
25AA160/25LC160/25C160
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 = 4.5V to 5.5V (25C160 only)
Param.
No.
1
Sym.
F CLK
Characteristic
Clock Frequency
Min.
—
Max.
3
Units
MHz
Conditions
V CC = 4.5V to 5.5V
—
—
2
1
MHz
MHz
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
2
T CSS
CS Setup Time
100
—
ns
V CC = 4.5V to 5.5V
250
500
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
3
T CSH
CS Hold Time
150
—
ns
V CC = 4.5V to 5.5V
250
475
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
4
5
T CSD
T SU
CS Disable Time
Data Setup Time
500
30
—
—
ns
ns
—
V CC = 4.5V to 5.5V
50
50
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
6
T HD
Data Hold Time
50
—
ns
V CC = 4.5V to 5.5V
100
100
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
7
8
9
T R
T F
T HI
CLK Rise Time
CLK Fall Time
Clock High Time
—
—
150
2
2
—
μ s
μ s
ns
(Note 1)
(Note 1)
V CC = 4.5V to 5.5V
230
475
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
10
T LO
Clock Low Time
150
—
ns
V CC = 4.5V to 5.5V
230
475
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
11
12
T CLD
T CLE
Clock Delay Time
Clock Enable Time
50
50
—
—
ns
ns
—
—
13
T V
Output Valid from
Clock
—
150
ns
V CC = 4.5V to 5.5V
Low
—
—
230
475
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
14
15
T HO
T DIS
Output Hold Time
Output Disable Time
0
—
—
200
ns
ns
(Note 1)
V CC = 4.5V to 5.5V (Note 1)
—
—
250
500
ns
ns
V CC = 2.5V to 4.5V (Note 1)
V CC = 1.8V to 2.5V (Note 1)
16
T HS
HOLD Setup Time
100
—
ns
V CC = 4.5V to 5.5V
100
200
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
17
T HH
HOLD Hold Time
100
—
ns
V CC = 4.5V to 5.5V
100
200
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
18
T HZ
HOLD Low to Output High-
Z
100
150
—
—
ns
ns
V CC = 4.5V to 5.5V (Note 1)
V CC = 2.5V to 4.5V (Note 1)
200
—
ns
V CC = 1.8V to 2.5V (Note 1)
19
T HV
HOLD High to Output Valid
100
—
ns
V CC = 4.5V to 5.5V
150
200
—
—
ns
ns
V CC = 2.5V to 4.5V
V CC = 1.8V to 2.5V
20
21
T WC
—
Internal Write Cycle Time
Endurance
—
1M
5
—
ms
E/W
—
(Note 2)
Cycles
Note 1: This parameter is periodically sampled and not 100% tested.
2: This parameter is not tested but ensured 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.
? 2004 Microchip Technology Inc.
DS21231D-page 3