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Author Topic: Info / datasheet on CDP1834D ROM  (Read 4265 times)
Deepblue
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« on: February 07, 2010, 08:15:43 AM »
Hi, I'm currently working on an old Playmatic Third World pinball, and need to read out the ROMs.

Does anybody have ANY info on this old RCA part???

I need some info on pinout and supply voltage ( will it read out on 5V)

A datasheet would be VERY nice
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channelmaniac
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« Reply #1 on: February 08, 2010, 03:57:10 PM »
Many of those old 1800 series parts will run from a wide range of power supply voltages, from 4 to 10 volts. +5 should be fine.

There are pinouts available for the 1833 on the web, but I can't find squat on the 1834. Hopefully they are close enough, but if they aren't, it should be easy to find the power, ground, data, and address lines. The harder part will be figuring out the various control lines and a possible clock line. (The 1833 has a clock pin)

Raymond
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Deepblue
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« Reply #2 on: February 09, 2010, 03:53:42 AM »
Thanks Raymond.

I've tried googling for all the 183x parts, but only found the 1831.... Scratch Head

Could you post a link?
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channelmaniac
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« Reply #3 on: February 09, 2010, 09:05:09 PM »
http://www.datasheet4u.com/html/C/D/P/CDP1833_Intersil.pdf.html

BAH!

Never mind... that page is 1833, but the info is 1883.

I have someone that is looking to see if they have the databook for that series at home.
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I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
Deepblue
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« Reply #4 on: February 10, 2010, 03:43:56 AM »
Thanks, sounds great
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