Datasheet

25AA640/25LC640
DS21223H-page 4 © 2008 Microchip Technology Inc.
FIGURE 1-1: HOLD TIMING
FIGURE 1-2: SERIAL INPUT TIMING
FIGURE 1-3: SERIAL OUTPUT TIMING
CS
SCK
SO
SI
HOLD
17
16 16 17
1918
Don’t Care
5
High-Impedance
n + 2 n + 1 n n - 1
n
n + 2 n + 1 n
n
n - 1
CS
SCK
SI
SO
65
8
7
11
3
LSB In
MSB In
High-Impedance
12
Mode 1,1
Mode 0,0
4
2
CS
SCK
SO
10
9
13
MSB Out
LSB Out
3
15
Don’t Care
SI
Mode 1,1
Mode 0,0
14