25lc640 Microchip Technology Inc., 25lc640 Datasheet - Page 3

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

TABLE 1-2:
© 2008 Microchip Technology Inc.
AC CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Param.
No.
Note 1: This parameter is periodically sampled and not 100% tested.
2: F
3: This parameter is not tested but established by characterization. For endurance estimates in a specific application,
F
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
—
CSS
CSH
CSD
SU
CLD
CLE
R
WC
CLK
HD
F
HI
LO
V
HO
DIS
HS
HH
HZ
HV
Sym
please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at: www.microchip.com.
CLK
max. = 2.5 MHz for T
AC CHARACTERISTICS
Clock Frequency
CS Setup Time
CS Hold Time
CS Disable Time
Data Setup Time
Data Hold Time
CLK Rise Time
CLK Fall Time
Clock High Time
Clock Low Time
Clock Delay Time
Clock Enable Time
Output Valid from
Clock Low
Output Hold Time
Output Disable Time
HOLD Setup Time
HOLD Hold Time
HOLD Low to Output
High-Z
HOLD High to Output
Valid
Internal Write Cycle
Time
Endurance
Characteristic
A
> 85°C.
Industrial (I):
Automotive (E): T
Min
100
250
500
150
250
475
500
100
100
150
230
475
150
230
475
100
100
200
100
100
200
100
150
200
100
150
200
1M
30
50
50
50
50
50
—
—
—
—
—
—
—
—
—
—
—
—
0
T
Max
A
A
150
230
475
200
250
500
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
2
1
2
2
5
= -40°C to +85°C
= -40°C to +125°C
Cycles
25AA640/25LC640
Units
MHz
MHz
MHz
E/W
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
(Note 1)
(Note 1)
V
V
V
V
V
V
V
V
V
(Note 1)
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
(Note 3)
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 4.5V to 5.5V (Note 2)
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V (Note 1)
= 2.5V to 5.5V (Note 1)
= 1.8V to 5.5V (Note 1)
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
= 4.5V to 5.5V (Note 1)
= 2.5V to 5.5V (Note 1)
= 1.8V to 5.5V (Note 1)
= 4.5V to 5.5V
= 2.5V to 5.5V
= 1.8V to 5.5V
V
V
CC
CC
= 1.8V to 5.5V
= 4.5V to 5.5V
Conditions
DS21223H-page 3