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EM68932DVKB データシート(PDF) 18 Page - Etron Technology, Inc.

部品番号 EM68932DVKB
部品情報  4M x 32 Mobile DDR Synchronous DRAM (SDRAM)
PDF  40 Pages
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メーカー  ETRON [Etron Technology, Inc.]
ホームページ  http://www.etron.com
Logo ETRON - Etron Technology, Inc.

EM68932DVKB データシート(HTML) 18 Page - Etron Technology, Inc.

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EtronTech
EM68932DVKB
Etron Confidential
18
Rev. 1.0
Aug. 2009
Table 16. Recommended A.C. Operating Conditions (VDD=1.7V~1.95V, TA =-25~85°C)
Parameter
Symbol
Min.
Max.
Unit Note
Input High Voltage (AC)
VIH (AC)
0.8 x VDDQ
VDDQ+0.3
V
1
Input Low Voltage (AC)
VIL (AC)
-0.3
0.2 x VDDQ
V
1
Input Crossing Point Voltage, CK and CK inputs VIX (AC)
0.4 x VDDQ
0.6 x VDDQ
V
2
Note:
1. These parameters should be tested at the pin on actual components and may be checked at either the pin
or the pad in simulation.
2. The value of VIX is expected to equal 0.5 x VDDQ of the transmitting device and must track variation in the DC
level of the same.
Table 17. LVCMOS Interface
Reference Level of Output Signals
0.5 x VDDQ
Output Load
Reference to the Test Load
Input Signal Levels (VIH/ VIL)
0.8 x VDDQ / 0.2 x VDDQ
Input Signals Slew Rate
1 V/ns
Reference Level of Input Signals
0.5 x VDDQ
Figure 4. LVCMOS A.C. Test Load
Output
Z0=50Ω
50Ω
20pF
0.5 x VDDQ



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