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M24512-DF 데이터시트(PDF) 27 Page - STMicroelectronics

부품명 M24512-DF
상세설명  512-Kbit serial I²C bus EEPROM
PDF  47 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M24512-DF 데이터시트(HTML) 27 Page - STMicroelectronics

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Figure 12. Maximum Rbus value versus bus parasitic capacitance (Cbus) for an I2C bus at maximum
frequency fC = 400 kHz
1
10
100
10
100
1000
Bus line capacitor (pF)
I²C bus
master
M24xxx
Rbus
VCC
Cbus
SCL
SDA
R
bu
s ×
C
bu
s = 400
ns
Here Rbus x Cbus = 120 ns
4 k
30
The Rbus x Cbus time constant
must be below the 400 ns
time constant line represented
on the left.
Figure 13. Maximum Rbus value versus bus parasitic capacitance (Cbus) for an I2C bus at maximum
frequency fC = 1MHz
1
10
0
I²C bus
master
M24xxx
SCL
SDA
Here,
R
bus x C
bus = 150
ns
4
30
10
Rbus x Cbus = 120 ns
Bus line capacitor (pF)
10
100
The Rbus x Cbus time constant
Must be below the 150 ns
Time constant line
represented on the left
VCC
Rbus
Cbus
M24512-W M24512-R M24512-DF
DC and AC parameters
DS6520 - Rev 31
page 27/47



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