In the field of embedded development, engineers are always pursuing a balance among performance, size, and reliability. FET3506J-C SoM, newly launched by Forlinx Embedded based on Rockchip RK3506J processor, has become the preferred solution for developers in fields such as industrial automation, new energy, consumer electronics, and smart medical care, thanks to its ultra-small size of 29mm×40mm, the design of board-to-board connectors for quick disassembly and assembly, and industrial-grade features.

Ultra-small Size of 29mm×40mm, An Ideal Choice for Compact Scenarios

The FET3506J-C SoM uses a compact design, with a size of only 29mm×40mm, which is significantly smaller than conventional SoMs. This breakthrough design comes from Forlinx Embedded's efficient use of the processor pins. Through the matrix IO design, 98 functional signals can be flexibly mapped on 32 physical pins. Any functional signal, such as UART, CAN-FD, JTAG, FSPI, etc., can be assigned to any pin through software configuration.

In space-constrained scenarios such as industrial handheld terminals and portable medical devices, the ultra-small SoM can be directly embedded in the device motherboard without the need for additional expansion board design. It can significantly improve the portability and market competitiveness of the products.

2mm Mating Height Board-to-board Connectors

a reliable guarantee behind the 2-second quick disassembly and assembly

The FET3506J-C SoM is physically connected to the carrier board through two 80-PIN board-to-board connectors with a mating height of only 2mm and a pin pitch of 0.5mm. This design brings two major core advantages: First, the board-to-board connectors allow for quick replacement of the SoM, greatly reducing the equipment maintenance cost; Second, the connectors have an anti-reverse-insertion design built-in to avoid hardware damage caused by misoperation. This design shows its unique value in scenarios that require regular maintenance, such as new energy vehicle charging piles and industrial control cabinets.

2 x CAN-FD

with ultra-stable communication performance

CAN-FD has become an indispensable bus interface in fields such as industrial automation, energy management, and smart transportation due to its higher data transmission rate and bandwidth utilization. The FET3506J-C SoM supports 2 x CAN-FD. According to actual tests, when the bus occupancy rate is 90%, whether it is single-channel or two-channel CAN-FD receiving/transmitting simultaneously, no frame loss will occur. Moreover, when the single-channel and two-channel are transmitting and receiving simultaneously at a 1:1 ratio and the bus occupancy rate is 87%, there is no frame loss or error frame. It is not difficult to see from the following test data that the CAN-FD interface of the FET3506J-C SoM has excellent communication performance.

No.	Test Item	Number	Baud Rate	Frame	Capacity	Note:	Conclusion
1	Single-channel receiving only	1	Frame rate: 1M	Extended ID frame	2800 frames per second	Bus occupancy 90%	Passed
			Data rate: 2M
2	Multi-channel receiving only	2	Frame rate: 1M	Extended ID frame	2800 frames per second	Bus occupancy 90%	Passed
			Data rate: 2M
3	Single-channel sending only	1	Frame rate: 1M	Extended ID frame	2800 frames per second	Bus occupancy 90%	Passed
			Data rate: 2M
4	Multi-channel sending only	2	Frame rate: 1M	Extended ID frame	2800 frames per second	Bus occupancy 90%	Passed
			Data rate: 2M
5	Single-channel sending only	1	Frame rate: 1M	Extended ID frame	2700 frames per second	Bus occupancy 87%	Passed
			Data rate: 2M
6	Multi-channel sending only	2	Frame rate: 1M	Extended ID frame	2700 frames per second	Bus occupancy 87%	Passed
			Data rate: 2M

Industrial-grade Features

The FET3506J-C SoM has undergone comprehensive and thorough reliability tests. The measured data shows that its power consumption is only 0.7W under full-load operation. Even without any heat dissipation measures, it can successfully pass the high-temperature environment test at +85°C during full-load operation, effectively ensuring stable and reliable operation in complex industrial environments.

Summary

The launch of the FET3506J-C SoM reflects Forlinx Embedded's deep understanding of customers' needs for compact size, high integration, and easy maintenance. With an ultra-small dimension of 29mm x 40mm, board-to-board connectors for quick assembly and disassembly, and industrial-grade features, this SoM product offers significant competitive advantages. For developers who pursue efficient development and long-term supply guarantee, it is a reliable choice to help you achieve technological innovation and industrial upgrading.

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