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首頁 >> 産品 >>配套類 >>時鍾電路 >> 涓流充電實時時鍾芯片 AiP1302

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涓流充電實時時鍾芯片 AiP1302

産品型号：: AiP1302

産品名称：: 涓流充電實時時鍾芯片

封裝形式：: SOP8/DIP8/TSSOP8

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主要特點
參數類型

AiP1302是一塊涓流充電時鍾芯片電路，包括時鍾/日曆寄存器和31字節（8位）的數據暫存寄存器，數據通信僅通過一條串行輸入輸出口。實時時鍾/日曆提供包括秒、分、時、日期、月份和年份信息。閏年可自行調整，可選擇12小時制和24小時制，可以設置AM、PM。
只通过三根线进行数据控制和传递：RST（Reset）、I/O（Data line）、SCLK（Serial clock）。通过备用电源可以让芯片小于1MW的功率下运作

 时钟计数功能，可以对秒、分、时、日、星期、月、年的计数。年数可达2100年。
 较少I/O引脚传输，通过3引脚控制
 内置高速数据暂存的31 字节非易失性RAM
 工作电压：2.0~5.5V
 工作电流小于320nA（2.0V）
 读写时钟寄存器或内部RAM，可以采用单字节或多字节数据传输模式
 兼容TTL（5.0V）
 兼容DS1202、DS1302较DS1202增加的功能：
1、可通過VCC1進行涓流充電
2、雙重電源補給
3、備用電源可采用電池或者超級電容（0.1F以上）

應用說明：
主電源供電時可接一個0.1uF的去耦電容，可有效提高電源端抗幹擾能力。
晶振選取32.768KHZ，啓動電容C1、C2建議值爲12pF，當計時不精確時可適當調節C1、C2的容值，容值越大計時越慢，容值越小，計時越快。
通訊端口可以外接上拉電阻提高通訊抗幹擾能力，阻值1k~10k。
備用電源可以采用3V的紐扣電池或大電解電容（漏電小），100uF可以保證1小時的正常計時。
AiP1302在第一次上電後，必須進行初始化操作，初始化後即可正常調整時間

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