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FEDL9213-01L Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 19 page FEDL9213-01 1Semiconductor This version: Oct. 2001 ML9213 56-Bit Duplex/Triplex (1/2 duty/1/3 duty) VFD Controller/Driver with Anode Digital Dimming 1/19 GENERAL DESCRIPTION The ML9213 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. ML9213 features a selection of a master mode and a slave mode, and therefore it can be used to expand segments for the VFD driver with keyscan and A/D converter function. ML9213 provides an interface with a microcontroller only by three signal lines: DATA IN, CLOCK and CS. FEATURES N Logic supply voltage (V DD) : 5.0 V H10% N Driver supply voltage (V DISP) : 8.0 to 18.0 V N 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 N Number of display segments 112 segments max. (during 1/2 duty mode) 168 segments max. (during 1/3 duty mode) N Master/Slave selectable M/ S = “H” level : Master mode M/ S = “L” level : Slave mode N Interface with a microcontroller Three lines: CS, CLOCK, and DATA IN N 56-segment driver outputs : I OH = –5.0 mA at VOH = VDISP–0.8 V (SEG1 to 37) (can be directly connected to VFD tube : I OH = –10.0 mA at VOH = VDISP–0.8 V (SEG38 to 56) and requires no external resistors) : I OL = 500 2A at V OL = 2.0 V (SEG1 to 56) N 3-grid pre-driver outputs : I OH = –5.0 mA at VOH = VDISP–0.8 V (requires external drivers) I OL = 10.0 mA at VOL = 2.0 V N Logic outputs : I OH = –200 2A at V OH = VDD–0.8 V I OL = 200 2A at V OL = 0.8 V N Built-in anode digital dimming circuit (10-bit resolution) N Built-in oscillation circuit (external resistor and capacitor) N Built-in Power-On-Reset circuit N Package options: 80-pin plastic QFP (QFP80-P-1420-0.80-BK) Product name: ML9213GA 80-pin plastic QFP (QFP80-P-1414-0.65-K) Product name: ML9213GP |
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