 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
NT5CB256M8FN датащи(PDF) 20 Page - Nanya Technology Corporation. |
|
|
|||||||||||||||||||||||||||||
NT5CB256M8FN датащи(HTML) 20 Page - Nanya Technology Corporation. |
|
|
20 / 163 page  DDR3(L) 2Gb SDRAM NT5CB(C)256M8FN / NT5CB(C)128M16FP Version 1.7 20 Nanya Technology Cooperation © 04/2015 All Rights Reserved. Mode Register MR1 The Mode Register MR1 stores the data for enabling or disabling the DLL, output strength, Rtt_Nom impedance, additive latency, WRITE leveling enable and Qoff. The Mode Register 1 is written by asserting low on , RA, A, WE high on BA0 and low on BA1 and BA2, while controlling the states of address pins according to the following figure. MR1 Definition BA2 BA1 BA0 A15-A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ 0 0 Qoff TDQS 0 Rtt_Nom 0 Level Rtt_Nom D.I.C Rtt_Nom D.I.C DLL A11 TDQS A9 A6 A2 A4 A3 0 Disabled 0 0 0 0 0 1 Enabled 0 0 1 0 1 0 1 0 1 0 BA1 BA0 MR select 0 1 1 1 1 0 0 MR0 1 0 0 0 1 MR1 1 0 1 A0 1 0 MR2 1 1 0 0 1 1 MR3 1 1 1 1 A7 A5 A1 0 0 0 1 0 1 1 0 1 1 A12 0 1 Output buffer disabled RZQ/12 RZQ/8 Reserved Reserved AL Disabled CL-1 CL-2 Reserved AL DLL Enable Enable Disable RZQ/6 Reserved Qoff Output buffer enabled Output Driver Impedance RZQ/7 Reserved Write Leveling enable Disabled RZQ/4 Disabled Enabled MR select Rtt_Nom RZQ/2 RZQ/6 * 1 : BA2 and A8, A10, and A13 ~ A15 are RFU and must be programmed to 0 during MRS. *2: Outputs disabled - DQs, DQSs, s. *3: RZQ = 240 *4: In Write leveling Mode (MR1[bit7] = 1) with MR1[bit12]=1, all RTT_Nom settings are allowed; in Write Leveling Mode (MR1[bit7] = 1) with MR1[bit12]=0, only RTT_Nom settings of RZQ/2, RZQ/4 and RZQ/6 are allowed. *5: If RTT_Nom is used during Writes, only the values RZQ/2, RZQ/4 and RZQ/6 are allowed. |
|
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 |
| 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
