參數(shù)資料
型號: K4H560838F-UC
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 256Mb F-die DDR400 SDRAM Specification
中文描述: 256Mb的的F -模具支持DDR400內(nèi)存規(guī)格
文件頁數(shù): 14/19頁
文件大?。?/td> 171K
代理商: K4H560838F-UC
DDR SDRAM
DDR SDRAM 256Mb F-die (x8, x16)
Rev. 1.1 August. 2003
Overshoot/Undershoot specification for Data, Strobe, and Mask Pins
Parameter
Specification
DDR400
1.2V
1.2V
2.5V-ns
2.5V-ns
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
The area between the overshoot signal and VDD must be less than or equal to
The area between the undershoot signal and GND must be less than or equal to
5
4
3
2
1
0
-1
-2
-3
-4
-5
0
0.5 1.0 1.42 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.68 6.0 6.5 7.0
VDDQ
Overshoot
Maximum Amplitude = 1.2V
Area = 2.5V-ns
Maximum Amplitude = 1.2V
undershoot
GND
V
Tims(ns)
DQ/DM/DQS AC overshoot/Undershoot Definition
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