24AA014-I/MNY データシートの表示（PDF） - Microchip Technology
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24AA014-I/MNY Datasheet PDF : 28 Pages
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24AA014/24LC014
TABLE 1-2: AC CHARACTERISTICS
All parameters apply across the specified
operating ranges unless otherwise noted.
Vcc = 1.8V to 5.5V
Industrial (I): TA = -40°C to +85°C
Parameter
Vcc = 1.8V - 5.5V Vcc = 2.5V - 5.5V
Symbol STD MODE
FAST MODE Units
Remarks
Min. Max. Min. Max.
Clock frequency
FCLK
—
100
—
400 kHz
Clock high time
THIGH
4000
—
600
—
ns
Clock low time
TLOW
4700
—
1300
—
ns
SDA and SCL rise time
TR
—
1000
—
300 ns (Note 1)
SDA and SCL fall time
TF
—
300
—
300 ns (Note 1)
Start condition hold time
THD:STA 4000
—
600
—
ns After this period, the first
clock pulse is generated
Start condition setup time TSU:STA 4700
—
600
—
ns Only relevant for repeated
Start condition
Data input hold time
THD:DAT
0
—
0
—
ns (Note 2)
Data input setup time
TSU:DAT 250
—
100
—
ns
Stop condition setup time TSU:STO 4000
—
600
—
ns
Output valid from clock
TAA
—
3500
—
900 ns (Note 2)
Bus free time
TBUF
4700
—
1300
—
ns Time the bus must be free
before a new transmission
can start
Output fall time from VIH
TOF
minimum to VIL maximum
—
250 20 +0.1 250 ns (Note 1), CB ≤ 100 pF
CB
Input filter spike suppression TSP
(SDA and SCL pins)
—
50
—
50
ns (Note 3)
Write cycle time
TWC
—
5
—
5
ms Byte or Page mode
Endurance
1M
—
1M
— cycles 25°C, (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 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 downloaded from Microchip’s web
site at www.microchip.com.
FIGURE 1-1:
BUS TIMING DATA
SCL
SDA
IN
SDA
OUT
TF
TSU:STA
TLOW
THD:STA
TSP
THIGH
THD:DAT
TAA
TR
TSU:DAT
TSU:STO
TBUF
© 2008 Microchip Technology Inc.
DS21809E-page 3
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