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25LC040A Datasheet(PDF) 10 Page - Microchip Technology

Part # 25LC040A
Description  1K-4K SPI Serial EEPROM High Temp Family Data Sheet
PDF  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

25LC040A Datasheet(HTML) 10 Page - Microchip Technology

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25LCXXXA
DS22136B-page 10
Preliminary
© 2009 Microchip Technology Inc.
FIGURE 3-2:
BYTE WRITE SEQUENCE
FIGURE 3-3:
PAGE WRITE SEQUENCE
SI
CS
910 11
00
A8
0
0
0
01
76
5
432
10
Data Byte
SCK
0
2
3
4567
18
Instruction+Address MSb
Lower Address Byte
A7 A6 A5 A4 A3
A1 A0
A2
12 13 14 15 16 17 18 19 20 21 22 23
Twc
SO
High-impedance
For the 24LC010A device both A8 and A7 are don’t cares.
For the 24LC020A device A8 is a don’t care.
SI
CS
910 11
00
A8
0
0
0
01
7
6
5
432
10
Data Byte 1
SCK
0
2
34567
18
SI
CS
33 34 35
38 39
765
4321
0
Data Byte n (16 max.)
SCK
24
26 27 28 29 30 31
25
32
76
54321
0
Data Byte 3
76
54321
0
Data Byte 2
36 37
Instruction+Address MSb
Lower Address Byte
A7 A6 A5 A4 A3
A1 A0
A2
12 13 14 15 16 17 18 19 20 21 22 23
For the 24LC010A device both A8 and A7 are don’t cares.
For the 24LC020A device A8 is a don’t care.



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