 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M13S2561616A-6BG Datasheet(PDF) 9 Page - Elite Semiconductor Memory Technology Inc. |
|
||||||||||||||||||||||||||||||
M13S2561616A-6BG Datasheet(HTML) 9 Page - Elite Semiconductor Memory Technology Inc. |
|
|
9 / 49 page  ESMT M13S2561616A Elite Semiconductor Memory Technology Inc. Publication Date : Sep. 2009 Revision : 2.0 9/49 Basic Functionality Power-Up and Initialization Sequence The following sequence is required for POWER UP and Initialization. 1. Apply power and attempt to maintain CKE at a low state (all other inputs may be undefined.) - Apply VDD before or at the same time as VDDQ. - Apply VDDQ before or at the same time as VTT & VREF). 2. Start clock and maintain stable condition for a minimum of 200us. 3. The minimum of 200us after stable power and clock (CLK, CLK ), apply NOP & take CKE high. 4. Issue precharge commands for all banks of the device. *1 5. Issue EMRS to enable DLL. (To issue “DLL Enable” command, provide “Low” to A0, “High” to BA0 and “Low” to all of the rest address pins, A1~A12 and BA1) *1 6. Issue a mode register set command for “DLL reset”. The additional 200 cycles of clock input is required to lock the DLL. (To issue DLL reset command, provide “High” to A8 and “Low” to BA0) *2 7. Issue precharge commands for all banks of the device. 8. Issue 2 or more auto-refresh commands. 9. Issue a mode register set command with low to A8 to initialize device operation. *1 Every “DLL enable” command resets DLL. Therefore sequence 6 can be skipped during power up. Instead of it, the additional 200 cycles of clock input is required to lock the DLL after enabling DLL. *2 Sequence of 6 & 7 is regardless of the order. CLK CL K Co m m a n d 0 1 23 45678910 11 12 13 14 15 16 17 18 19 t RP pr e c h a r g e Al l Ban k s EM R S MR S Dl l R e s e t t RP pr ech a r g e Al l B a n k s 1s t A u t o Re f r e s h t RF C 2nd A u t o Re f r e s h t RF C Mode Regi ster Set An y C o m m and m i n . 20 0 C y c l e P o we r up & I n i t i a l i z a t i on S e q uenc e |
Similar Part No. - M13S2561616A-6BG |
|
Similar Description - M13S2561616A-6BG |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
