AN2665

1.2.5 Access Type Summary

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

Table 1-1. Access Type Summary Table
Command	Op_code	Address phase length (bytes)		Data phase length (bytes)
Command	Op_code	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:

Command not applicable for this device.
Command is applicable for SST25VF040B/080B devices.
Command is applicable for SST25VF010A/020 devices.
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.

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