參數(shù)資料
型號: HM5264405FTT-75
廠商: Hitachi,Ltd.
英文描述: 64M LVTTL interface SDRAM 133 MHz/100 MHz
中文描述: 6400 LVTTL接口SDRAM的133 MHz/100 MHz的
文件頁數(shù): 53/67頁
文件大?。?/td> 870K
代理商: HM5264405FTT-75
HM5264165F/HM5264805F/HM5264405F-75/A60/B60
53
Relationship Between Frequency and Minimum Latency
HM5264165F/
HM5264805F/
HM5264405F
Parameter
-75
-A60/B60
Frequency (MHz)
133
100
t
CK
(ns)
Active command to column command
(same bank)
HITACHI
Symbol
PC/100
Symbol
7.5
10
Notes
l
RCD
3
2
1
Active command to active command
(same bank)
l
RC
9
7
= [l
RAS
+ l
RP
]
1
Active command to precharge command
(same bank)
l
RAS
6
5
1
Precharge command to active command
(same bank)
l
RP
3
2
1
Write recovery or data-in to precharge
command (same bank)
l
DPL
Tdpl
2
1
1
Active command to active command
(different bank)
l
RRD
2
2
1
Self refresh exit time
l
SREX
l
APW
Tsrx
1
1
2
Last data in to active command
(Auto precharge, same bank)
Tdal
5
3
= [l
DPL
+ l
RP
]
Self refresh exit to command input
l
SEC
9
7
= [l
RC
]
3
Precharge command to high impedance
(
CAS
latency = 2)
(
CAS
latency = 3)
l
HZP
l
HZP
l
APR
Troh
2
2
Troh
3
3
Last data out to active command
(Auto precharge, same bank)
1
1
Last data out to precharge (early precharge)
(
CAS
latency = 2)
(
CAS
latency = 3)
l
EP
l
EP
l
CCD
l
WCD
l
DID
l
DOD
l
CLE
l
RSA
–1
–1
–2
–2
Column command to column command
Tccd
1
1
Write command to data in latency
Tdwd
0
0
DQM to data in
Tdqm
0
0
DQM to data out
Tdqz
2
2
CKE to CLK disable
Tcke
1
1
Register set to active command
Tmrd
1
1
相關(guān)PDF資料
PDF描述
HM5264165FTT-A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FTT-A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405FTT-A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264165FTT-B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264805FTT-B60 64M LVTTL interface SDRAM 133 MHz/100 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5264405FTT-A60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405FTT-B60 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
HM5264405LTT-10 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405LTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM
HM5264405LTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SDRAM