Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
What are you wanting to do?, the 16F877 doesn't have any battery backup capability - but you could quite easily power the device as normal from a battery. You obviously need to design the entire circuit for low power consumption though, if running off a mains supply you don't normally bother.
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