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GENERAL DESCRIPTION

The ML9205-01 is a dot matrix vacuum fluorescent display tube controller driver IC which displays characters, numerics and symbols.

Dot matrix vacuum fluorescent display tube drive signals are generated by serial data sent from a micro-controller. A display system is easily realized by internal ROM and RAM for character display.

FEATURES

? Logic power supply (VDD) : 3.3 V±10 or 5.0 V±10

? Fluorescent display tube drive power supply (VDISP) : 3.3 V±10 or 5.0 V±10

? Fluorescent display tube drive power supply (VFL) : –20 to –60 V

? VFD driver output current

(VFD driver output can be connected directly to the fluorescent display tube. No pull-down resistor is required.)

· Segment driver (SEG1 to SEG35) : –5.0 mA (VFL= –60 V)

· Segment driver (AD1 to AD4) : –10.0 mA (VFL= –60 V)

· Grid driver (COM1 to COM24) : –50.0 mA (VFL= –60 V)

? General output port output current

· Output driver (P1 to P4) : ±1.0 mA (VDD = 3.3 V±10) ±2.0 mA (VDD = 5.0 V±10)

? Content of display

· CGROM 5 x 7 dots : 240 types (character data)

· CGRAM 5 x 7 dots : 16 types (character data)

· ADRAM 24 (display digit) x 4 bits(symbol data)

· DCRAM 24 (display digit) x 8 bits(register for character data display)

· General output port 4 bits (static operation)

? Display control function

· Display digit : 9 to 24 digits

· Display duty (brightness adjustment) : 8 stages

· All lights ON/OFF

? 3 interfaces with microcontroller : DA, CS, CP (4 interfaces when RESET is added)

? 1-byte instruction execution (excluding data write to RAM)

? Built-in oscillation circuit (external R and C)

? Package options:

80-pin QFP package (QFP80-P-1414-0.65-K) (Product name : ML9205-01GP)

80-pin QFP package (QFP80-P-1420-0.80-BK)(Product name : ML9205-01GA)