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Hi, I want to make a circuit consisting of transistor switch which turns on AT89S52 uC when base drive is applied. It consisting of 2N2369 NPN transistor, collector of which is connected to Vcc (+5V) and emitter is connected to Vcc pin of uC (40th pin of AT89S52) when proper base drive is applied it turns on uC. But don’t know this will work or damage transistor/uC. Please any one reply. If it don’t work please mention why? Thank you.
Hi Ganesh,
Let me tell you first up that it is a very bad idea. Your microcontroller need 5V for proper working and if you use a transistor, it will drop significant amount of voltage across it and the microcontroller will not get 5V. Again I never seen such a circuit so far.
If you want to save power, you can use sleep mode of the microcontroller. Suggest you to post more details about your project so that I can help you better.
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