What are disadvantages of I2C?
What are the disadvantages?
- Conflicts – Due to chip addressing, there’s always a possibility of an address conflict.
- Slower speeds – I2C protocol uses pull-up resistors rather than the push-pull ones used by its peers.
- Requires more space – Now, as an embedded system engineer, you know how valuable PCB real estate is.
What is I2C interface?
I2C stands for Inter-Integrated Circuit. It is a bus interface connection protocol incorporated into devices for serial communication. It was originally designed by Philips Semiconductor in 1982. Recently, it is a widely used protocol for short-distance communication.
Why do we prefer I2C interface over serial interface?
Advantages of using I2C Simple as it only uses 2 bidirectional wires to establish communication among multiple devices. Adaptable as it can adapt to the needs of various slave devices. Support multiple masters.
What are the pros and cons of I2C versus SPI interface?
Difference between I2C and SPI ( I2C vs SPI ), you should know.
| I2C | SPI |
|---|---|
| I2C draws more power than SPI. | Draws less power as compared to I2C. |
| I2C is less susceptible to noise than SPI. | SPI is more susceptible to noise than I2C. |
| I2C is cheaper to implement than the SPI communication protocol. | Costly as compared to I2C. |
Why do we use I2C protocol?
The I2C protocol used to connect a maximum of 128 devices that are all connected to communicate with the SCL and SDL lines of the master unit as well as the slave devices. It supports Multimaster communication, which means two masters are used to communicate the external devices.
Which one is better SPI or I2C?
Overall, SPI is better for high speed and low power applications, while I2C is better suited for communication with a large number of peripherals, as well as in situations involving dynamic changing of the primary device role among peripherals on the I2C bus.
What are 4 differences between I2C and SPI busses?
I2C is a two wire protocol and SPI is a four wire protocol. I2C supports clock stretching and SPI does not have clock stretching. I2C is slower than SPI. I2C has extra overhead start and stop bits and SPI does not have any start and stop bits.
How slow is I2C?
I2C defines several speed grades but the term baud rate is quite unusual in this context. The speed grades (standard mode: 100 kbit/s, full speed: 400 kbit/s, fast mode: 1 mbit/s, high speed: 3,2 Mbit/s) are maximum ratings.
What are the differences between SPI and I2C?
I2C is half-duplex communication and SPI is full-duplex communication. I2C supports multi-master and multi slave and SPI supports single master. I2C is a two-wire protocol and SPI is a four-wire protocol. I2C has an extra overhead start and stop bits and SPI does not have any start and stop bits.