</a>LED" title="LED">LED" title="LED">LED控制器驅動器,最大顯示段為16x8,并帶有133陣列掃描電路,工作電壓4.5V-5.5V,軟件配置特性使得很適合多個LED應用,通過兩線雙向I2C總線和大多數MCU兼容,主要用在工業控制指示器,數字時鐘,溫度計,計數器,VCR,儀表讀出,顯示器" title="LED顯示器">LED顯示器和其它消費類電子應用.本文介紹了HT16K33主要特性, 方框圖, 16x8, 15x8, 12x8, 11x8和8x8, 7x8顯示器應用電路圖.

RAM Mapping 16*8 LED Controller Driver with keyscan

The HT16K33 is a memory mapping and multi-function LED controller driver. The max. Display segment numbers in the device is 128 patterns (16 segments and 8 commons) with a 13*3 (MAX.) matrix key scan circuit. The software configuration features of the HT16K33 makes it suitable for multiple LED applications including LED modules and display subsystems. The HT16K33 is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus.

HT16K33主要特性:

●●Operating voltage: 4.5V~5.5V

●●Integrated RC oscillator

●●I2C-bus interface

●●16*8 bits RAM for display data storage

●●Max. 16 x 8 patterns, 16 segments and 8 commons

●●R/W address auto increment

●●Max. 13 x 3 matrix key scanning

●●16-step dimming circuit

●●Selection of 20/24/28-pin SSOP package types

HT16K33應用:

●●Industrial control indicators

●●Digital clocks, thermometers, counters, multimeters

●●Combo sets

●●VCR sets

●●Instrumentation readouts

●●Other consumer applications

●●LED Displays

圖1.HT16K33方框圖

圖2.HT16K33 16x8顯示器應用電路圖

圖3.HT16K33 15x8顯示器應用電路圖

圖4.HT16K33 12x8顯示器應用電路圖

圖5.HT16K33 11x8顯示器應用電路圖

圖6.HT16K33 8x8顯示器應用電路圖

圖7.HT16K33 7x8顯示器應用電路圖
詳情請見:
http://www.holtek.com.tw/PDF/consumer/ht16K33v100.pdf