24AA128/24LC128/24FC128
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I):
VCC = +1.7V to 5.5V TA = -40°C to +85°C
Automotive (E): VCC = +2.5V to 5.5V TA = -40°C to 125°C
Param.
Sym.
No.
Characteristic
Clock frequency
Min.
Max.
Units
Conditions
1
2
3
4
FCLK
—
—
—
—
100
400
400
kHz 1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5V VCC 5.5V 24FC128
1000
THIGH
TLOW
Clock high time
Clock low time
4000
600
600
500
—
—
—
—
ns
ns
ns
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5V VCC 5.5V 24FC128
4700
1300
1300
500
—
—
—
—
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5V VCC 5.5V 24FC128
TR
TF
SDA and SCL rise time
(Note 1)
—
—
—
1000
300
300
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 5.5V 24FC128
5
6
SDA and SCL fall time
(Note 1)
—
—
300
100
ns
ns
All except, 24FC128
1.7V VCC 5.5V 24FC128
THD:STA Start condition hold time
4000
600
600
250
—
—
—
—
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5V VCC 5.5V 24FC128
7
TSU:STA Start condition setup time
4700
600
600
250
—
—
—
—
ns
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5V VCC 5.5V 24FC128
8
9
THD:DAT Data input hold time
TSU:DAT Data input setup time
0
—
ns
ns
(Note 2)
250
100
100
—
—
—
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 5.5V 24FC128
10
TSU:STO Stop condition setup time
4000
600
600
250
—
—
—
—
ns
1.7 V VCC 2.5V
2.5 V VCC 5.5V
1.7V VCC 2.5V 24FC128
2.5 V VCC 5.5V 24FC128
11
12
TSU:WP WP setup time
THD:WP WP hold time
4000
600
600
—
—
—
ns
ns
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 5.5V 24FC128
4700
1300
1300
—
—
—
1.7V VCC 2.5V
2.5V VCC 5.5V
1.7V VCC 5.5V 24FC128
Note 1: Not 100% tested. CB = 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 TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI 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
at www.microchip.com.
2010 Microchip Technology Inc.
DS21191S-page 3
MICROCHIP [ MICROCHIP ]
