Inside the 99 Chrysler 300M ECM/TCM

[AL8001 at aol.com]

For a upcoming project, I've purchased a 99 Chrysler 300M  V6   3.5L 
engine/trans/computer.  At some point in the future I would like to alter the 
speed limiter/rev limiter and possibly some other items.  

For general information I will post some of the major chips in the ECM and 
the Trans controll module.  All of these numbers have shown up on the  
www.jjsurface.com web site, even though they don't show up on the chips 
manufacturers site.   JJ surface states they will sell in quanities of 1 to 
1,000,000.  Perhaps they could help with other automotive chips.


Engine Module
PN  04606840AP
It also has a serial number, wonder if it's also imbeded in the flash chip?
Potted in clear/amber silicone.

Device purpose        Memory
PN                          M28F220-90M3
Brand                       ST         ( www.st.com)
Package                   SO44
4M Flash memory, soldered to the board

Device purpose      Unknown
PN                       4745389
Brand                   ST           
Package               Rectangular, pins on all sides ~ 18 pin X ~26 pin
Shows up on the www.jjsurface.com site, but not on www.st.com

Device Purpose     CPU
PN                       SC435409MFC16  (Copyright Chrysler 95)
Brand                   Motorola
Package               Square, pins on all sides ~110 total
Shows up on the www.jjsurface.com site but not on the    search.motorola.com  
  site

Device Purpose      Unknown
PN                        04812391AB  Chry Corp97
                            H9833BRJN
Brand                    H in a square,    Harris  ( www.semi.harris.com)
Package                Rectangular 28 pin surface mount
It's listed on the JJ Surface site but not on the Harris site. Dosn't seem to 
be knock sensing, the KS IC on the Harris site has 20 pins.    Harris seems 
to have a good automotive area           
http://www.semi.harris.com/auto/index.htm




Trans Computer

PN   04606936AD
It also has a serial number, wonder if it's also imbeded in the flash chip?
Potted in clear/amber silicone.

Device purpose        Memory
PN                         M28F102-150XK3
Brand                     ST
Package                 Square, pins on all sides PN says it is a PLCC44 
package, but it is a soldered surface mount.


I'll post more info as it becomes available.

Harold