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): 12/76頁(yè)
文件大?。?/td> 1218K
代理商: HYB25D256400AT-7
HYB25D128400/800/160AT(L)
128-Mbit Double Data Rate SDRAM
Page 12 of 76
2002-05-06
Operating Mode
The normal operating mode is selected by issuing a Mode Register Set Command with bits A7-A11 set to
zero, and bits A0-A6 set to the desired values. A DLL reset is initiated by issuing a Mode Register Set com-
mand with bits A7 and A
9
-A11 each set to zero, bit A8 set to one, and bits A0-A6 set to the desired values. A
Mode Register Set command issued to reset the DLL should always be followed by a Mode Register Set
command to select normal operating mode.
All other combinations of values for A7-A11 are reserved for future use and/or test modes. Test modes and
reserved states should not be used as unknown operation or incompatibility with future versions may result.
Required CAS Latencies
N
OP
N
OP
N
OP
N
OP
N
OP
Read
CAS Latency = 2, BL = 4
Shown with nominal t
AC
, t
DQSCK
, and t
DQSQ
.
CK
CK
Command
DQS
DQ
Don’t Care
CL=2
N
OP
N
OP
N
OP
N
OP
N
OP
Read
CAS Latency = 2.5, BL = 4
CK
CK
Command
DQS
DQ
CL=2.5
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