參數(shù)資料
型號(hào)： HB52R649E1U-A6B
廠商： ELPIDA MEMORY INC
元件分類(lèi)： DRAM
英文描述： 64M X 72 SYNCHRONOUS DRAM MODULE, 6.9 ns, DMA168
封裝： DIMM-168
文件頁(yè)數(shù)： 9/20頁(yè)
文件大?。?/td> 151K
代理商： HB52R649E1U-A6B
EOL
Product
HB52R649E1U-A6B/B6B
Preliminary Data Sheet E0022H10
17
Relationship Between Frequency and Minimum Latency
Parameter
HB52R649E1U
Frequency (MHz)
-A6B/B6B
t
CK (ns)
Symbol
PC100
Symbol 10
Notes
Active command to column command (same bank)
I
RCD
21
Active command to active command (same bank)
I
RC
7
= [I
RAS + IRP]
1
Active command to precharge command (same bank)
I
RAS
51
Precharge command to active command (same bank)
I
RP
21
Write recovery or data-in to precharge command
(same bank)
I
DPL
Tdpl
1
Active command to active command (different bank)
I
RRD
21
Self refresh exit time
I
SREX
Tsrx
2
Last data in to active command
(Auto precharge, same bank)
I
APW
Tdal
3
= [I
DPL + IRP]
Self refresh exit to command input
I
SEC
7
= [I
RC]
3
Precharge command to high impedance
(
CE latency = 3)
I
HZP
Troh
3
(
CE latency = 4)
I
HZP
Troh
4
Last data out to active command (auto precharge)
(same bank)
I
APR
0
Last data out to precharge (early precharge)
(
CE latency = 3)
I
EP
–2
(
CE latency = 4)
I
EP
–3
Column command to column command
I
CCD
Tccd
1
Write command to data in latency
I
WCD
Tdwd
1
DQMB to data in
I
DID
Tdqm
1
DQMB to data out
I
DOD
Tdqz
3
CKE to CK disable
I
CLE
Tcke
2
Register set to active command
I
RSA
Tmrd
1
S to command disable
I
CDD
0
Power down exit to command input
I
PEC
1
Notes: 1. I
RCD to IRRD are recommended value.
2. Be valid [DSEL] or [NOP] at next command of self refresh exit.
3. Except [DSEL] and [NOP]
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB52R649E1U-B6B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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
HB52RD168DB-A6F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52RD168DB-A6FL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52RD168DB-B6F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52RD168DB-B6FL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
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