The 16C95x series (including the popular 16C950, 16C952, and 16C954 chips) represents a high-performance evolution of the classic 16550 UART. Manufactured primarily by companies like Oxford Semiconductor (now part of Broadcom), these chips are designed to handle much higher data rates and offer larger FIFO (First-In, First-Out) buffers—often up to 128 bytes.
This article covers everything from what these drivers do to how to install and troubleshoot them effectively. What is the 16C95x UART?
Many 16C95x chips support automatic direction control for RS-485 communication, which the driver must toggle. 16c95x serial port driver
If Windows cannot find it, you typically need the drivers provided by the card manufacturer (e.g., StarTech, Perle, or Moxa). These often come as an .inf file. You can point the "Browse my computer for drivers" tool to the folder containing this file. 2. Linux Systems
The driver manages the 128-byte buffer to prevent data loss (buffer overruns) during high-speed transfers. The 16C95x series (including the popular 16C950, 16C952,
The 16C95x serial port driver is a robust piece of software designed for high-reliability communication. While modern USB-to-Serial adapters are common, they rarely match the latency and throughput performance of a native 16C95x-based PCI Express card. Keeping your drivers updated ensures that your industrial or legacy hardware continues to run at peak efficiency.
This is the most common driver error. It usually indicates that the driver is installed but the device cannot start. This often happens due to an IRQ (Interrupt Request) conflict or because the driver version is incompatible with a recent Windows update (like the jump from Windows 10 to 11). What is the 16C95x UART
If you are losing data, the driver’s FIFO settings might be too aggressive. You can often adjust this in Device Manager > Ports (COM & LPT) > [Your Port] > Properties > Advanced . Try lowering the "Receive" and "Transmit" buffers slightly to see if stability improves.
Essential for certain multi-drop industrial protocols.
Support for speeds up to 15 Mbps (depending on the hardware clock).