Description
Positive power, continuous current not less than 100mA
Common ground, continuous current not less than 100mA
Segment drive of LED nixie tube, active at high level Bidirectional input and output, built-in weak pull-up
resistor Word drive of LED nixie tube, active at low level General purpose output,
Features
- Dynamic display scanning control, direct drive of 4-bit LED nixie tubes or 32 LEDs.
- Built-in current driving stage, segment current driving capacity not less than 15mA, output word
current not less than 100mA.
- Built-in clock oscillator circuit, no need to provide external clock or external oscillator components,
more anti-interference.
- 8 general-purpose I/O pins, GPIOs, and 4 general-purpose output pins, GPOs, are extended remotely
through a two-wire serial interface.
CH422 Datasheet
