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SST38VF6401B Fiches technique(PDF) 19 Page - Microchip Technology |
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SST38VF6401B Fiches technique(HTML) 19 Page - Microchip Technology |
19 / 58 page 2013 Microchip Technology Inc. Preliminary DS25002B-page 19 SST38VF6401B / SST38VF6402B / SST38VF6403B / SST38VF6404B Global Lock of NVPBs Global Lock of NVPBs Entry 555H AAH 2AAH 55H 555H 50H Set Global Lock Bit XXH A0H XXH 00H Global Lock Bit Status Read3 XXXH Data13 Global Lock of NVPBs Exit XXH 90H XXH 00H Password Commands Password Commands Mode Entry 555H AAH 2AAH 55H 555H 60H Password Pro- gram18 XXH A0H PWAX PWDX Password Read3 PWAX PWDX Submit Pass- word19 00H 25H 00H 03H 00H PWD0 01H PWD1 02H PWD2 03H PWD3 00H 29H Password Commands Mode Exit XXH 90H XXH 00H Program and Settings Register (PSR) PSR Entry 555H AAH 2AAH 55H 555H 40H PSR Program XXH A0H XXXH Data PSR Read3 XXH Data PSR Exit XXH 90H XXH 00H CFI CFI Query Entry 55H 98H Software ID Exit/CFI Exit14 XXH F0H Irreversible Block Lock Irreversible Block Lock20 555H AAH 2AAH 55H 555H 87H XXH 00H 1. Address format A10-A0 (Hex). Addresses A11- A21 can be VIL or VIH, but no other value, for the SST38VF6401B/6402B/ 6403B/6404B command sequence. 2. DQ15-DQ8 can be VIL or VIH, but no other value, for command sequence 3. All read commands are in Bold Italics. 4. Total number of cycles in this command sequence depends on the number of words to be written to the buffer. Additional words are written by repeating Write Cycle 5. Address (WAX) values for Write Cycle 6 and later must have the same A21-A4 values as WAX in Write Cycle 5. WC = Word Count. The value of WC is the number of words to be written into the buffer, minus 1. Maximum WC value is 15 (i.e. F Hex) 5. Erase-Suspend and Erase-Resume commands are also available in Bypass Mode. 6. Once in SEC ID mode, the Word-Program, Write-Buffer Programming, and Bypass Word-Program features can be used to program the SEC ID area. 7. Lock-out Status is read with A7-A0 = FFH. Unlocked: DQ3 = 1 / Locked: DQ3 = 0. Lock status can also be checked by reading Bit ‘0’ in the PSR. 8. The device does not remain in Software Product ID Mode if powered down. 9. With AMS-A1 =0; Microchip Manufacturer ID = 00BFH, is read with A0 = 0, SST38VF6401B/6402B/6403B/6404B Device IDs are read with the results shown in Table 4-3 on page 12. 10. BAX02: AMS-A15 = Block Address; A14-A8 = xxxxxx; A7-A0 = 02 TABLE 5-2: SOFTWARE COMMAND SEQUENCE (CONTINUED) (SHEET 3 OF 3) Command Sequence 1st Bus Cycle 2nd Bus Cycle 3rd Bus Cycle 4th Bus Cycle 5th Bus Cycle 6th Bus Cycle 7th Bus Cycle Addr1 Data 2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 Addr1 Data2 |
Numéro de pièce similaire - SST38VF6401B |
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Description similaire - SST38VF6401B |
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