GENERAL DESCRIPTION
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.

FEATURES
• Supply voltage (VDISP) : 8 to 18.5V (Built-in 5V regulator for logic)
• Duplex/Triplex selectable
• Applicable VFD tube : 2 Grids × 32 Anodes VFD tube
                                    : 3 Grids × 32 Anodes VFD tube
• 32-segment driver outputs : IOH = –5 mA at VOH = VDISP – 0.8 V (SEG1 to 22)
                                               IOH = –10 mA at VOH = VDISP – 0.8 V (SEG23 to 32)
                                               IOL = 500 uA at VOL = 2.0 V (SEG1 to 32)
• 3-grid pre-driver outputs : IOH = – 5.0 mA at VOH = VDISP – 0.8V
                                            IOL = 10 mA at VOL = 2.0V
• Built-in digital dimming circuit (10-bit resolution)
• Built-in 8-ch A/D converter
• Built-in 5 × 5 keyscan circuit
• 3 interface circuits for an encoder type rotary switch
• Built-in oscillation circuit (external R and C)
• Built-in Power-On-Reset circuit
• Package:
    80-pin plastic QFP (QFP80-P-1420-0.80-BK) ( ML9226GA)