25lc640 Microchip Technology Inc., 25lc640 Datasheet - Page 4

• Manufacturer Part Number: 25lc640
• Description: 64k Spi Bus Serial Eeprom
• Manufacturer: Microchip Technology Inc.

25AA640/25LC640
FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
DS21223H-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
© 2008 Microchip Technology Inc.
n
LSB Out
11
15
4
3
n - 1
12
n - 1
Mode 1,1
Mode 0,0