PS/2 to USB converter for BOTH keyboard and Mouse

We are looking to design a PS/2 to USB converter for both a Keyboard and Mouse interface. We have experience with the USB via FTDI chips but no experience with the PS/2 interface. We are looking for a single chip solution that will be able to handle both the mouse and keyboard interface. What are the options available ? We really need a chip that will handle the USB side of things seamlessly - else wise we will need to to a FTDI solution and possibly an additional chip.

The mouse and keyboard are PS/2 and the USB output is into a PC with OS Windows or Linux.

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dougw over 4 years ago

There are many adapters out there that cost just a few $.
If you need to roll your own, you could check what chips they use......
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Former Member over 4 years ago in reply to dougw

Douglus,

We have looked into these but we need an adapter that can work at extended temperatures e.g. -40 deg C to +85 Deg C - which we were not able to find.....
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dougw over 4 years ago in reply to Former Member

Thermal performance of electronics is a big subject and there also is a lot of misinformation to be wary of.
It may be feasible to "up-rate" a part if you test it adequately for your application. Many companies do this successfully.
Intel and AMD might not make military versions of their chips and yet their chips often end up in military systems (after rigorous testing)
It may also be feasible to "up-rate" a part by adding a conformal coating, but such measures take more in depth knowledge and testing to ensure adequate performance.
https://www.electronics-cooling.com/2004/02/the-temperature-ratings-of-electronic-parts/
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gdstew over 4 years ago in reply to dougw

Or you could just buy parts with the standard industrial temperature range that Shmuel is looking for. A lot of parts come that way, no extra charge.
The ones that cost more usually don't cost a lot more and are already tested so you don't need to spend money for upgrade testing or coating them.
The only thing that needs to be done is to make sure the design really needs the extended temperature range.
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gdstew over 4 years ago in reply to dougw

Or you could just buy parts with the standard industrial temperature range that Shmuel is looking for. A lot of parts come that way, no extra charge.
The ones that cost more usually don't cost a lot more and are already tested so you don't need to spend money for upgrade testing or coating them.
The only thing that needs to be done is to make sure the design really needs the extended temperature range.
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