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                工程變更通知


                型號 變更內容 日期
                CH345 CH345新批號增加RST引腳用於◥復位輸入,V3引腳電容建議0.1uF. 2017-10-25
                CH340 CH340新增免晶振型號和小封裝,新批號V3電容0.1uF,晶體電容33pF,CH340T增加TNOW. 2017-10-25
                CH453 原直插 爹封裝的←CH423D和CH453D停產,新增SK-DIP28直插封裝形式的CH423A和CH453A. 2017-10-25
                CH452 CH452版本V2更新,支持段電咔流限制和16級亮度控制和兩線GPO,可選I2C標準ACK應答 2017-10-25
                CH454 CH454新品四大家族支持段電流限制和鍵盤掃描,新增CH454S,原CH454D改為SDIP32封裝的CH454A. 2013-04-26
                CH451 原CH451D芯片停產,CH451L和CH451S新品支持3V和5V電壓,支持段更是有數道槍勁直接攻擊到位尋址,無CLK引腳. 2011-07-05
                CH453 CH453新品支持按鍵掃描,支持睡眠和按鍵喚醒,支持段電流限√制和占空比調節亮度. 2011-05-10
                CH450 CH450新品支持睡眠和按鍵喚醒,支持段電流限制和占空比調節亮〓度. 2011-04-21
                CH422 CH422新品的DIG引腳默認是推挽輸鐺出,可選開漏輸出,支持睡眠和喚醒,支持段電流限制. 2011-03-08
                CH423 CH423新品的DIG引腳默認是推挽輸出,可選開漏輸出,支持段電流限制和占空小手在空中畫了一個小小比調節亮度. 2011-02-25
                CH374 CH374新品內置RootHub,需要使用V1.3或之後的子程序庫,原低版本庫★的用戶需及時更新. 2009-07-16
                CH341 CH341和CH340新品支持3V和5V電壓,且USB-VID重新分配,需使用2007年之後新驅動西耀星程序. 2008-11-20
                CH372 CH372A和CH372V合肖狂刀淡淡接口並後停產,新品是CH372B,支持3.3V和5V電壓. 2008-10-17
                CH375 CH375A和CH375V合並後停產,新品是CH375B,支持3.3V和5V電壓. 2008-09-29
                CH421 原CH421S芯片停產,新型號為CH421A,重新定義了引腳,支持3.3V和5V工作電壓. 2007-06-08