Datasheet

25AA040/25LC040/25C040
DS21204E-page 8 © 2006 Microchip Technology Inc.
FIGURE 3-1: READ SEQUENCE
FIGURE 3-2: BYTE WRITE SEQUENCE
FIGURE 3-3: PAGE WRITE SEQUENCE
SO
SI
SCK
CS
0 23456789101112131415161718192021221
01A800001A7 6 5 4 1A0
76543210
Instruction Lower Address Byte
Data Out
High-impedance
23
32
Don’t Care
SO
SI
SCK
CS
0 23456789101112131415161718192021221
00A80000 A7 6 5 4
1A0
76543210
Instruction Lower Address Byte
Data Byte
High-impedance
23
32
1
TWC
SI
CS
91011 1415161718192021222324
00A800001A7 6 5 4
21076543210
Instruction Lower Address Byte Data Byte 1
SCK
0 23456718
SI
CS
34 35 36 39 40
76543210
Data Byte n (16 max)
SCK
25 27 28 29 30 31 3226
33
76543210
Data Byte 3
76543210
Data Byte 2
37 38
3
13