參數(shù)資料
型號(hào): HYS72T256322HP
廠商: QIMONDA
英文描述: 240-Pin Dual-Die Registered DDR2 SDRAM Modules
中文描述: 240針雙模具注冊(cè)DDR2 SDRAM的模塊
文件頁(yè)數(shù): 24/36頁(yè)
文件大?。?/td> 1002K
代理商: HYS72T256322HP
Internet Data Sheet
Rev. 1.01, 2006-09
03062006-PK3L-ZYSE
25
HYS72T256322HP–[3S/3.7]–A
Registered DDR2 SDRAM Modules
TABLE 17
ODT AC Characteristics 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 measure from
t
AOND
.
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
.
2)
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