KY301AP Series AUTBUS Physical Layer Transceivers

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Product Description

The KY301AP is a highly integrated AUTBUS MAC-PHY chip. It is suitable for use in a wide range of industrial devices requiring reliable data transmission, such as sensors, instruments, I/O backplanes and humanoid robots. It supports networks of up to 254 nodes.

Product Specifications

A fully featured embedded analogue front-end, supporting all modes of the AUTBUS bus with a maximum communication rate of 100 Mbps. Features built-in analogue switches and low-power cable drivers; no additional driver components are required for short-distance communication. Multiple bandwidth modes of the AUTBUS bus are available. In low-speed mode, it supports stub cables up to 4m and a maximum transmission distance of 2km. Supports a single 3.3V power supply. Digital I/Os are compatible with 1.8V, 2.5V and 3.3V. Equipped with one 10/100 Mbps RGMII/RMII Ethernet port, one QSPI slave interface compatible with SPI mode, and one SPI master/slave interface that supports global synchronous sampling in master mode. One UART interface for chip debugging. Two PWM outputs supporting global synchronous pulse output with a synchronisation accuracy of ±40 ns. Two CAPTURE input channels. Four 32-bit timers and one 64-bit timer supporting global synchronisation. Supports transparent Ethernet transmission for more than 14 nodes.

Company Profile

Industrial Network Bus (AUTBUS) Technical Committee

The Industrial Network Bus (AUTBUS) Technical Committee is a national, industry-specific, non-profit social organisation voluntarily formed by enterprises and institutions involved in technical research and development, chip manufacturing, equipment manufacturing, engineering applications, research institutes and universities. It is affiliated with the China Association of Mechatronics Technology Applications and was formally established in December 2025. It is China’s first national-level social organisation dedicated to domestically developed industrial network buses.
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