參數(shù)資料
型號： HM5264805D
廠商： Hitachi,Ltd.
英文描述： 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
中文描述： 6400 LVTTL接口的SDRAM（6400 LVTTL接口同步的DRAM）
文件頁數(shù)： 53/67頁
文件大?。?/td> 615K
代理商： HM5264805D
HM5264165D-A60, HM5264805D-A60, HM5264405D-A60
53
Relationship Between Frequency and Minimum Latency
HM5264165D/
HM5264805D/
HM5264405D
Parameter
-A60
Frequency (MHz)
100
66
t
CK
(ns)
Active command to column command
(same bank)
HITACHI
Symbol
PC/100
Symbol
10
15
Notes
l
RCD
2
2
1
Active command to active command
(same bank)
l
RC
7
6
= [l
RAS
+ l
RP
]
1
Active command to precharge command
(same bank)
l
RAS
5
4
1
Precharge command to active command
(same bank)
l
RP
2
2
1
Write recovery or data-in to precharge
command (same bank)
l
DPL
Tdpl
1
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
3
3
= [l
DPL
+ l
RP
]
Self refresh exit to command input
l
SEC
7
6
= [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PDF資料
PDF描述
HM5264405F 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
HM5264805F-75 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264805F-A60 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264805F-B60 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264165A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
相關代理商/技術參數(shù)
參數(shù)描述
HM5264805DLTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HM5264805DLTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HM5264805DTT-80 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HM5264805DTT-B60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SDRAM
HM5264805F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz
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