ML9222GA

更新时间： 2024-10-02 10:54:19

品牌	Logo	应用领域
冲电气 - OKI		驱动器控制器
页数	文件大小	规格书
25页	237K
描述
32-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan

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数据手册

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ML9222GA 数据手册

FEDL9222-02

This version: Feb. 2000

Previous version: Nov. 1999

¡ Semiconductor

ML9222

32-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan

GENERAL DESCRIPTION

The ML9222 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.

ML9222 features a digital dimming function, a 8-ch ADC, a 5 ¥ 5 keyscan circuit and an encoder

type switch interface.

ML9222 provides an interface with a microcontroller only by four signal lines: DATA I/O,

CLOCK, CS and INT.

FEATURES

• Supply voltage (V

)

: 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

: I =–5mA at V =V –0.8V (SEG1 to 22)

=–10mA at V =V –0.8V (SEG23 to 32)

OH DD

• 3-grid pre-driver outputs

: I =10mA at V =2V

• 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)

Product name: ML9222GA

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