參數(shù)資料
型號: MT47H128M8HQ-187ELAT:E
元件分類: DRAM
英文描述: 128M X 8 DDR DRAM, 0.35 ns, PBGA60
封裝: 8 X 11.50 MM, ROHS COMPLIANT, FBGA-60
文件頁數(shù): 73/133頁
文件大?。?/td> 9170K
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
Figure 12: Single-Ended Input Signal Levels
650mV
775mV
864mV
882mV
900mV
918mV
936mV
1,025mV
1,150mV
VIL(AC)
VIL(DC)
VREF - AC noise
VREF - DC error
VREF + DC error
VREF + AC noise
VIH(DC)
VIH(AC)
Note: 1. Numbers in diagram reflect nominal DDR2-400/DDR2-533 values.
1Gb: x4, x8, x16 DDR2 SDRAM
Input Electrical Characteristics and Operating Conditions
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. S 10/09 EN
44
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2004 Micron Technology, Inc. All rights reserved.
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