參數(shù)資料
型號(hào): HYB18T512800AC-37
廠商: INFINEON TECHNOLOGIES AG
英文描述: M39012 MIL RF CONNECTOR
中文描述: 512兆雙數(shù)據(jù)速率2內(nèi)存
文件頁(yè)數(shù): 56/96頁(yè)
文件大小: 2153K
代理商: HYB18T512800AC-37
HYB18T512[400/800/160]A[C/F]–[3.7/5]
512-Mbit Double-Data-Rate-Two SDRAM
Functional Description
Data Sheet
56
Rev. 1.13, 2004-05
09112003-SDM9-IQ3P
2.8.3
The following table summarizes the minimum
command delays between Read, Read w/AP, Write,
Read or Write to Precharge Command Spacing Summary
Write w/AP to the Precharge commands to the same
banks and Precharge-All commands.
Table 14
From Command
Minimum Command Delays
To Command
Minimum Delay between “From
Command” to “To Command”
AL + BL/2 + max(
t
RTP
, 2) - 2
Units Notes
READ
PRECHARGE (to same banks as
READ)
PRECHARGE-ALL
PRECHARGE (to same banks as
READ w/AP)
PRECHARGE-ALL
PRECHARGE (to same banks as
WRITE)
PRECHARGE-ALL
PRECHARGE (to same banks as
WRITE w/AP)
PRECHARGE-ALL
PRECHARGE (to same banks as
PRECHARGE)
PRECHARGE-ALL
PRECHARGE
PRECHARGE-ALL
t
CK
1)2)
1)
2)
RU{
t
RTP
(ns) /
t
CK
(ns)} must be used, where RU stands for “Round Up”
For a given bank, the precharge period should be counted from the latest precharge command, either one bank precharge or precharge-
all, issued to that bank. The precharge period is satisfied after
t
RP
or
t
RP, all
depending on the latest precharge command issued to that bank
RU{
t
WR
(ns) /
t
CK
(ns)} must be used, where RU stands for “Round Up”
AL + BL/2 + max(
t
RTP
, 2) - 2
AL + BL/2 + max(
t
RTP
, 2) - 2
t
CK
t
CK
1)2)
READ w/AP
1)2)
AL + BL/2 + max(
t
RTP
, 2) - 2
WL + BL/2 +
t
WR
t
CK
t
CK
1)2)
WRITE
2)3)
3)
WL + BL/2 +
t
WR
WL + BL/2 + WR
t
CK
t
CK
2)3)
WRITE w/AP
2)
WL + BL/2 + WR
1
t
CK
t
CK
2)
PRECHARGE
2)
1
1
1
t
CK
t
CK
t
CK
2)
PRECHARGE-ALL
2)
2)
相關(guān)PDF資料
PDF描述
HYB18T512800AC-5 M39012 MIL RF CONNECTOR
HYB18T512800AC DDR2 Registered Memory Modules
HYB18T512800AF DDR2 Registered Memory Modules
HYB18T512800AF-37 512-Mbit Double-Data-Rate-Two SDRAM
HYB18T512800AF-5 512-Mbit Double-Data-Rate-Two SDRAM
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