IDM
EDU-100A with chip locations.
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IDM EDU-100A Chip location reference |
In the abstract we need not worry about chip names, functions, or appearance. A simple reference and lookup table solve a lot of problems associated with hardware obfuscation. Navigation is pretty strait forward simply click on a highlighted URL within the text or on one of the chips within the image map.
Here is a quick cheat sheet on the terminology used here:
L = Location
P = Pin
( ) = Entity
Some chips may have multiple connection points and considering this fact an example is provided for mnemonic sentence structure clarification.
Example: Driven by (L1-P1) Connected with (L1-P3,4) (L5-P1) (L3-P10)
This means that Location 1 Pin 1 Is driving the current pin reference and Location1 Pins 3 and 4, location 5 pin 1 and location 3 pin 10 are ALL connected to the reference. The parenthesis indicate the beginning and end of abstracted entities. This sentence structure allows a great deal of meaningful information to be presented with relatively limited table resources.
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Click on the location image map or table number for more detailed information. To download the data sheet click on the part number.
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Location |
Equivalent Part |
Description of Part |
General Comments |
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Quad 2-input AND gate |
Logical Enable for Fuel Injector Sink transistors |
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Quad 2-input AND gate |
Logical Enable for Fuel Injector Sink transistors |
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- - - |
Amplifier? |
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- - - |
CML / CMOS transceiver |
This verifies that the PCM signal is OEM |
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Quad 2-input AND gate |
Output of gate numbers 1 and 2 are logical enable for the Fuel injector Feeders |
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Quad 2-input OR gate |
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- - - |
Amplifier? |
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MCU |
8 bit MCU with 256 bytes SRAM, 512 bytes EEPROM, and 8192 bytes EPROM(OTP). With buffalo boot ROM |
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Quad 2-input AND gate |
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Schmitt Trigger Hex Inverter |
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Quad 2-input AND gate |
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Dual Digital Potentiometer |
The IDM internal computer can adjust the amount of current delivered to the injectors |
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Schmitt Trigger Hex Inverter |
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Quad Amplifier |
In combination of #12 and #16 an adjustable gain closed loop current feedback is formed |
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Quad 2-input AND gate |
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- - - |
Programmable Voltage Ref? |
The IDM has this chip hard-wire set to be a 2.5 volt reference |
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Dual D Type Positive Edge FF |
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- - - |
Amplifier? |
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Automotive Current Mode PWM Control Circuit |
Control IC used in the IDM high voltage power supply. |
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5V Linear Controller/Driver |
Low voltage supervisory and control circuit. |