25AA020A MICROCHIP [Microchip Technology], 25AA020A Datasheet - Page 8

• Manufacturer Part Number: 25AA020A
• Description: 2K SPI Bus Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

25AA020A/25LC020A
FIGURE 2-2:
FIGURE 2-3:
DS21833C-page 8
CS
SO
SCK
SI
SCK
SCK
CS
CS
SI
SI
0
0
0
0
24
7
1
0
1
0
25
0
6
2
0
2
Instruction
Instruction
BYTE WRITE SEQUENCE
PAGE WRITE SEQUENCE
5
26 27 28 29 30 31
3
0
data byte 2
3
0
4
0
4
0
4
3
5
0
5
0
1
2
6
6
1
0
1
7
0
7
A
0
8
7
A
8
7
A
32
7
9 10 11
A
6
9 10 11
6
Address byte
high-impedance
A
33 34 35
6
Preliminary
A
5
Address byte
5
A
data byte 3
5
4
A
4
A
12 13 14 15 16 17 18 19 20 21 22 23
4
3
12 13 14 15 16 17 18 19 20 21 22 23
A
3
A
36 37
3
2
A
A
2
2
1
A
A
38 39
1
1
0
A
0
0
7
7
6
6
7
5
data byte 1
data byte n (16 max)
data byte
5
6
4
© 2006 Microchip Technology Inc.
4
5
3
3
4
2
2
3
1
2
1
0
1
0
0
Twc