Datasheet

24AA02E48/24AA025E48
DS22124D-page 4  2010 Microchip Technology Inc.
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I): T
A = -40°C to +85°C, VCC = +1.7V to +5.5V
Param.
No.
Sym. Characteristic Min. Typ. Max. Units Conditions
1F
CLK Clock frequency —
—
—
—
400
100
kHz 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
2 THIGH Clock high time 600
4000
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
3TLOW Clock low time 1300
4700
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
4T
R SDA and SCL rise time
(Note 1)
—
—
—
—
300
1000
ns 2.5V  VCC  5.5V (Note 1)
1.7V  V
CC  2.5V (Note 1)
5TF SDA and SCL fall time — —
—
300 ns (Note 1)
6T
HD:STA Start condition hold time 600
4000
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
7T
SU:STA Start condition setup
time
600
4700
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
8THD:DAT Data input hold time 0 —
—
—ns(Note 2)
9T
SU:DAT Data input setup time 100
250
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
10 T
SU:STO Stop condition setup
time
600
4000
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
11 TAA Output valid from clock
(Note 2)
—
—
—
—
900
3500
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
12 TBUF Bus free time: Time the
bus must be free before
a new transmission can
start
1300
4700
—
—
—
—
ns 2.5V  VCC  5.5V
1.7V  V
CC  2.5V
13 TOF Output fall time from VIH
minimum to V
IL
maximum
—
—
—
—
250
250
ns 2.5V  V
CC  5.5V
1.7V  V
CC  2.5V
14 T
SP Input filter spike
suppression
(SDA and SCL pins)
— — 50 ns (Notes 1 and 3)
15 TWC Write cycle time (byte or
page)
——5ms—
16 — Endurance 1M — — cycles 25°C (Note 4)
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 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.