- #1
sandeepmrocks
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What is the difference between IC BT66 and UM66?
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The discussion centers on the differences between the ICs BT66 and UM66, specifically in the context of building a fire alarm. The original poster is unsure if these two ICs function the same way and seeks guidance on their compatibility. Additionally, they request resources for internal circuits of UM66, TD2002, and 7805. A response suggests searching for datasheets and application notes online for detailed information. Experimentation may be necessary to determine the best setup for the light source and LDR used in the project.
- #2
NascentOxygen
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sandeepmrocks said:i am going to build this fire alarm.
i got IC BT66 in place of UM66 . I want to ask that are BT66 and UM66 same or is their any difference of work. Also can anyone suggest any site where i can get internal circuits of the IC's UM66,TD2002,7805. thanks in advance .
Hi sandeepmrocks, http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif
I can't comment on BT66 vs. UM66. To find pinouts and further details, search on google using the strings UM66 "data sheet" or UM66 "application note".
Unless your construction notes give you details of the light source and LDR, you may need to do some experimentation to establish a working arrangement for whatever light source and LDR you purchase.
Happy experimenting!
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