KDPOF: new automotive Gigabit Ethernet switch with optical ports

Posted 26 September 2022

KDPOF introduces the first automotive Ethernet switch EVB9351-AUT-SW-NXP with five 1000BASE-RH optical ports, each comprised of KDPOF’s KD9351 FOT and KD1053 PHY IC.

The EVB9351-AUT-SW-NXP automotive Ethernet switch board has two SJA1110 switches from NXP on board. This part integrates an ARM Cortex-M7 @200MHz processor for autonomous and secure operation: 512 kB integrated SRAM as Instruction Tightly Coupled Memory (ITCM) and 256 kB integrated SRAM as Data Tightly Coupled Memory (DTCM). It further contains a double-precision floating-point unit and a memory protection unit. Boot time is less than 100 ms with a 512 kB firmware with authentication. The switch has selectable I/O voltages (1.8V, 2.5V and 3.3V) to aid in design flexibility. It provides a small footprint of 14 mm by 14 mm (LFBGA256) and a package with 0.8 mm pitch.

It is automotive AEC-Q100 qualified, compliant with ISO 26262, and ASIL-B. 2.5 Gb/s operation is supported for two SGMII ports. The board has five optical 1000/100BASE-RH ports, 12 100BASE-T1 ports, and one NXP SABRE expansion connector.



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