IC E310 (M59107)
Level Converter
About
Converts between 5v <-> 12v
44-pin PLCC
Photo
Pin Layout
This is still in the early discovery phase
Power pins:
12V - 20 0V - 21,22
5V - 2,42 0V - 44
12V input to 5V output:
1 ----> 10 41 ---> 16 40 ---> 15 (non-inverted) - pin 40 is usually the crank sensor input ---> 14 (inverted) 39 ---> 3 38 ---> 4 36 ---> 5 35 ---> 6 33 ---> 7 32 ---> 8 28 ---> 27 Pins 23 and 25 are connected to 12V via 390R resistors, these appear to power two sets of 12V outputs. The 8V ECUs used in these vehicles only have pin 25 powered, other ECUs that use more 12V drives have both connected. Pin 13 is an output enable or reset pin and must be pulled low to enable the 12V outputs, on a 56B this pin is connected pin 11 of the E528A microprocessor supervisor (see post above). 5V input to 12V output:
18 ---> 24 19 ---> 26 29 ---> 37 31 ---> 34
The following are so far undetermined:
9 - sits at 5V (J2 unfitted to 0V on 56B) 11 - sits at 5V 12 - sits at 0V (connected to a processor pin on 56B) 17 - sits at 5V 30 - connected to a processor pin on another ECU
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