23a640 Microchip Technology Inc., 23a640 Datasheet - Page 4

• Manufacturer Part Number: 23a640
• Description: 64k Spi Bus Low-power Serial Sram
• Manufacturer: Microchip Technology Inc.

23A640/23K640
FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
DS22126B-page 4
SCK
SO
CS
SCK
SI
SO
CS
HOLD
SI
SCK
CS
SO
SI
HOLD TIMING
SERIAL INPUT TIMING
SERIAL OUTPUT TIMING
2
n + 2
n + 2
5
MSB out
MSB in
9
6
12
10
n + 1
15
n + 1
High-Impedance
Don’t Care
n
16
7
17
n
Preliminary
High-Impedance
Don’t Care
13
8
15
18
LSB in
16
3
n
© 2009 Microchip Technology Inc.
n
5
LSB out
11
4
14
3
n - 1
n - 1