 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M39432-10VNC6T Datasheet(PDF) 6 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
M39432-10VNC6T Datasheet(HTML) 6 Page - STMicroelectronics |
|
|
6 / 28 page  M39432 6/28 To access these, A9 is held at VID (as specified in Table 11) and the specific logic levels, shown in Table 5, are applied to the address inputs A0, A1 and A6. The OTP row is accessed with a specific software sequence, as described in the section entitled “Writing the OTP Row” on page 11. Instructions Instructions consist of a sequence of specific Write operations, as summarized in Table 4. The time between two consecutive bytes must be shorter than the time-out value (tWLWL). Each received byte is decoded sequentially, and not executed as a standard Write operation. The overall instruction is executed when the correct number of bytes have been properly received. The sequence must be followed exactly. If an invalid combination of instruction bytes occurs, or time-out between two consecutive bytes, the device logic resets itself to the Read state, when addressing the Flash block, or is directly decoded as a single operation, when addressing the EEPROM block. The M39432 instructions set, as summarized in Table 4, includes: s Program a byte in the Flash memory block s Read the Protection Status of a Flash Sector s Erase instructions: – Flash Sector Erase – Flash Block Erase – Flash Sector Erase Suspend – Flash Sector Erase Resume s EEPROM Power Down s Deep Power Down s Change the EEPROM software write protection: – Enable SDP –Disable SDP s OTP row access: – Write the whole OTP row (once) – Read from the OTP row s Reset and Return s Read identifiers: – Read the Manufacturer Identifier – Read the Flash Block Identifier For efficiency, each instruction consists of a two- byte escape sequence, followed by a command byte or a confirmation byte. The escape sequence consists of writing the value AAh at address 5555h, in the first cycle, and the value 55h at address 2AAAh, in the second cycle. In the case of the Erase instructions, an additional escape sequence is required, for final confirmation that the instruction is the intended one. POWER SUPPLY AND CURRENT CONSUMPTION Power Up The M39432 internal logic is reset, to Read mode, upon a power-up event. All Write operations to the EEPROM are inhibited for the first 5 ms. No new Write cycles can be started when VCC is below VLKO (as specified in Table 11). However, for maximum security of the contents of the memory, and to remove the possibility of a byte being written on the first rising edge of EF, EE or W, at least one of EF, EE or W should be tied to VIH during the power-up process. Stand-by When both EE and EF are high, the memory enters Stand-by mode, and the Data Input/Output pins are placed in the high-impedance state. To reduce the Supply Current to the Stand-by Supply Current, EE and EF should be held within VCC±0.2V. If the Stand-by mode is set during a Program or Erase cycle, the memory continues to use the Supply Current until the cycle is complete. Table 5. Device Identifier Operations Note: 1. X = Don’t Care. Instruction EF EE G W A0 A1 A6 A9 Other Address Lines DQ0 - DQ7 Read Manufacturer Identifier VIL VIH VIL VIH VIL VIL VIL VID Don’t Care 20h Read Flash Block Identifier VIL VIH VIL VIH VIH VIL VIL VID Don’t Care 0E3h Read EEPROM Block Identifier VIH VIL VIL VIH XX VIL VID Don’t Care 64 user- defined bytes |
Similar Part No. - M39432-10VNC6T |
|
Similar Description - M39432-10VNC6T |
|
|
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
