Electronic Components Datasheet Search |
|
X76F200WG Datasheet(PDF) 7 Page - IC MICROSYSTEMS |
|
X76F200WG Datasheet(HTML) 7 Page - IC MICROSYSTEMS |
7 / 16 page X76F200 7 PASSWORDS Passwords are changed by sending the "change read password" or "change write password" commands in a normal sector write operation. A full eight bytes containing the new password must be sent, following successful transmission of the current write password and a valid password ACK response. The user can use a repeated ACK Polling command to check that a new password has been written correctly. An ACK indicates that the new password is valid. There is no way to read any of the passwords. RESPONSE TO RESET (DEFAULT = 19 20 AA 55) The ISO Response to reset is controlled by the RST and CLK pins. When RST is pulsed high during a clock pulse, the device will output 32 bits of data, one bit per clock, and it resets to the standby state. This conforms to the ISO standard for “synchronous response to reset”. The part must not be in a write cycle for the response to reset to occur. After initiating a nonvolatile write cycle the RST pin must not be pulsed until the nonvolatile write cycle is complete. If not, the ISO response will not be activated. If the RST is pulsed HIGH and the CLK is within the RST pulse (meet the t NOLspec.) in the middle of an ISO transaction, it will output the 32 bit sequence again (starting at bit 0). Otherwise, this aborts the ISO operation and the part returns to standby state. If the RST is pulsed HIGH and the CLK is outside the RST pulse (in the middle of an ISO transaction), this aborts the ISO operation and the part returns to standby state. If there is power interrupted during the Response to Reset, the response to reset will be aborted and the part will return to the standby state. A Response to Reset is not available during a nonvolatile write cycle. Figure 7. Response to RESET (RST) SCK SO RST Byte 0 MSB LSB LSB MSB 1 LSB MSB LSB MSB 2 3 10 0 00 11 1 0 0 0 0000 1 0 0 0 0 1 1 0 1 1 1 0 0 0 1 1 0 ABSOLUTE MAXIMUM RATINGS* Temperature under Bias.....................–65°C to +135°C Storage Temperature..........................–65°C to +150°C Voltage on any Pin with Respect to VSS....................................... –1V to +7V D.C. Output Current .................................................. 5mA Lead Temperature (Soldering, 10 seconds)..................................300°C *COMMENT Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and the functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. |
Similar Part No. - X76F200WG |
|
Similar Description - X76F200WG |
|
|
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 |