24AA128/24LC128/24FC128
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I): V CC = +1.7V to 5.5V T A = -40°C to +85°C
Automotive (E): V CC = +2.5V to 5.5V T A = -40°C to 125°C
Param.
No.
13
Sym.
T AA
Characteristic
Output valid from clock
Min.
Max.
3500
Units
ns
Conditions
1.7V ? V CC ? 2.5V
(Note 2)
900
900
400
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC128
2.5V ? V CC ? 5.5V 24FC128
14
T BUF
Bus free time: Time the bus
4700
ns
1.7V ? V CC ? 2.5V
must be free before a new
transmission can start
1300
1300
500
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC128
2.5V ? V CC ? 5.5V 24FC128
15
T OF
Output fall time from V IH
10 + 0.1C B
250
ns
All except, 24FC128 (Note 1)
minimum to V IL maximum
C B ? 100 pF
250
24FC128 (Note 1)
16
T SP
Input filter spike suppression
50
ns
All except, 24FC128 (Notes 1
(SDA and SCL pins)
and 3)
17
T WC
Write cycle time (byte or
5
ms
page)
18
Endurance
1,000,000
cycles Page Mode, 25°C, 5.5V (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 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
at www.microchip.com.
FIGURE 1-1:
BUS TIMING DATA
5
2
D3
4
SCL
SDA
IN
7
6
3
8
9
10
16
SDA
OUT
13
14
WP
DS21191S-page 4
(protected)
(unprotected)
11
12
? 2010 Microchip Technology Inc.
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