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徒弟:请师傅介绍一下W91550AF液晶显示拨号芯片的引脚功能及作用。师傅:W91550AF为(60)脚扁平封装芯片,其①脚V_(LCD)为液晶显示电源正端,其工作电压为2.5～5.5V;②脚CN;③脚CP为芯片外接电容端;④～(36)脚LCD为液晶显示屏驱动电压输出端;(37)脚V_(ss)为电源接地负端;(38)脚DTMF为双音频信号输出端;(39)脚M/B为
Apprentice: Please master about W91550AF LCD dial-up chip pin functions and functions. Master: W91550AF (60) feet flat package chip, the ① pin V_ (LCD) is the positive terminal of the LCD power supply, the operating voltage of 2.5 ~ 5.5V; ② feet CN; ③ feet CP for the chip external capacitor side; ④ ~ (37) feet V_ (ss) for the negative ground; (38) feet DTMF dual audio signal output; (39) feet M / B is