參數(shù)資料
型號(hào): HYB25D256400AT-7
英文描述: ?256Mbit (64Mx4) DDR266A (2-3-3)?
中文描述: ?的256Mbit(64Mx4)DDR266A(2-3-3)?
文件頁(yè)數(shù): 43/76頁(yè)
文件大?。?/td> 1218K
代理商: HYB25D256400AT-7
2002-05-06
Page 43 of 76
HYB25D128400/800/160AT(L)
128-Mbit Double Data Rate SDRAM
Precharge
The Precharge command is used to deactivate the open row in a particular bank or the open row in all banks.
The bank(s) will be available for a subsequent row access some specified time (t
RP
) after the Precharge com-
mand is issued. Input A10 determines whether one or all banks are to be precharged, and in the case where
only one bank is to be precharged, inputs BA0, BA1 select the bank.
W
hen all banks are to be precharged,
inputs BA0, BA1 are treated as “Don’t Care.” Once a bank has been precharged, it is in the idle state and
must be activated prior to any Read or
W
rite commands being issued to that bank.
Precharge Command
BA
H
I
GH
BA = bank address
(if A10 is Low, otherwise Don’t Care).
CK
CK
CK
E
CS
RAS
CAS
WE
A10
BA0, BA1
Don’t Care
All Banks
One Bank
A0-A
9
, A11
相關(guān)PDF資料
PDF描述
HYB25D256400AT-7.5 DDR Synchronous DRAM
HYB25D256400AT-8 ?256Mbit (64Mx4) DDR 200 (2-2-2) End-of-Life?
HYB25D256400BC-7 ?256Mb (64Mx4) FBGA DDR266A (2-3-3)?
HYB25D256400BT-6 ?256Mbit (64Mx4) DDR333 (2.5-3-3)?
HYB25D256400BT-7 ?256Mbit (64Mx4) DDR266A (2-3-3)?
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HYB25D256400AT-7.5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DDR Synchronous DRAM
HYB25D256400AT-8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?256Mbit (64Mx4) DDR 200 (2-2-2) End-of-Life?
HYB25D256400B 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 Mbit Double Data Rate SDRAM
HYB25D256400BC-5 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 Mbit Double Data Rate SDRAM
HYB25D256400BC-6 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:256 Mbit Double Data Rate SDRAM