Difference between revisions of "CRE401"

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[[File:Cre401.png]]
 
[[File:Cre401.png]]
  
[[http://www.bitechnologies.com/pdfs/cr.pdf Original manufacturer datasheet ("-A Circuit")]]
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Datasheet: [[File:Cr.pdf|Cr.pdf]] ("-A Circuit")
  
 
[[Category:Chips]]
 
[[Category:Chips]]
 
[[Category:Repairs]]
 
[[Category:Repairs]]

Latest revision as of 21:07, 30 October 2019

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

Datasheet: File:Cr.pdf ("-A Circuit")