25AA160 Datasheet, PDF (8/22 Pages) Microchip Technology – 16K SPI Bus Serial EEPROM

25AA160/25LC160/25C160
FIGURE 3-1:
CS
READ SEQUENCE
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11
21 22 23 24 25 26 27 28 29 30 31
instruction
16-bit address
0 0 0 0 0 0 1 1 15 14 13 12
210
High-impedance
data out
76543210
FIGURE 3-2:
BYTE WRITE SEQUENCE
CS
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11
Twc
21 22 23 24 25 26 27 28 29 30 31
instruction
16-bit address
data byte
0 0 0 0 0 0 1 0 15 14 13 12
2 1 07 6 5 4 3 2 1 0
High-impedance
FIGURE 3-3:
CS
PAGE WRITE SEQUENCE
SCK
SI
0 1 2 3 4 5 6 7 8 9 10 11
21 22 23 24 25 26 27 28 29 30 31
instruction
16-bit address
data byte 1
0 0 0 0 0 0 1 0 15 14 13 12
210765 432 10
CS
SCK
SI
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
data byte 2
data byte 3
7654321076543210
data byte n (16 max)
76543210
DS21231D-page 8
 2004 Microchip Technology Inc.