资料下载
AS1105,pdf (4-Digit LED Driver
20762
分享资料个
The AS1105 is a LED driver for 7 segment numeric displays of up to 4 digits. The AS1105 can be programmed via a conventional 4 wire serial interface. It includes a BCD code- B decoder, a multiplex scan circuitry, segment and display drivers and a 32 Bit memory. The memory is used to store the LED settings, so that continuos reprogramming is not necessary. Every individual segment can be addressed and updated separately. Only one external resistor is required to set the current through the LED display. Brightness can be controlled either in an analog or digital way.
The user can choose the internal code-B decoder to display numeric digits or to address each segment directly. The AS1105 features an extremely low shutdown current of only 20µA and an operational current of less than 500µA. The number of visible digits can be programmed as well. The AS1105 can be reset by software and an external clock can be used. Several test modes support easy debugging. AS1105 is offered in a 20 pin SOIC package.
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
- 相关下载
- 相关文章
