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ML9209 Datasheet(PDF) 1 Page - OKI electronic componets

Part No. ML9209
Description  Vacuum fluorescent display tube controller driver
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Maker  OKI [OKI electronic componets]
Homepage  http://www.oki.com
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OKI Semiconductor
FEDL9209-01
Issue Date: Oct. 20, 2004
ML9209-xx
Vacuum fluorescent display tube controller driver
1/29
GENERAL DESCRIPTION
The ML9209-xx is an alphanumeric type vacuum fluorescent display (VFD) tube controller driver IC which can
display alphanumeric characters, symbols, and bar charts.
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.
-01 is available as a general-purpose code.
Custom codes are provided on customer’s request.
FEATURES
• Logic power supply and vacuum fluorescent display tube driving power supply (V
DD)
: 3.3 V
±10% or 5.0 V±10%
• Vacuum fluorescent display tube driving power supply (V
FL)
: VDD – 20 V to VDD – 42 V
• VFD driver output current
(VFD driver output can be connected directly to the VFD tube.
No pull-down resistor is required.)
• Segment driver (SEG1–16)
: –6 mA (VFL = VDD – 42 V)
• Segment driver (AD1, 2)
: –15 mA (VFL = VDD – 42 V)
• Grid driver (COM1–16)
: –30 mA (VFL = VDD – 42 V)
• Content of display
• CGROM
: 16 segments
240 types (character data)
• CGRAM
: 16 segments
16 types (character data)
• ADRAM
: 16 (display digit)
× 2 bits (symbol data)
• DCRAM
: 16 (display digit)
× 8 bits (register for character data display)
• Display control function
• Display digits
: 1 to 16 digits
• Display duty (brightness adjustment)
: 16 stages
• All display lights ON/OFF
• Four interfaces with microcontroller:
DA,
CS, CP, RESET
• Instruction executable with 1 byte (excluding data write for each RAM)
• Built-in oscillation circuit (resistor & capacitor connected externally)
• Package options:
44-pin plastic QFP (QFP44-P-910-0.80-2K) (ML9209-xxGA)




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