25AA640 MICROCHIP [Microchip Technology], 25AA640 Datasheet - Page 4

• Manufacturer Part Number: 25AA640
• Description: 64K SPI Bus Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

25AA640/25LC640/25C640
FIGURE 1-2:
FIGURE 1-3:
FIGURE 1-4:
DS21223A-page 4
SCK
CS
SO
SCK
HOLD
SI
SO
CS
SI
SCK
SO
CS
SI
Mode 1,1
Mode 0,0
Tsu
HOLD TIMING
SERIAL INPUT TIMING
SERIAL OUTPUT TIMING
n+2
T
n+2
HI
MSB in
MSB out
T
V
T
CSS
n+1
T
HD
n+1
T
high impedance
HS
T
LO
T
n
don’t care
HH
T
T
R
HZ
n
Preliminary
high impedance
don’t care
T
HO
T
F
T
HS
T
T
CSH
HV
T
LSB in
HH
T
T
n
CSD
SU
n
1997 Microchip Technology Inc.
LSB out
T
T
n-1
T
T
CLD
CSH
CLE
DIS
n-1
Mode 1,1
Mode 0,0