Waveform for Data with DQS (Single-Ended)<br />

Logic levels<br />

Vswing (MAX)<br />

V REF levels<br />

DQS<br />

t DSb t DHb<br />

t DSa<br />

t DHa<br />

Figure 32: AC Input Test Signal Waveform (Differential)<br />

V TR<br />

V CP<br />

V DDQ<br />

Vswing<br />

V SSQ<br />

<strong>1Gb</strong>: <strong>x8</strong>, <strong>x16</strong> <strong>Automotive</strong> <strong>DDR2</strong> <strong>SDRAM</strong><br />

Input Slew Rate Derating<br />

t DSb<br />

t DSa<br />

t DHb<br />

t DHa<br />

Crossing point<br />

V IX<br />

V REF<br />

VDDQ VIH(AC)min VIH(DC)min VREF(DC) VIL(DC)max VIL(AC)max VSSQ PDF: 09005aef840eff89<br />

1gbddr2_ait_aat.pdf – Rev. C 7/11 EN 65 <strong>Micron</strong> Technology, Inc. reserves the right to change products or specifications without notice.<br />

� 2010 <strong>Micron</strong> Technology, Inc. All rights reserved.

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