Logic interface issues in 3V and 5V mixed systems - DSP and ARM Processors

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【Posts】I would like to ask for a switch circuit or chip that can be turned on when the output is 5V and turned off when the output is below 3V.
【Posts】Help post, please tell me how to convert 7.2V power supply to 5V or 3V low power chip
【Posts】I have tested the 485 communication and found that the voltage between the 485 lines of the controller and the 485 module at the meter end is about 3V.
【Posts】Regarding the abnormally low gain of the 2nd-order MFB low-pass filter (+-5v power supply, 8KHz cutoff, theoretical gain 0dB) (there is a principle...
【Posts】I have tested the 485 communication and found that the voltage between the 485 lines of the controller and the 485 module at the meter end is about 3V.
【Posts】The battery output is DC3.0V after LDO. Why does it slowly rise from 0V to 3V when tested with an oscilloscope?
【Posts】Please tell me why the 5V can't be turned off in this picture
【Posts】Ground interference problem? (Attached circuit diagram, powered by USB 5V 1A)
【Download】Logic interface issues in 3V and 5V mixed systems
【Download】Logic Interface Technology of MSP430 in 3V and 5V Mixed System
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【Articles】Solutions to logic interface problems in 3V and 5V mixed systems
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【Articles】Logic interface technology of low power MSP430 microcontroller in 3V and 5V mixed system
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I would like to ask for a switch circuit or chip that can be turned on when the output is 5V and turned off when the output is below 3V.
[i=s]Thispostwaslasteditedbyz45217on2023-11-1415:54[/i]Asthetitlesays,thereisadevicethatoutputs5V2Awhenrunning,butalsohasanoutputbelow3Vwheninsleepmode,soIwanttoaddaswitchcircuitbehinditItcanrealizethatwhenthepowersupplyoutputs5V,theswitchi ...
Help post, please tell me how to convert 7.2V power supply to 5V or 3V low power chip
Pleasesharethelow-powerchiporcircuitconstructionof7.2Vpowersupplyto3Vor5V,thankyouall
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