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P28 ECU - Will These CHIPs work?

Old 02-16-2004, 09:43 PM
  #1  
0.5 BAR
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Join Date: Mar 2003
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Default P28 ECU - Will These CHIPs work?

I'm still trying to find the right Batronix chip model number, that will work with my P28 ECU and the Batronix Eprom Programmer.

From what I understand, the "stock" chip on the P28 ECU is the 27C256 EPROM.

I would like someone to confirm which of these chips will work best for this application:
-> M27C256B-10F1, 256K (32K*, 100ns, UV EPROM
-> SST27SF256-70-3C-PG, 256K (32K*, 70ns, Flash, el. erasable replacement for 27C256
-> AT28C256-15PI, 256K (32K*, 150ns, EEPROM
-> AT29C256-70PI, 256K (32K*, 70ns, Flash EPROM

All of them can be found on the Batronix website at:
http://www.progshop.com/shop/eproms/index.shtml#27C_DIP

Thanks,
Peter
D16Z6si is offline  
Old 02-16-2004, 10:05 PM
  #2  
0.5 BAR
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Default Re:P28 ECU - Will These CHIPs work?

I think that I've figured out which Chip I should get for my P28 ECU.

According to the article in clubboost.com:
http://clubboost.com/forum/index.php...&st=0&#entry93

...the 29C256-12PC CHIP can be used. Based on this, I think that I should get THIS chip from BAtronix:
AT29C256-70PI, 256K (32K*, 70ns, Flash EPROM

Someone please correct me if I'm wrong

P.
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Old 02-18-2004, 01:54 AM
  #3  
1.0 BAR
 
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Default Re:P28 ECU - Will These CHIPs work?

Yep the only one you listed that doesn't work is the 28 series. I can't remember the exact reason they don't work but I know that they do not.

-Michael
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Old 02-18-2004, 10:20 AM
  #4  
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Default Re:P28 ECU - Will These CHIPs work?

28C have different pinout - they're like the DS1230Y not the 27C/29C. A? and VPP are switched or sumthin.
blundar is offline  
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