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27C256 29 Apr 2004 - 02:54 - r1.2 Home.rschoener
The 27C256 is the basic EPROM commonly used to chip ECUs. It is a 32k byte (256kbit) chip. 27C256 chips are generally either OTP or UV-Erase . Beware tho! Most honda ...  
27SF256 09 Mar 2004 - 19:29 - r1.2 Home.blundar
This is supposed to be an electrically-erasable replacement for 27C256 . http://www.sst.com/downloads/datasheet/S71152.pdf SST Datasheet (PDF) These can be purchased ...  
28C256 12 Apr 2004 - 20:42 - NEW Home.tungsten2k
28C256 EEPROM s will work in ECUs, but require pins to be moved around/altered due to them being a different pinout than either 27C256 or 29C256 chips. http://rocky ...  
29C010 18 Nov 2006 - 17:46 - NEW Home.longbow
The http://www.atmel.com ATMEL AT29C010 chip is a FLASH ROM chip with 1Mbit(~128kb) of memory. It can be found in old Pentium I II computer motherbords. This chip ...  
29C256 25 Nov 2004 - 12:45 - NEW Home.ltdannear
the http://www.atmel.com ATMEL AT29C256 chip is the de facto FLASH ROM chip in use. It uses a 5V programming voltage, can be erased repeatedly electronically. They ...  
ChippingAn88-89ECU 21 Sep 2005 - 08:24 - r1.8 Home.1net
OBD0MPFI ECUs have two main designs that affect how the ECU is chipped. 90-91 ECU s have an external 38256 (same as 27C256 ) ROM . This can be removed and replaced ...  
ChipsForECUs 29 Mar 2004 - 21:20 - r1.2 Home.blundar
all 90-95 (most OBD0 and all OBD1 ) honda ECUs require a 32k byte (256kbit) ROM . Some common chips used by the DIY-chipping scene are the 27C256 , AT 29C256 and 27SF256 ...  
EPROM 19 Feb 2004 - 22:01 - NEW TWiki Guest
Electrically Programmable ROM ROM that can be programmed using a RomBurner The most common types pin-compatible with most OBD0 and OBD1 Honda ECU s are the 27C256 ...  
EasyRtpV10 22 Dec 2004 - 20:36 - r1.10 Home.synoptic
This page is a construction design for the Easy-RTP V1.0 board. This is the single sided design for a DS1230 style 28 pin DIP NVSRAM. You can find the eagle design ...  
ElectronicPartSupplier 22 Jun 2004 - 02:15 - NEW Home.phiz
a handful of major electronic part suppliers: http://www.digikey.com Digikey good in-stock availability, great catalog, good website. http://www.arrow.com Arrow ...  
Epromer5 19 Feb 2004 - 22:01 - NEW TWiki Guest
A perpetual favorite among the GM crowd, the Epromer5 is a solid, tried and true product. As of October 10, 2003, prices ranged from $94.50 to $114.50 depending on ...  
Eprommer5 19 Feb 2004 - 22:01 - NEW TWiki Guest
A perpetual favorite among the GM crowd, the Epromer5 is a solid, tried and true product. As of October 10, 2003, prices ranged from $94.50 to $114.50 depending on ...  
IntroductionToECUChipping 12 May 2006 - 09:00 - r1.10 Home.hondainfo
Introduction to ECU Chipping by David Blundell Please feel free to link to this article, but "mirroring" is highly discouraged, as you will not automatically receive ...  
NVSRAM 23 Mar 2006 - 19:36 - r1.3 Home.Nuno Euro VTi?
NVSRAM Non Volatile SRAM fast, byte addressible, byte write, RAM that retains its contents after power is lost. NVSRAM usually takes one of several forms: Battery ...  
PH3 30 Jan 2006 - 07:20 - NEW Home.carotman
THe 88-89 Accord OBD-0 B20A ECU uses an Electronic Advance distributor. It has an External 27c256 ROM and is oki 80c154 based This ECU is very similar to the PK2 ECU ...  
PK2 18 Oct 2006 - 08:41 - r1.5 Home.chen
Prelude OBD-0 B20A ECU. Electronic Advance. External 27c256 ROM. oki 83c154 based pk-2 ecu photo.: I posted the Options Close-up for the PK2-6640 manual B20A ECU. ...  
RomBurner 29 Mar 2004 - 21:23 - NEW Home.blundar
A ROM Burner is a device that programs ROM , EPROM , EEPROM , FLASH chips. There are several ROM burners that are worth mentioning for the DIY enthusiast. It does ...  
RtpTruthTable 19 Feb 2004 - 22:01 - NEW TWiki Guest
Peusdotruth table for RTP logic compatible with both OBD0 and OBD1 hardware: (/PSEN) (OBD1) (DS1230AB) A15 /WR /OE /CS /IOWE /WE /OE /CE 0 a b c a 1 b c 1 a X X 1 ...  
UberDataFAQ 19 Feb 2004 - 22:01 - NEW TWiki Guest
Uberdata FAQ Stupid newbie tard Uberdata FAQ Author: Blake Warner Email: uberteg@cox.net, vertigo118@cox.net Notes: Remember to donate if you use and enjoy this software ...  
WebStatistics 07 Nov 2007 - 15:33 - r1.261 TWiki Guest
Statistics for Library Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: Nov 2007 19044 0 ...  
Willem 24 Nov 2005 - 00:08 - r1.4 Home.4g vtec
The http://www.willem.org Willem programmer is essentially an open design / open source ROM burner. It is far from a polished design the software was very buggy and ...  

Number of topics: 21

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