Dear All;
I am working on a project that requires DO-254 compliance. We are required to classify UC2625 IC to identify the verifying requirements(tests). We need to answer following questions;
- Is it an Application Specific IC(ASIC)? Does it contain any programmable element?
- Is applying all possible input combinations results in all possible outputs? (To elobarate more, this question is to determine any internal states/state machines independent of inputs)
From out point of view, based on our limited information from product datasheet, there are no hardcore elements(registers), with IC being a combination of analog/logic circuit elements hence applying all possible combinations of inputs cover all possible outputs.However, to justify this, we need to do a elemental analysis hence we need following information
- What is the internal structure of "DECODER" (elemental decomposition) ?
- What is the size of shift register used in Cross Conduction Prevention sub-circuit? (It appears to be two, and the shift registers is a part of output flip flops?)
Also any information including but not limited to
- service history for UC2625-EP
- elaboration/information on internal structure and operation of UC2625-EP(anything you can add to datasheet)
will greatly help.
I hope you will be able to provide information.
regards,
hakan
