Part Number:PCA9306
Hi Sir,
I have some PCA9306 vs TXS0102 design for I2C level shifter questions need to clarify with you,
Please help on below questions, thanks
- I2C I/O data rate will be 400KHz only but design mostly define max will not faster than 2MHz.
And the I2C bus will have to support 14 devices and long traces with expected capacitive loads up to 200pF.
Base on these requirements, PCA9306 is the more suitable solution than TXS0102, correct?
- If my customer will design with PCA9306, please help to clarify below questions.
1.Output rise time is determine by pull up resistor, correct?
2.Recommand External pull up resistor of 1.8V & 3.3V to allow the data rate as 400KHz with output capacitance up to 240pF,
Is it suitable to use below resistor value?
Pull up resistor of 1.8V = 2.7K ohm
Pull up resistor of 3.3V = 1.5K ohm
