參數(shù)資料
型號(hào)： HYS72T32000HU
廠商： QIMONDA
英文描述： 240-Pin Unbuffered DDR2 SDRAM Modules
中文描述： 240針無緩沖DDR2 SDRAM內(nèi)存模塊
文件頁數(shù)： 33/73頁
文件大?。?/td> 1574K
代理商： HYS72T32000HU
Internet Data Sheet
Rev. 1.41, 2006-11
03062006-0GN5-WTPW
33
HYS[64/72]T[16/32/64]0xxHU–[2.5/../5]–A
Unbuffered DDR2 SDRAM Modules
TABLE 21
ODT AC Character. and Operating Conditions for DDR2-533 & DDR2-400
Symbol
Parameter / Condition
Values
Unit
Note
Min.
Max.
t
AOND
t
AON
t
AONPD
t
AOFD
t
AOF
t
AOFPD
t
ANPD
t
AXPD
ODT turn-on delay
ODT turn-on
ODT turn-on (Power-Down Modes)
ODT turn-off delay
ODT turn-off
ODT turn-off (Power-Down Modes)
ODT to Power Down Mode Entry Latency
ODT Power Down Exit Latency
2
t
AC.MIN
t
AC.MIN
+ 2 ns
2.5
t
AC.MIN
t
AC.MIN
+ 2 ns
3
8
2
t
AC.MAX
+ 1 ns
2
t
CK +
t
AC.MAX
+ 1 ns
2.5
t
AC.MAX
+ 0.6 ns
2.5
t
CK +
t
AC.MAX
+ 1 ns
—
—
t
CK
ns
ns
t
CK
ns
ns
t
CK
t
CK
1)
1) ODT turn on time min is when the device leaves high impedance and ODT resistance begins to turn on. ODT turn on time max is when
the ODT resistance is fully on. Both are measured from
t
AOND
, which is interpreted differently per speed bin. For DDR2-400/533,
t
AOND
is
10 ns (= 2 x 5 ns) after the clock edge that registered a first ODT HIGH if
t
CK
= 5 ns.
2) ODT turn off time min. is when the device starts to turn off ODT resistance. ODT turn off time max is when the bus is in high impedance.
Both are measured from
t
AOFD
. Both are measured from
t
AOFD
, which is interpreted differently per speed bin. For DDR2-400/533,
t
AOFD
is
12.5 ns (= 2.5 x 5 ns) after the clock edge that registered a first ODT HIGH if
t
CK
= 5 ns.
2)
相關(guān)PDF資料
PDF描述
HYS72T32000HU-2.5-A 240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-25F-A 240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3.7-A 240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3-A 240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3S-A 240-Pin Unbuffered DDR2 SDRAM Modules
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYS72T32000HU-2.5-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-25F-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3.7-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
HYS72T32000HU-3S-A 制造商:QIMONDA 制造商全稱:QIMONDA 功能描述:240-Pin Unbuffered DDR2 SDRAM Modules
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