Difference between revisions of "CRE401"

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(Created page with "SIL capacitor/resistor array used for input ports. Also called "CR10-A-*" on late NEO-CDD boards. Drop-in replacements seem hard to find File:Cre401.png [[http://www.b…")
 
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SIL capacitor/resistor array used for input ports. Also called "CR10-A-*" on late [[NEO-CDD boards]]. Drop-in replacements seem hard to find  
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Serial-In-Line capacitor and resistor array used on NeoGeo boards, to protect input ports and auxiliary circuits ([[MV-LED]]). Also found as "CR10-A-*" on late [[NEO-CDD boards]]. Drop-in replacements seem hard to find but using common 1/4W resistors seems to be enough for a quick fix.
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They are composed of 4 identical circuits. The leftmost pin's net pulls all outputs through 1k resistors. The 330 ohm resistors provide current protection (sometimes as fuses), the capacitors smooth out eventual spikes.
  
 
[[File:Cre401.png]]
 
[[File:Cre401.png]]
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[[http://www.bitechnologies.com/pdfs/cr.pdf Original manufacturer datasheet ("-A Circuit")]]
 
[[http://www.bitechnologies.com/pdfs/cr.pdf Original manufacturer datasheet ("-A Circuit")]]
  
[[Category:Electronics]]
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[[Category:Chips]]
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[[Category:Repairs]]

Latest revision as of 03:50, 3 March 2016

Serial-In-Line capacitor and resistor array used on NeoGeo boards, to protect input ports and auxiliary circuits (MV-LED). Also found as "CR10-A-*" on late NEO-CDD boards. Drop-in replacements seem hard to find but using common 1/4W resistors seems to be enough for a quick fix.

They are composed of 4 identical circuits. The leftmost pin's net pulls all outputs through 1k resistors. The 330 ohm resistors provide current protection (sometimes as fuses), the capacitors smooth out eventual spikes.

Cre401.png

[Original manufacturer datasheet ("-A Circuit")]