Access Type Summary

The following table summarizes the access types and their related lengths:

Table 1. Access Type Summary Table
Command Op_code Address phase length (bytes) Data phase length (bytes)
25xx256 SST25VFxxxx MOSI line MISO line
WREN 0000 0110b (06H) 0 0 0 0
WRDI 0000 0100b (04H) 0 0 0 0
RDSR 0000 0101b (05H) 0 0 0 1(4)
WRSR 0000 0001b (01H) 0 0 1 0
READ 0000 0011b (03H) 2 3 0 1 to ∞(4)
WRITE 0000 0010b (02H) 2 N/A(1) 1 to 64 0
BYTE PROGRAM 0000 0010b (02H) N/A(1) 3 1 0
AAI-Word-Program 1010 1101b (ADH) N/A(1) 3(2) 2 0
AAI-Program 1010 1111b (AFH) N/A(1) 3(3) 1 0
4 KByte Sector- Erase 0010 0000b (20H) N/A(1) 3 0 0
32 KByte Block- Erase 0101 0010b (52H) N/A(1) 3 0 0
64 KByte Block- Erase 1101 1000b (D8H) N/A(1) 3(2) 0 0
CHIP ERASE 0110 0000b (60H) or 1100 0111b (C7H) N/A(1) 0 0 0
RDID 1001 0000b (90H) or 1010 1011b (ABH) N/A(1) 3 0 1 to ∞(4)
Note:
  1. 1.Command not applicable for this device.
  2. 2.Command is applicable for SST25VF040B/080B devices.
  3. 3.Command is applicable for SST25VF010A/020 devices.
  4. 4.Data phase length (bytes) for SST25VFxxxx devices is 1 to ∞. The data is read continuously with ongoing clock cycles until terminated by a low to high transition on CE# for SST25VFxxxx devices.