ML9211 Overview
Description
1999 ML9211 el Pr im in y ar 56-Bit Duplex/Triplex (1/2 duty / 1/3 duty) VF Controller/Driver with Digital Dimming The ML9211 is a full CMOS controller/driver for Duplex or Triplex (1/2 duty or 1/3 duty) vacuum fluorescent display tube. It consists of a 56-segment driver multiplexed to drive up to 168 segments, and 10-bit digital dimming circuit.
Key Features
- Logic supply voltage (VDD) : 4.5 to 5.5V : 8 to 18V
- Driver supply voltage (VDISP)
- Duplex/Triplex (1/2 duty / 1/3 duty) selectable DUP/TRI=1/2 duty selectable at "H" level DUP/TRI=1/3 duty selectable at "L" level
- Number of display segments Max. 112-segment display (during 1/2 duty mode) Max. 168-segment display (during 1/3 duty mode)
- Master/Slave selectable M/S=Master mode selectable at "H" level M/S=Slave mode selectable at "L" level
- Interface with a microcontroller Three lines: CS, CLOCK, and DATA IN
- 56-segment driver outputs : IOH=–5mA at VOH=VDISP–0.8V (SEG1 to
- (can be directly connected to VFD tube : IOH=–10mA at VOH=VDISP–0.8V (SEG38 to
- and require no external resistors) : IOL=500mA at VOL=2V (SEG1 to
- 3-grid pre-driver outputs : IOH=–5.0mA at VOH=VDISP–0.8V (require external drivers) IOL=10mA at VOL=2V
