How much is SONIX MCU's I/O pull-up resistor?
This point has been described in chip's specifications (Electrical Characte...
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When MCU I/O port is OPEN DRAIN output, is it allowed to supply higher voltage for its external pull-up resistor than IC supply voltage?
Sonix IC's open drain are pseudo open drain, external pull-up resistor volt...
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How to select in Code Option when using 1M crystal?
When the selected external oscillator frequency is less than 1MHz, the choi...
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How to simulate SN8P2308 RFC function?
When users develop product using 2308 RFC function, because there is no RFC...
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In AD application, what precautions should be taken for external circuit design and PCB layout?
1. In AD input signal circuit design, it is proposed to series connected an...
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Why program can run into external INT0 interrupt program while FP00IEN has already been cleared?
SONIX 8-bit MCU interrupt is that once received P0.0 interrupt condition, i...
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How much is Sonix MCU I/O port drive current?
I/O port drive current can be divided into source current and sink current,...
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Using Reset pin as input port (via ground key), why can not read low level?
1.Check Reset_Pin in Code Option if it is chosen right;2.For OTP MCU, this ...
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What precautions should be taken when using EEPROM?
1. EEPROM control pin must be pulled up with resistor, the recommended resi...
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When use Reset / Px.x pin as input port, why can not read high?
1.Users need to check whether the Reset option is selected Px.x in code opt...