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25AA640-E/P Datasheet(PDF) 8 Page - Microchip Technology

Part # 25AA640-E/P
Description  64K SPI Bus Serial EEPROM
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

25AA640-E/P Datasheet(HTML) 8 Page - Microchip Technology

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25AA640/25LC640
DS21223G-page 8
 2004 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
23456789 10 11
21 22 23 24 25 26 27 28 29 30 31
1
01
0
0
0
0
0
1
15 14 13 12
210
76543210
Instruction
16 Bit Address
Data Out
High-impedance
SO
SI
CS
00
0
0
0
0
0
1
15 14 13 12
21
0
76
54
321
0
Instruction
16 Bit Address
Data Byte
High-impedance
Twc
SI
CS
9 1011
212223 2425 262728 2930 31
00
0
0
0
0
0
1
15 14 13 12
21
0
76
54321
0
Instruction
16 Bit Address
Data Byte 1
SCK
0
234
567
1
8
SI
CS
41 42 43
46 47
7
65432
10
Data Byte n (32 max)
SCK
32
34 35 36 37 38 39
33
40
7
6543
210
Data Byte 3
7
6543
210
Data Byte 2
44 45



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