M24512-R datasheet(27/47 Pages) STMICROELECTRONICS

Part #	M24512-R

Description	512-Kbit serial I²C bus EEPROM

PDF	47 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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27 / 47 page

Figure 12. Maximum Rbus value versus bus parasitic capacitance (Cbus) for an I2C bus at maximum

frequency fC = 400 kHz

100

1000

Bus line capacitor (pF)

I²C bus

master

M24xxx

Rbus

VCC

Cbus

SCL

SDA

s ×

s = 400

Here Rbus x Cbus = 120 ns

4 k

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

I²C bus

master

M24xxx

SCL

SDA

Here,

bus x C

bus = 150

Rbus x Cbus = 120 ns

Bus line capacitor (pF)

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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