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128Mb: x4, x8, x16
DDR SDRAM
PDF: 09005aef80505d1b / Source: 09005aef80469e44
128Mb: x4, x8, x16 DDR SDRAM
Rev: 11/23/2004
4
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SpecTek reserves the right to change products or specifications
without notice.
© 2001, 2002, 2004 SpecTek
AC INPUT OPERATING CONDITIONS
(25°C < TA < + 70°C; VDD = +2.5V ±0.2V, VDDQ = +2.5V ±0.2V)
PARAMETER/CONDITION
SYMBOL
MIN
MAX
UNIT
S
NOTES
Input High (Logic 1) Voltage
VIH (AC)VREF + 0.310
--
V
14, 28,
40
Input Low (Logic 0) Voltage
VIL (AC)--
VREF – 0.310
V
14, 28,
40
Clock Input Differential Voltage; CK and CK#
VID (AC)
0.7
VDDQ + 0.6
V
8
Clock Input Crossing Point Voltage; CK and CK#
VIX (AC)
0.5 X VDDQ – 0.2
0.5 X VDDQ + 0.2
V
9
I/O Reference Voltage
VREF (AC)
0.49 X VDDQ
0.51 X VDDQ
V6
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