Datasheet

Signal description M24C32-W M24C32-R M24C32-F
10/38 Doc ID 4578 Rev 17
Figure 4. Maximum R
P
value versus bus parasitic capacitance (C) for an I
2
C bus
Figure 5. I
2
C bus protocol
1
10
100
10 100 1000
Bus line capacitor (pF)
Bus line pull-up resistor
(k
)
When t
LOW
= 1.3 µs (min value for
f
C
= 400 kHz), the R
bus
× C
bus
time constant must be below the
400 ns time constant line
represented on the left.
I²C bus
master
M24xxx
R
bus
V
CC
C
bus
SCL
SDA
ai14796b
R
bus
× C
bus
= 400 ns
Here R
bus
× C
bus
= 120 ns
4 kΩ
30 pF
SCL
SDA
SCL
SDA
SDA
Start
Condition
SDA
Input
SDA
Change
AI00792B
Stop
Condition
1 23 7 89
MSB
ACK
Start
Condition
SCL
1 23 7 89
MSB ACK
Stop
Condition