SMBus
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What is SMBus?
SMBus (System Management Bus) is a single-ended, two-wire serial communication bus, typically used in computer systems for low-speed system management tasks. It is most commonly used for communication with batteries, power supplies, and embedded devices. SMBus is derived from I²C, but with stricter voltage and timing specifications.
What other technologies are related to SMBus?
SMBus Competitor Technologies
I3C
I3C is a more advanced interface intended to replace I2C and SMBus. It offers higher speeds and more features, thus making it a direct competitor.
MCTP
MCTP (Management Component Transport Protocol) can use SMBus as a transport, but it is designed to be transport-agnostic and can run over other buses like PCIe or Ethernet. It provides a framework for managing components and can potentially replace some use cases of SMBus, and is hence best classified as a competitor.
SPI
SPI (Serial Peripheral Interface) is another serial communication protocol that can be used for similar applications as SMBus, especially where higher speed is required. Although the application areas overlap, the protocols are very different. For some use cases, SPI provides a direct competitor to SMBus.
UART
UART (Universal Asynchronous Receiver/Transmitter) is another serial communication protocol. UART, like SPI, serves as a lower-speed alternative to SMBus in many applications.
CAN
CAN (Controller Area Network) is a robust communication protocol often used in automotive and industrial applications. In some of these applications, CAN could be an alternative to SMBus, though they serve different niches.
SMBus Complementary Technologies
PMBus
PMBus is a superset of SMBus, adding voltage-based controls. It builds upon and is compatible with SMBus. It is therefore strongly complementary.
I2C
SMBus is based on I2C, sharing the same underlying physical layer and protocol concepts. SMBus is a subset of I2C with stricter timing and voltage requirements. I2C is therefore considered complementary.
IPMI
IPMI (Intelligent Platform Management Interface) often utilizes SMBus as a communication channel for system management functions, allowing it to monitor temperatures, voltages, and other system parameters. This makes IPMI a strong complement to SMBus.
Which job functions commonly mention SMBus?
Firmware Engineer
0.4% of all Firmware Engineer jobs mention SMBus
View 112
jobs on Sumble
Embedded Engineer
0.2% of all Embedded Engineer jobs mention SMBus
View 133
jobs on Sumble
Hardware Engineer
0.1% of all Hardware Engineer jobs mention SMBus
View 104
jobs on Sumble
Electrical Engineer
0.1% of all Electrical Engineer jobs mention SMBus
View 197
jobs on Sumble
Engineer
784 Engineer jobs mention SMBus
View 784
jobs on Sumble
Which organizations are mentioning SMBus?
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