Electronic Components Datasheet Search |
|
HY29LV400 Datasheet(PDF) 10 Page - Hynix Semiconductor |
|
HY29LV400 Datasheet(HTML) 10 Page - Hynix Semiconductor |
10 / 40 page 10 Rev. 1.0/Nov. 01 HY29LV400 START (Note: All sectors must be protected prior to unprotecting any sector) TRYCNT = 1 SNUM = 0 RESET# = V ID Wait 1 us Write 0x60 to device Write 0x60 to Address Set Address: A[17:12] = Sector SNUM A[6] = 1, A]1] = 1, A]0] = 0 Write 0x40 to Address Read from Address Data = 0x00? SNUM = 10? YES TRYCNT = 1000? NO Increment TRYCNT NO YES DEVICE FAILURE YES NO RESET# = V IH Write Reset Command SECTOR UNPROTECT COMPLETE SNUM = SNUM + 1 Wait 15 ms Set Address: A[6] = 1, A]1] = 1, A]0] = 0 Figure 2. Sector Unprotect Algorithm START RESET# = V ID (All protected sectors become unprotected) Perform Program or Erase Operations RESET# = V IH (All previously protected sectors return to protected state) TEMPORARY SECTOR UNPROTECT COMPLETE Figure 3. Temporary Sector Unprotect Algorithm grammed with its corresponding programming al- gorithm. Two methods are provided for accessing the Elec- tronic ID data. The first requires V ID on address pin A[9], with additional requirements for obtain- ing specific data items listed in Table 4. The Elec- tronic ID data can also be obtained by the host through specific commands issued via the com- mand register, as described in the ‘Device Com- mands’ section of this data sheet. While in the high-voltage Electronic ID mode, the system may read at specific addresses to obtain certain device identification and status information: n A read cycle at address 0xXXX00 retrieves the manufacturer code. n A read cycle at address 0xXXX01 in Word mode or 0xXXX02 in Byte mode returns the device code. n A read cycle containing a sector address (SA) in A[17:12] and the address 0x02 in Word mode or 0x04 in Byte mode, returns 0x01 if that sec- tor is protected, or 0x00 if it is unprotected. |
Similar Part No. - HY29LV400 |
|
Similar Description - HY29LV400 |
|
|
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 |