uCLK486 - Programmable Oscillator

COMING SOON! Hit the red button above to be notified when this product becomes available to buy.

The μCLK486 is a programmable oscillator, designed to replace the common 14-pin DIP PLL oscillators in 486-era motherboards, as well as 4-pin full-size metal can oscillators used in older boards. It can also replace other oscillators such as surface-mount ones if you wire it in manually.

This device is useful mainly for overclocking purposes. Most later 486 boards allow 8 different FSB frequencies: 20, 25, 33, 40, 50, 60, 66, 83 MHz.
But a lot of the time, the best frequency is between those. For example: one of my AM5x86-133 CPUs is stable with 196MHz (4x49MHz) but not 200MHz (4x50MHz).

When installed into a 486 board that uses a set of three jumpers to select the FSB freq, these jumpers will still operate as normal. Except when you set the jumpers to 20MHz - then, the μCLK486 will output its internally saved frequency instead.
When installed as a replacement for a 4-pin oscillator, it will just output and show the saved frequency.

Use the three buttons to change the internally saved frequency from anything up to 99.9MHz in 0.1MHz increments.
The 3-digit display will always show what frequency is currently being output (unless in adjustment mode).

Some examples of the DIP-14 PLL oscillator chips it can replace are MX8315 and CM8815.
One of these chips, as well as a 4-pin full-size metal can oscillator are shown in the product photo (not included of course).

Instructions on how to use the button interface will be linked below before the product is released.