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M24C04-R 数据表(PDF) 27 Page - STMicroelectronics

部件名 M24C04-R
功能描述  4-Kbit serial IC bus EEPROM
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24C04-R 数据表(HTML) 27 Page - STMicroelectronics

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M24C04-W M24C04-R M24C04-F
DC and AC parameters
33
Figure 10. Maximum Rbus value versus bus parasitic capacitance (Cbus) for
an I2C bus at maximum frequency fC = 400 kHz
Figure 11. AC waveforms
ai14796b
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 × Cbus = 120 ns
4 k
30 pF
The R
x C
time constant
must be below the 400 ns
time constant line represented
on the left.
bus
bus
SCL
SDA Out
SCL
SDA In
Data valid
tCLQV
tCLQX
tCHDH
Stop
condition
tCHDL
Start
condition
Write cycle
tW
AI00795i
Data valid
tQL1QL2
SDA In
tCHDL
Start
condition
tDXCH
tCLDX
SDA
Input
SDA
Change
tCHDH
tDHDL
Stop
condition
Start
condition
tXH1XH2
SCL
tCHCL
tDLCL
tCLCH
tXH1XH2
tXL1XL2
tXL1XL2
WC
tWLDL
tDHWH
tCHCL



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