參數(shù)資料
型號(hào): EDD2504AKTA-7A
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 256M bits DDR SDRAM (64M words x 4 bits)
中文描述: 64M X 4 DDR DRAM, 0.75 ns, PDSO66
封裝: PLASTIC, TSOP2-66
文件頁數(shù): 8/49頁
文件大?。?/td> 441K
代理商: EDD2504AKTA-7A
EDD2504AKTA
Data Sheet E0457E10 (Ver. 1.0)
8
13. tDAL = (tWR/tCK)+(tRP/tCK)
For each of the terms above, if not already an integer, round to the next highest integer.
Example: For –7A Speed at CL = 2.5, tCK = 7.5ns, tWR = 15ns and tRP= 20ns,
tDAL = (15ns/7.5ns) + (20ns/7.5ns) = (2) + (3)
tDAL = 5 clocks
Test Conditions
Parameter
Symbol
Value
Unit
Input reference voltage
VREF
VDDQ/2
V
Termination voltage
VTT
VREF
V
Input high voltage
VIH (AC)
VREF
+
0.31
V
Input low voltage
VIL (AC)
VREF
0.31
V
Input differential voltage, CK and /CK
inputs
Input differential cross point voltage,
CK and /CK inputs
VID (AC)
0.62
V
VIX (AC)
VREF
V
Input signal slew rate
SLEW
1
V/ns
VTT
VREF
VSS
/CK
CK
VREF
VSS
SLEW = (VIH (AC) – VIL (AC))/
t
Measurement point
VIH
VIL
VDD
VDD
DQ
RT = 50
CL = 30pF
VIX
t
tCL
tCK
tCH
VID
Input Waveforms and Output Load
相關(guān)PDF資料
PDF描述
EDD2504AKTA-7B 256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-7B-E 256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-E 256M bits DDR SDRAM (64M words x 4 bits)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EDD2504AKTA-7A-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-7B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-7B-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2504AKTA-E 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM (64M words x 4 bits)
EDD2508AETA 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM