參數(shù)資料
型號(hào)： HYS72T256020HU-3-A
廠商： QIMONDA AG
元件分類： DRAM
英文描述： 240-Pin Unbuffered DDR2 SDRAM Modules
中文描述： 256M X 72 DDR DRAM MODULE, 0.45 ns, DMA240
封裝： GREEN, DIMM-240
文件頁數(shù)： 20/61頁
文件大小： 1365K
代理商： HYS72T256020HU-3-A
Internet Data Sheet
Rev. 1.32, 2006-09
03062006-5RK8-1X8J
20
HYS[64/72]T256xxxHU–[3/…/5]–A
Unbuffered DDR2 SDRAM Modules
TABLE 16
Speed Grade Definition Speed Bins for DDR2–400B
Speed Grade
DDR2–400B
Unit
Note
IFX Sort Name
–5
CAS-RCD-RP latencies
3–3–3
t
CK
Parameter
Symbol
Min.
Max.
—
Clock Frequency
@ CL = 3
@ CL = 4
@ CL = 5
t
CK
t
CK
t
CK
t
RAS
t
RC
t
RCD
t
RP
5
5
5
40
55
15
15
8
8
8
70000
—
—
—
ns
ns
ns
ns
ns
ns
ns
1)2)3)4)
1) Timings are guaranteed with CK/CK differential Slew Rate of 2.0 V/ns. For DQS signals timings are guaranteed with a differential Slew
Rate of 2.0 V/ns in differential strobe mode and a Slew Rate of 1 V/ns in single ended mode. Timings are further guaranteed for normal
OCD drive strength (EMRS(1) A1 = 0) only.
2) The CK/CK input reference level (for timing reference to CK/CK) is the point at which CK and CK cross. The DQS / DQS, RDQS / RDQS,
input reference level is the crosspoint when in differential strobe mode
3) Inputs are not recognized as valid until
V
REF
stabilizes. During the period before
V
REF
stabilizes, CKE = 0.2 x
V
DDQ
is recognized as low.
4) The output timing reference voltage level is
V
TT
.
5)
t
RAS.MAX
is calculated from the maximum amount of time a DDR2 device can operate without a refresh command which is equal to 9 x
t
REFI
.
1)2)3)4)
1)2)3)4)
Row Active Time
Row Cycle Time
RAS-CAS-Delay
Row Precharge Time
1)2)3)4)5)
1)2)3)4)
1)2)3)4)
1)2)3)4)
相關(guān)PDF資料
PDF描述
HYS72T256020HU-5-A 240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T256023 240-Pin Registered DDR2 SDRAM Modules
HYS72T256023HR 240-Pin Registered DDR2 SDRAM Modules
HYS72T256023HR-5-A 240-Pin Registered DDR2 SDRAM Modules
HYS72T512022HR 240-Pin Registered DDR2 SDRAM Modules
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYS72T256020HU-3S-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T256020HU-5-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T256023 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256023HR 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
HYS72T256023HR-5-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Registered DDR2 SDRAM Modules
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*