Owner's manual
11
AT45DB041B
1938F–DFLSH–10/02
Note: r = Reserved Bit
P = Page Address Bit
B = Byte/Buffer Address Bit
x = Don’t Care
Table 4. Detailed Bit-level Addressing Sequence
Opcode Opcode
Address Byte Address Byte Address Byte
Additional
Don’t Care
Bytes
Required
50H 01010000rrrrPPPPPPPPxxxxxxxxxxxx N/A
52H 01010010rrrrPPPPPPPPPPPBBBBBBBBB 4 Bytes
53H 01010011rrrrPPPPPPPPPPPxxxxxxxxx N/A
54H 01010100xxxxxxxxxxxxxxxBBBBBBBBB 1 Byte
55H 01010101rrrrPPPPPPPPPPPxxxxxxxxx N/A
56H 01010110xxxxxxxxxxxxxxxBBBBBBBBB 1 Byte
57H 01010111 N/A N/A N/A N/A
58H 01011000rrrrPPPPPPPPPPPxxxxxxxxx N/A
59H 01011001rrrrPPPPPPPPPPPxxxxxxxxx N/A
60H 01100000rrrrPPPPPPPPPPPxxxxxxxxx N/A
61H 01100001rrrrPPPPPPPPPPPxxxxxxxxx N/A
68H 01101000rrrrPPPPPPPPPPPBBBBBBBBB 4 Bytes
81H 10000001rrrrPPPPPPPPPPPxxxxxxxxx N/A
82H 10000010rrrrPPPPPPPPPPPBBBBBBBBB N/A
83H 10000011rrrrPPPPPPPPPPPxxxxxxxxx N/A
84H 10000100xxxxxxxxxxxxxxxBBBBBBBBB N/A
85H 10000101rrrrPPPPPPPPPPPBBBBBBBBB N/A
86H 10000110rrrrPPPPPPPPPPPxxxxxxxxx N/A
87H 10000111xxxxxxxxxxxxxxxBBBBBBBBB N/A
88H 10001000rrrrPPPPPPPPPPPxxxxxxxxx N/A
89H 10001001rrrrPPPPPPPPPPPxxxxxxxxx N/A
D2H 11010010rrrrPPPPPPPPPPPBBBBBBBBB 4 Bytes
D4H 11010100xxxxxxxxxxxxxxxBBBBBBBBB 1 Byte
D6H 11010110xxxxxxxxxxxxxxxBBBBBBBBB 1 Byte
D7H 11010111 N/A N/A N/A N/A
E8H 11101000rrrrPPPPPPPPPPPBBBBBBBBB 4 Bytes
R
eserve
d
R
eserve
d
R
eserve
d
R
eserve
d
PA
10
PA9
PA8
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
1
PA
0
BA
8
BA7
BA6
BA
5
BA
4
BA
3
BA
2
BA
1
BA
0