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參數(shù)資料
| 型號： | MSM9223 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 27-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan |
| 中文描述： | 27位雙/三層VFD控制器/驅(qū)動器，帶有數(shù)字調(diào)光，ADC和鍵盤掃描 |
| 文件頁數(shù)： | 1/25頁 |
| 文件大小： | 237K |
| 代理商： | MSM9223 |
Semiconductor
MSM9223
1/24
GENERAL DESCRIPTION
The MSM9223 is a full CMOS controller/driver for Duplex or Triplex vacuum fluorescent
display tube. It conststs of 27-segment driver outputs and 3-grid pre-driver outputs, so that it
can drive directly up to 81-segment VFD.
MSM9223 features a digital dimming function, a 6-ch ADC, a 5 5 keyscan circuit and an encoder
type switch interface.
MSM9223 provides an interface with a microcontroller only by three signal lines: DATA I/O,
CLOCK and CS.
FEATURES
Supply voltage (VDD)
: 8 to 18.5V (Built-in 5V regulator for logic)
Duplex/Triplex selectable
Applicable VFD tube
: 2 Grids 27 Anodes VFD tube
: 3 Grids 27 Anodes VFD tube
27-segment driver outputs
: IOH=–5mA at VOH=VDD–0.8V (SEG1 to 19)
IOH=–10mA at VOH=VDD–0.8V (SEG20 to 27)
3-grid pre-driver outputs
: IOL=10mA at VOL=2V
Built-in digital dimming circuit (10-bit resolution)
Built-in 6-ch A/D converter
Built-in 5 5 keyscan circuit
Interface circuit for an encoder type rotary switch
Built-in oscillation circuit (external R and C)
Built-in Power-On-Reset circuit
Package:
64-pin plastic QFP (QFP64-P-1420-1.00-BK)
Product name: MSM9223GS-BK
Semiconductor
MSM9223
27-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan
E2C0044-19-96
This version: Sep. 1999
Previous version: Aug. 1999
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