поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

405EX датащи(PDF) 63 Page - Applied Micro Circuits Corporation

номер детали 405EX
подробное описание детали  PowerPC 405EX Embedded Processor
PDF  67 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  AMCC [Applied Micro Circuits Corporation]
домашняя страница  http://www.amcc.com
Logo AMCC - Applied Micro Circuits Corporation

405EX датащи(HTML) 63 Page - Applied Micro Circuits Corporation

Back Button 405EX Datasheet HTML 59Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 60Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 61Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 62Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 63Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 64Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 65Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 66Page - Applied Micro Circuits Corporation 405EX Datasheet HTML 67Page - Applied Micro Circuits Corporation  
Zoom Inzoom in Zoom Outzoom out
 63 / 67 page
background image
PPC405EX – PowerPC 405EX Embedded Processor
Revision 1.09 - August 21, 2007
AMCC Proprietary
63
Preliminary Data Sheet
In the following example, the data strobes (DQS) and the data are shown to be coincident. There is actually a slight
skew as specified by the SDRAM specifications, and there can be additional skew due to loading and signal
routing. It is recommended that the signal length for all of the DQS signals be matched.
The following example shows the timing relationship between SDRAM DDR Data at the input pin and storing the
data in Stage 1.
Table 24. I/O Timing—DDR SDRAM Read Timing TSD and THD
1. TSD and THD are measured under worst case conditions.
2. Clock speed for the values in the table is 200MHz.
3. The time values in the table include 1/4 of a cycle at 200MHz (5ns x 0.25 = 1.25 ns).
4. To obtain adjusted TSD and THD values for lower clock frequencies, subtract 0.75 ns from the values in the table and add 1/4
of the cycle time for the lower clock frequency (e.g., TSD - 1.25 + 0.25TCYC).
Signal Names
Reference Signal
Read Data vs DQS Set up
TSD (ns)
Read Data vs DQS Hold
THD (ns)
MemData00:07
DQS0
0.35
0.45
MemData08:15
DQS1
0.35
0.45
MemData16:23
DQS2
0.35
0.45
MemData24:31
DQS3
0.35
0.45
ECC0:7
DQS4
0.35
0.45



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com