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KM44H16030C-GZ View Datasheet(PDF) - Samsung

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KM44H16030C-GZ Datasheet PDF : 49 Pages
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128Mb DDR SDRAM
8. AC Operating Conditions & Timming Specification
8.1 AC Operating Conditions
Target
Parameter/Condition
Input High (Logic 1) Voltage, DQ, DQS and DM signals
Input Low (Logic 0) Voltage, DQ, DQS and DM signals.
Input Differential Voltage, CK and CK inputs
Input Crossing Point Voltage, CK and CK inputs
Symbol
Min
VIH(AC) VREF + 0.35
VIL(AC)
VID(AC) 0.7
VIX(AC) 0.5*VDDQ-0.2
Max
VREF - 0.35
VDDQ+0.6
0.5*VDDQ+0.2
Unit
V
V
V
V
Note
1
2
Note 1. VID is the magnitude of the difference between the input level on CK and the input on CK.
2. The value of VIX is expected to equal 0.5*VDDQ of the transmitting device and must track variations in the DC level of the same.
Table 13. AC operating conditions
- 41 of 63 -
REV. 0.61 August 9. '99
 

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