參數(shù)資料
型號： HYS72T256040HP-3.7-A
廠商： QIMONDA AG
元件分類： DRAM
英文描述： 240-Pin Registered DDR2 SDRAM Modules
中文描述： 256M X 72 DDR DRAM MODULE, 0.5 ns, DMA240
封裝： GREEN, RDIMM-240
文件頁數(shù)： 22/49頁
文件大小： 1434K
代理商： HYS72T256040HP-3.7-A
Internet Data Sheet
Rev. 1.02, 2007-07
03292006-08VU-L8WK
22
HYS72T[64/128/256]xx0HP–[3S/3.7]–A
Registered DDR2 SDRAM Modules
FIGURE 2
Method for calculating transitions and endpoint
FIGURE 3
Differential input waveform timing -
t
DS
and
t
DS
FIGURE 4
Differential input waveform timing -
t
lS
and
t
lH
35) For these parameters, the DDR2 SDRAM device is characterized and verified to support
t
nPARAM
= RU{
t
PARAM
/
t
CK.AVG
}, which is in clock
cycles, assuming all input clock jitter specifications are satisfied. For example, the device will support
t
nRP
= RU{
/
t
}, which is in
clock cycles, if all input clock jitter specifications are met. This means: For DDR2–667 5–5–5, of which
t
= 15 ns, the device will support
t
nRP
= RU{
t
RP
/
t
CK.AVG
} = 5, i.e. as long as the input clock jitter specifications are met, Precharge command at Tm and Active command at
Tm + 5 is valid even if (Tm + 5 - Tm) is less than 15 ns due to input clock jitter.
36)
t
WTR
is at lease two clocks (2 x
t
CK
) independent of operation frequency.
W+=
W5367
HQGSR LQW
7 7
92+[P
9
92+[P
9
92/ [P
9
92/ [P 9
W/=
W535(
EHJLQSRLQW
7
7
977 [P9
977 [P9
977 [ P9
977 [P9
W/= W535(
EHJLQSRL QW
7 7
W+=W53 67
HQGSRL QW
7 7
W'6
9
''4
9
,+D F
PL Q
9
,+G F
PL Q
6
2%&DC
9
,/ GF
PD [
9
,/ DF
PD [
9
66
'46
'46
W'+
W'6
W'+
W,6
9
''4
9
,+D F
PLQ
9
,+G F
PLQ
9
5()GF
9
,/G F
PD [
9
,/D F
PD [
9
66
&.
&.
W,+
W,6
W,+
相關(guān)PDF資料
PDF描述
HYS72T256040HP-3S-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T256220HP 240-Pin Registered DDR2 SDRAM Modules
HYS72T256220HP-3.7-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T256220HP-3S-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T64000HP 240-Pin Registered DDR2 SDRAM Modules
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYS72T256040HP-3S-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256040HR 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256040HR-3.7-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256040HR-3S-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256220GR 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:DDR2 Registered Memory Modules
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