Datasheet

 2005-2013 Microchip Technology Inc. DS20001941L-page 3
24AA1025/24LC1025/24FC1025
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I): V
CC = +1.7V to 5.5V TA = -40°C to +85°C
Automotive (E): Vcc = +2.5V to 5.5V T
A = -40°C to +125°C
Param.
No.
Sym. Characteristic Min. Max. Units Conditions
1F
CLK Clock frequency —
—
—
—
—
100
100
400
400
1000
kHz 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
2T
HIGH Clock high time 4000
4000
600
600
500
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
3T
LOW Clock low time 4700
4700
1300
1300
500
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
4T
R SDA and SCL rise time
(Note 1)
—
—
—
—
—
1000
1000
300
300
300
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
5T
F SDA and SCL fall time
(Note 1)
—
—
300
100
ns All except 24FC1025
1.8V  V
CC  5.5V (24FC1025 only)
6T
HD:STA Start condition hold time 4000
4000
600
600
250
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
7T
SU:STA Start condition setup time 4700
4700
600
600
250
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
8T
HD:DAT Data input hold time 0 — ns (Note 2)
9T
SU:DAT Data input setup time 250
250
100
100
100
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
10 T
SU:STO Stop condition setup time 4000
4000
600
600
250
—
—
—
—
—
ns 1.7V  VCC  2.5V
2.5V  V
CC  4.5V, E-temp
2.5V  V
CC  5.5V
1.8V  V
CC  2.5V (24FC1025 only)
2.5V  V
CC  5.5V (24FC1025 only)
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 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 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.