24LC128 Datasheet, PDF (4/38 Pages) Microchip Technology – 128K I2C™ CMOS Serial EEPROM

24AA128/24LC128/24FC128
TABLE 1-2: AC CHARACTERISTICS (CONTINUED)
AC CHARACTERISTICS
Electrical 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.
No.
Sym.
Characteristic
Min.
Max. Units
Conditions
13
TAA
Output valid from clock
(Note 2)
—
3500
ns 1.7V  VCC  2.5V
—
900
2.5V  VCC  5.5V
—
900
1.7V  VCC  2.5V 24FC128
—
400
2.5V  VCC  5.5V 24FC128
14
TBUF Bus free time: Time the bus 4700
—
ns 1.7V  VCC  2.5V
must be free before a new
1300
—
2.5V  VCC  5.5V
transmission can start
1300
—
1.7V  VCC  2.5V 24FC128
500
—
2.5V  VCC  5.5V 24FC128
15
TOF
Output fall time from VIH
10 + 0.1CB 250
minimum to VIL maximum
250
CB  100 pF
ns All except, 24FC128 (Note 1)
24FC128 (Note 1)
16
TSP
Input filter spike suppression
—
(SDA and SCL pins)
50
ns All except, 24FC128 (Notes 1
and 3)
17
TWC
Write cycle time (byte or
—
page)
5
ms —
18
—
Endurance
1,000,000
—
cycles Page Mode, 25°C, 5.5V (Note 4)
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.
FIGURE 1-1:
BUS TIMING DATA
SCL
SDA
IN
SDA
OUT
WP
5
7
3
6
16
2
8
D3
9
13
4
10
14
(protected)
(unprotected)
11
12
DS21191S-page 4
 2010 Microchip Technology Inc.