參數(shù)資料
型號(hào): HYB18T512400AF-3
廠商: INFINEON TECHNOLOGIES AG
英文描述: 512-Mbit DDR2 SDRAM
中文描述: 512兆位DDR2 SDRAM的
文件頁數(shù): 104/117頁
文件大?。?/td> 2102K
代理商: HYB18T512400AF-3
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
512-Mbit DDR2 SDRAM
Electrical Characteristics
Data Sheet
104
Rev. 1.3, 2005-01
09112003-SDM9-IQ3P
Min.
2
t
AC.MIN
t
AC.MIN
+ 2 ns
2.5
t
AC.MIN
t
AC.MIN
+ 2 ns
7.3
ODT AC Electrical Characteristics
Table 55
Symbol
ODT AC Electrical Characteristics and Operating Conditions for DDR2-667
Parameter / Condition
Values
Min.
2
t
AC.MIN
t
AC.MIN
+ 2 ns
2.5
t
AC.MIN
t
AC.MIN
+ 2 ns
Unit
Note
Max.
2
t
AC.MAX
+ 0.7 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 ns
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 3
ODT Power Down Exit Latency
t
CK
ns
ns
t
CK
ns
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)
t
CK
t
CK
8
Table 56
Symbol
ODT AC Electrical Characteristics and Operating Conditions for DDR2-533 and DDR2-400
Parameter / Condition
Values
Unit
Note
Max.
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 ns
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 3
ODT Power Down Exit Latency
t
CK
ns
ns
t
CK
ns
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)
t
CK
t
CK
8
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