Physical layer specification (up to 15m) advancing autonomous driving and other automotive applications

Quick Facts

Key Highlights

Targeted for autonomous driving systems (ADS), advanced driver assistance systems (ADAS) and other surround sensor applications

Enabling lidar, radar and camera integration for autonomous driving

Functional safety support

Also well-suited for Internet of Things (IoT), industrial and other applications

Fundamental Features

12-24 gigabits per second (Gbps)

Asymmetric data link layer

Wiring, cost and weight optimization

High-speed data, control data and optional power share the same physical wiring

Point-to-point topology

Reuses generations of mobile protocols

Low electromagnetic interference (EMI)

Use Cases



Human machine interfaces (HMI)

In-vehicle infotainment (IVI)

In-vehicle data recorders (black boxes)


Icon of an AutomobileIcon of a cloud with the letters IoT inside.


MIPI Alliance has initiated development of a physical layer (up to 15m) specification targeted for ADS, ADAS and other surround sensor applications. 

MIPI A-PHY v1.0 is expected to be available to developers in late 2019. The specification will optimize wiring, cost and weight requirements, as high-speed data, control data and optional power share the same physical wiring. The asymmetric nature of the MIPI A-PHY link, its point-to-point topology and its reuse of generations of mobile protocols promise overall lower complexity, power consumption and system costs for developers and automotive OEMs. It’s anticipated that the first vehicles using A-PHY components will be in production in 2024.

In addition to automotive uses, the configuration of the specification will be well suited for applications such as IoT and industrial.

The MIPI Automotive Working Group (AWG), which developed the requirements for MIPI A-PHY v1.0, has begun requirements gathering to support higher speeds (e.g., over 48 Gbps) for display and other use cases.

MIPI A-PHY is being developed by the MIPI PHY Working Group. The specification will be available to MIPI Alliance members only. For information about becoming a member, see Join MIPI.