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M24256E-FDW6TP датащи(PDF) 30 Page - STMicroelectronics

номер детали M24256E-FDW6TP
подробное описание детали  256-Kbit serial I²C bus EEPROM with configurable device address and preprogrammed device address
PDF  46 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M24256E-FDW6TP датащи(HTML) 30 Page - STMicroelectronics

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Figure 17. Maximum Rbus value versus bus parasitic capacitance (Cbus) for an I2C bus at maximum
frequency fC = 400 kHz
1
30
4
Bus line capacitor (pF)
10
100
1000
10
100
The Rbus x Cbus time
constant must be below
the 400 ns time constant
line represented on the left
R
bus x C
bus =
400
ns
Here Rbus x Cbus= 120 ns
I²C bus
master
M24xxx
Rbus
SCL
Cbus
VCC
SDA
Figure 18. Maximum Rbus value vs. bus parasitic capacitance (Cbus) for an I2C bus at fC = 1MHz
The Rbus x Cbus time
constant must be below
the 150 ns time
constant line
represented on the left
I²C bus
master
M24xxx
Rbus
SCL
Cbus
VCC
SDA
1
10
100
4
30
Bus line capacitor (pF)
10
100
R
bus x C
bus = 150
ns
Here Rbus x Cbus = 120 ns
M24256E-F
DS12687 - Rev 3
page 30/46



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