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EDE1108AFBG-8G-F 参数 Datasheet PDF下载

EDE1108AFBG-8G-F图片预览
型号: EDE1108AFBG-8G-F
PDF下载: 下载PDF文件 查看货源
内容描述: 1G位DDR2 SDRAM [1G bits DDR2 SDRAM]
分类和应用: 存储内存集成电路动态存储器双倍数据速率
文件页数/大小: 78 页 / 734 K
品牌: ELPIDA [ ELPIDA MEMORY ]
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EDE1108AFBG  
Recommended DC Operating Conditions (SSTL_18)  
Parameter  
Symbol  
VDD  
min.  
typ.  
1.8  
1.8  
max.  
1.9  
Unit  
V
Notes  
Supply voltage  
1.7  
4
Supply voltage for output  
Input reference voltage  
Termination voltage  
DC input logic high  
DC input logic low  
AC input logic high  
AC input logic low  
VDDQ  
1.7  
1.9  
V
4
VREF  
0.49 × VDDQ  
VREF 0.04  
VREF + 0.125  
0.3  
0.50 × VDDQ 0.51 × VDDQ  
V
1, 2  
3
VTT  
VREF  
VREF + 0.04  
VDDQ + 0.3  
VREF – 0.125  
V
VIH (DC)  
VIL (DC)  
VIH (AC)  
VIL (AC)  
V
V
VREF + 0.200  
V
VREF – 0.200  
V
Notes: 1. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically  
the value of VREF is expected to be about 0.5 × VDDQ of the transmitting device and VREF are expected  
to track variations in VDDQ.  
2. Peak to peak AC noise on VREF may not exceed ±2% VREF (DC).  
3. VTT of transmitting device must track VREF of receiving device.  
4. VDDQ tracks with VDD, VDDL tracks with VDD. AC parameters are measured with VDD, VDDQ and  
VDDL tied together.  
Preliminary Data Sheet E1430E20 (Ver. 2.0)  
6