2004 Microchip Technology Inc.
DS21227E-page 3
25AA320/25LC320/25C320
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I):
Automotive (E):
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
V
CC
= 1.8V to 5.5V
V
CC
= 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Conditions
1
F
CLK
Clock Frequency
—
—
—
100
250
500
150
250
475
500
30
50
50
50
100
100
—
—
150
230
475
150
230
475
50
50
—
—
—
0
—
—
—
100
100
200
100
100
200
100
150
200
100
150
200
—
3
2
1
—
—
—
—
—
—
—
—
—
—
—
—
—
2
2
—
—
—
—
—
—
—
—
150
230
—
—
200
250
—
—
—
—
—
—
—
—
—
—
—
—
—
5
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μ
s
μ
s
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
ms
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
—
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
(Note 1)
(Note 1)
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
—
—
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
(Note 1)
V
CC
= 4.5V to 5.5V
(Note 1)
V
CC
= 2.5V to 5.5V
(Note 1)
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
(Note 1)
V
CC
= 2.5V to 5.5V
(Note 1)
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
V
CC
= 2.5V to 5.5V
V
CC
= 1.8V to 5.5V
—
2
T
CSS
CS Setup Time
3
T
CSH
CS Hold Time
4
5
T
CSD
T
SU
CS Disable Time
Data Setup Time
6
T
HD
Data Hold Time
7
8
9
T
R
T
F
T
HI
CLK Rise Time
CLK Fall Time
Clock High Time
10
T
LO
Clock Low Time
11
12
13
T
CLD
T
CLE
T
V
Clock Delay Time
Clock Enable Time
Output Valid from
Clock Low
14
15
T
HO
T
DIS
Output Hold Time
Output Disable Time
16
T
HS
HOLD Setup Time
17
T
HH
HOLD Hold Time
18
T
HZ
HOLD Low to Output
High-Z
19
T
HV
HOLD High to Output
Valid
20
T
WC
Internal Write Cycle
Time
Endurance
21
—
1M
—
E/W
Cycles
(Note 2)
Note
1:
This parameter is periodically sampled and not 100% tested.
2:
This parameter is not tested but established by characterization. For endurance estimates in a specific application,
please consult the Total Endurance Model which can be obtained from Microchip’s web site at: www.microchip.com.