CMOS for NMOS

David Griffith dave at 661.org
Sun Apr 15 09:25:57 CDT 2018


I'm pondering upgrading the CPU of a Pacccomm Tiny-2 Mk2 radio packet 
controller from a 6Mhz Z80 processor and SIO to 10Mhz parts.  My problem 
is that the parts already in it appear to be NMOS.  The family is still 
being made by Zilog, but for 10Mhz parts, CMOS is all they have.  Can I 
just drop in CMOS, change out the crystal/oscillator and have things work 
as expected?

Here's what are fitted to my TNC.

Z84C00BB6
Z80BCPU
29125

Z8440BB1
Z80BSIO-O
29014

-- 
David Griffith
dave at 661.org

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