M24128BFCS3G View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M24128BFCS3G

128 Kbit, 64 Kbit and 32 Kbit serial I²C bus EEPROM

STMicroelectronics 

Signal description

M24128, M24C64, M24C32

Figure 5. Maximum RP value versus bus parasitic capacitance (C) for an I2C bus

100

10

1

10

100

Bus line capacitor (pF)

Figure 6. I2C bus protocol

fC = 400 kHz, tLOW = 1.3 µs

Rbus x Cbus time

constant must be less than

500 ns

VCC

Rbus

1000

I²C bus

master

SCL

SDA

M24xxx

Cbus

ai14796

SCL

SDA

Start

Condition

SDA

Input

SDA

Change

Stop

Condition

SCL

SDA

1

2

3

MSB

Start

Condition

SCL

SDA

1

2

3

MSB

7

8

9

ACK

7

8

9

ACK

Stop

Condition

AI00792B

10/39

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