Nippon Wireless has introduced a NJU6573, a 1600Segment dot matrix LCD driver IC, which is suitable for LCD panels such as automotive systems. Samples are available now. This article refers to the address: http:// [development background] ã€product Overview】 Feature 1 can represent 16COM×100SEG (1600 Segment) in a single package Feature 2 Wide 祯 frequency range (66Hz ~ 566Hz) ※VA liquid crystal (Vertical Alignment) Feature 3 Wide operating temperature range supports a wide operating temperature range of -40°C to +105°C required for automotive use. ã€application】 ã€Product Features】 [production plan / sample price]
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In recent years, with the popularization of digital audio, digital broadcasting, etc., the amount of content displayed on the car LCD panel has also increased. Considering the style problem, the information of audio, time and air conditioner is displayed together, which is called the information panel. The pen LCD liquid crystal has become the mainstream in the market. In response to market demand, Nippon Wireless has developed the NJU6573 multi-segment LCD driver that can display 1600Segment in a single package.
The NJU6573 is a dot matrix LCD driver IC consisting of a COM driver (16 drivers), a SEG driver (100 drivers), a boost circuit, an oscillating circuit, a shift register, and a latch circuit. In the past, the product was generally bare, and the NJU6573 was packaged in LQFP144 (20×20mm typ. t=1.70mm (MAX)), so it was easy to install and use.
A single package can represent 1600 pen segments (in the case of 5 x 7 dots, it is expressed as 20 x 2). It is most suitable for multi-segment, space-saving car audio.
The 祯 frequency range is extended from the previous 66 Hz to 94 Hz to the upper limit of 566 Hz, and the VA liquid crystal* display can be completed. Therefore, it is possible to support LCD liquid crystals of various frequencies.
In order to achieve high contrast, it can be displayed brightly at high duty cycles, and high working frequency is required.
・Car audio/information board
・LCD driver output up to 100SEG (16COM×100SEG)
1/16 duty ratio, 1600 segment drive, liquid crystal drive voltage 3.6V to 10.0V
・Offset ratio 1/5 offset ・Built-in booster circuit 3 times booster ・electronic potentiometer 16th grade (electronic potentiometer for brightness adjustment)
・Serial data transfer shift clock 2MHz Max.
・Oscillation circuit External impedance capacitor CR oscillation or external oscillation input ・Power supply voltage 3.3V
・CMOS Technology (P-Sub)
・Package LQFP144 (20×20mm typ. t=1.70mm(MAX))
・Sample supply has been started since July 2009.
・Production is expected to be 100,000 monthly production from October 2009.
・Sample price @¥700