FPGA to 6502

[jbaum81]

Hi guys,

Being somewhat disinterested in an old school solution for video for my 6502 project and after playing with the SPLD's I have an interest in playing with FPGA's. I found the Xosera project based on the ICE40 which, as I understand it, is the same FPGA being used in the Vera on the Commander X16. I think I've settled in on this chip for my first foray.

The ICE 40's are a 3.3v logic level so it appears I need to do some work with level converting, not a huge deal but I'm looking for an 8 bit cmos level shifting transceiver for the data lines.

I found the 74ALVC164245, which seems to check all the boxes, but is 16 bit, I only need 8 bits and can't seem to locate an 8 bit version. Below are the specs of what I think I need, if anyone can help I'd appreciate


DIP *highly desired, but not necessarily required.
Bi-Directional 5v to 3.3v translation
CMOS to CMOS
8 bit

[MichaelM]

Look at the following: 74LVC4245APW-Q100J

[fachat]

I use the Xilinx xc95...xl series. CPLD only, no FPGA, but 5V tolerant and not needing level converters.
See my MicroPET project for an example https://github.com/fachat/MicroPET

[vmarcus]

Well, I’m a newbie here. Though, this is the same topic I’ve been interest in for over ago after seeing this link - https://suchprogramming.com/fpga-meets-6502/

However, as per the +5v issue, I would suggest the following: https://www.micro-nova.com/products/me2a which is an FPGA +5V tolerant I/O lines, which is also a breadboard-friendly 64-pin DIP package.

[plasmo]

W65C02 works at 3.3V, so no need to convert voltage for 3.3V FPGA.
Bill

[BigEd]

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