2004 Microchip Technology Inc.
DS21191M-page 3
24AA128/24LC128/24FC128
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
Automotive (E):
V
CC
= +1.8V to 5.5V
V
CC
= +2.5V to 5.5V
T
A
= -40°C to +85°C
T
A
= -40°C to 125°C
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Conditions
1
F
CLK
Clock frequency
—
—
—
—
100
400
400
1000
—
—
—
—
—
—
—
—
1000
300
300
300
100
—
—
—
—
—
—
—
—
—
kHz
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
≤
5.5V 24FC128
All except, 24FC128
1.8V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5V
≤
V
CC
≤
5.5V 24FC128
(Note 2)
2
T
HIGH
Clock high time
4000
600
600
500
4700
1300
1300
500
—
—
—
—
—
4000
600
600
250
4700
600
600
250
0
ns
3
T
LOW
Clock low time
ns
4
T
R
SDA and SCL rise time
(Note 1)
ns
5
T
F
SDA and SCL fall time
(Note 1)
Start condition hold time
ns
6
T
HD
:
ST
A
ns
7
T
SU
:
ST
A
Start condition setup time
ns
8
T
HD
:
DA
T
T
SU
:
DA
T
Data input hold time
ns
9
Data input setup time
250
100
100
4000
600
600
250
4000
600
600
—
—
—
—
—
—
—
—
—
—
ns
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
≤
5.5V 24FC128
1.8 V
≤
V
CC
<
2.5V
2.5 V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
<
2.5V 24FC128
2.5 V
≤
V
CC
≤
5.5V 24FC128
1.8V
≤
V
CC
<
2.5V
2.5V
≤
V
CC
≤
5.5V
1.8V
≤
V
CC
≤
5.5V 24FC128
10
T
SU
:
ST
O
Stop condition setup time
ns
11
T
SU
:
WP
WP setup time
ns
Note 1:
Not 100% tested. C
B
= total capacitance of one bus line in pF.
2:
As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
3:
The combined T
SP
and V
HYS
specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a T
I
specification for standard operation.
4:
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:
www.microchip.com.