參數(shù)資料
型號(hào)： HB52E169E12
廠商： Hitachi,Ltd.
英文描述： 128 MB Registered SDRAM DIMM(128 MB 寄存同步DRAM DIMM)
中文描述： 128 MB的注冊(cè)SDRAM的內(nèi)存（128 MB的寄存同步的DRAM內(nèi)存）
文件頁(yè)數(shù)： 40/53頁(yè)
文件大?。?/td> 1737K
代理商： HB52E169E12
HB52E169E12-F
40
Bank active to bank active for different bank
Mode register set to Bank-active command interval:
The interval between setting the mode register and
executing a bank-active command must be no less than l
RSA
.
DQMB Control
The DQMB mask the DQ data. The timing of DQMB is different during reading and writing.
Reading:
When data is read, the output buffer can be controlled by DQMB. By setting DQMB to Low, the
output buffer becomes Low-Z, enabling data output. By setting DQMB to High, the output buffer becomes
High-Z, and the corresponding data is not output. However, internal reading operations continue. The laten-
cy of DQMB during reading is 3 clocks.
Writing:
Input data can be masked by DQMB. By setting DQMB to Low, data can be written. In addition,
when DQMB is set to High, the corresponding data is not written, and the previous data is held. The latency
of DQMB during writing is 1 clock.
CK
Command
Address
BA
Bank 0
Active
Bank 3
Active
ACTV
ROW:0
ACTV
ROW:1
t
RRD
CK
Command
Address
Mode
Register Set
Bank
Active
MRS
ACTV
I
RSA
BS & ROW
CODE
相關(guān)PDF資料
PDF描述
HB52E648EN 512 MB Unbuffered SDRAM DIMM(512 MB 未緩沖同步DRAM DIMM)
HB52E649EN 512 MB Unbuffered SDRAM DIMM(512 MB 未緩沖同步DRAM DIMM)
HB52E649E12 THERMISTOR, NTC; Series:B575; Thermistor type:NTC; Resistance:10kR; Tolerance, resistance:+/-1%; Beta value:3450; Temperature, lower limit, beta value:0(degree C); Temperature, upper limit, beta value:100(degree C); Temp, op. RoHS Compliant: Yes
HB52E649E12-A6B 512 MB Registered SDRAM DIMM 64-Mword 】 72-bit, 100 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M 】 4 Components) PC100 SDRAM
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HB52E169EN-B6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module
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HB52E328EM-B6B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256MB Unbuffered SDRAM DIMM
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