#lowpowerdesign — Public Fediverse posts
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Clarification for developers using the KT142C voice playback chip:
If you're measuring a very low voltage (~0.2V) on the BUSY pin when the chip is idle, your hardware is likely fine! This is a key feature.
After about 5 seconds of inactivity, the chip enters an ultra-low-power state, drawing only 2 μA. In this mode, the BUSY pin becomes high-impedance, leading to the low voltage reading.
https://www.linkedin.com/pulse/kt142c-chip-busy-pin-idle-voltage-only-02v-low-power-mode-tsui-c8qhc
#EmbeddedSystems #HardwareDesign #LowPowerDesign #CircuitDesign #KT142C #Engineering