MCS 312 - RCB board needs Z21 eprom

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#32846 - 04/04/22 05:02 PM MCS 312 - RCB board needs Z21 eprom
Joined: Mar 2018 Posts: 2 Excel stranger
Excel stranger Joined: Mar 2018 Posts: 2	I'm in need of Z21 eprom for an RCB board on an OTIS MCS 312 controller. Any leads as to where I could buy some? Even working second hand Z21 will do given they are hard to come by. HELP! Attached Files EPROM Z21 highlighted.jpg (14 downloads)

#32847 - 04/04/22 06:00 PM Re: MCS 312 - RCB board needs Z21 eprom [Re: Excel]
Joined: Nov 2009 Posts: 413 Johnny Journeyman
Johnny Journeyman Joined: Nov 2009 Posts: 413 Portland. Oregon	I have some eproms and eeproms from years ago. Do you have the ability to read and write the programs into the chip? Do you have any other information on the chip? The manuf, size, old part number?

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