 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MH8S72DBFD-7 Datasheet(PDF) 5 Page - Mitsubishi Electric Semiconductor |
|
||||||||||||||||||||||||||||||
MH8S72DBFD-7 Datasheet(HTML) 5 Page - Mitsubishi Electric Semiconductor |
|
|
5 / 56 page  603,979,776-BIT ( 8,388,608-WORD BY 72-BIT ) Synchronous DYNAMIC RAM MH8S72DBFD-7,-8 30/Sep. /1999 MIT-DS-0351-0.0 Preliminary Spec. Some contents are subject to change without notice. MITSUBISHI LSIs MITSUBISHI ELECTRIC BASIC FUNCTIONS /S Chip Select : L=select, H=deselect /RAS Command /CAS Command /WE Command CKE Ref resh Option @ref resh command A10 Precharge Option @precharge or read/write command CK def ine basic commands The MH8S72DBFD provides basic functions,bank(row)activate,burs t read / write, bank(row)precharge,and auto / self refresh. Each command is defined by control s ignals of /RAS,/CAS and /WE at CK ris ing edge. In addition to 3 signals,/S,CKE and A10 are used as chip select,refresh option,and precharge option,respectively. To know the detailed definition of commands please see the command truth table. Activate(ACT) [/RAS =L, /CAS = /WE =H] Read(READ) [/RAS =H,/CAS =L, /WE =H] Write(WRITE) [/RAS =H, /CAS = /WE =L] Precharge(PRE) [/RAS =L, /CAS =H,/WE =L] Auto-Refresh(REFA) [/RAS =/CAS =L, /WE =CKE =H] ACT command activates a row in an idle bank indicated by BA. READ command starts burst read from the active bank indicated by BA.First output data appears after /CAS latency. When A10 =H at this command,the bank is deactivated after the burst read(auto-precharge,READA). WRITE command starts burst write to the active bank indicated by BA. Total data length to be written is set by burst length. When A10 =H at this command, the bank is deactivated after the burs t write(auto-precharge,WRITEA). PRE command deactivates the active bank indicated by BA. This command also term inates burst read / write operation. When A10 =H at this command, both banks are deactivated(precharge all, PREA). PEFA command starts auto-refresh cycle. Refresh address including bank address are generated internally. After this command, the banks are precharged automatically. 5 |
Similar Part No. - MH8S72DBFD-7 |
|
Similar Description - MH8S72DBFD-7 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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
