GitHub - Jaystonian/8701DUO: MOS8701 replacement module with a jumper to select NTSC or PAL having a dual-clock.

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MOS8701 replacement module with a jumper to select NTSC or PAL having a dual-clock.

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Name		Name	Last commit message	Last commit date
Latest commit History 10 Commits
gerber		gerber
img		img
libs		libs
8701Duo-cache.lib		8701Duo-cache.lib
8701Duo.kicad_pcb		8701Duo.kicad_pcb
8701Duo.net		8701Duo.net
8701Duo.pdf		8701Duo.pdf
8701Duo.pro		8701Duo.pro
8701Duo.sch		8701Duo.sch
LICENSE		LICENSE
fp-info-cache		fp-info-cache
readme.txt		readme.txt

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Tested early August 2020.  Works great.  Needed to reverse the clock chips, corrected all files.  
NTSC standard clock should be next to the 3-SIP pin header.

PARTS
=====================
IDT 525-01RILFT (or 525-02R etc)
SN74LVC1G06DBVR (or 1g04, or 1g14, hct, ahct etc)
LFSPXO020648 (17.734MHz)
LFSPXO021772 (14.318MHz)          
2x 10nF 0805/2012 (for ics525)
2x 100nF 0805/2012 (for clocks & gate)
1x 20pF 0805/2012 
1x 8k2 0805/2012 (as pullup resistor)