MAX6921 drivers equivalent, (max6921 / max6931) serial-interfaced vfd tube drivers.
o 5MHz Industry-Standard 4-Wire Serial Interface o 3V to 5.5V Logic Supply Range o 8V to 76V Grid/Anode Supply Range o -11V to 0V Filament Bias Supply (MAX6931 Only) o Pu.
The MAX6921 is available in 28-pin TSSOP, SO, and PLCC packages. The MAX6931 is available in a 28-pin TSSOP package. Ma.
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