The ML9226 is a full CMOS controller/driver for Duplex or Triplex vacuum fluorescent display tube. It conststs of 32-segment driver outputs and 3-grid pre-driver outputs, so that it can drive directly up to 96-segment VFD. ML9226 features a digital dimming function, a 8-ch ADC, a 5 × 5 keyscan circuit and an encoder type switch interface. ML9226 provides an interface with a microcontroller only by four signal lines: DATA I/O, CLOCK, CS.
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