SL322C level drive display circuit and pin arrangement

The level driven display can display it with light according to the size of the level input signal. There are two commonly used ones: SL322C and
SL323.
    This circuit contains two sets of independent level drive indicators with completely consistent performance. Each group can be used independently to
drive 5 light-emitting diodes respectively; they can also be used in series or cross-series with each other to drive 10 light-emitting diodes. It is suitable for indicating the volume level in cassette recorders and home audio equipment, and can also be used for indicating the voltage level
in special instruments and automatic control equipment .     Main electrical parameters: Maximum operating voltage is 18V, static power supply current ≤ImA (no input) and ≤280mA (input level is 6V); lighting level is when the first lamp is on (≤1V), and both sets of lamps are on when connected in parallel (≤4V).     The SL322C level drive display circuit and pin arrangement are as shown in the figure