Interface driver, receiver, and transceiver ICs bridge the gap between logic-level MCU/FPGA signals and real-world communication buses — including RS-485, RS-232, RS-422, CAN, LIN, LVDS, PROFIBUS, and Ethernet physical layers. Our selection includes line drivers and transceivers from Texas Instruments (SN75/SN65/MAX3 series), Maxim/Analog Devices (MAX485/MAX232 families), Microchip, NXP (TJA series CAN), and ON Semiconductor — supporting data rates from 20kbps to 3.125 Gbps and supply voltages from 1.8V to 5.5V. Industrial and automotive communication ICs — particularly CAN FD, LIN bus, and isolated RS-485 transceivers — have experienced persistent allocation tightening. Welllinkchips stocks a wide range of standard and hard-to-find interface ICs, including older MAX232/MAX485 variants still used in millions of legacy systems worldwide.