25LC640-E/ST MICROCHIP [Microchip Technology], 25LC640-E/ST Datasheet - Page 4
25LC640-E/ST
Manufacturer Part Number
25LC640-E/ST
Description
64K SPI Bus Serial EEPROM
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.25LC640-EST.pdf
(24 pages)
- Current page: 4 of 24
- Download datasheet (342Kb)
25AA640/25LC640
FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
DS21223G-page 4
SCK
SO
CS
SI
SCK
HOLD
SO
CS
SI
SCK
SO
CS
SI
Mode 1,1
Mode 0,0
5
2
n + 2
n + 2
MSB In
MSB Out
HOLD TIMING
SERIAL INPUT TIMING
SERIAL OUTPUT TIMING
9
13
10
6
n + 1
n + 1
High-impedance
16
Don’t Care
n
17
18
7
n
High-impedance
Don’t Care
14
8
16
19
3
LSB In
17
5
n
2004 Microchip Technology Inc.
n
LSB Out
11
15
4
3
n - 1
12
n - 1
Mode 1,1
Mode 0,0
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