{"type":"product","schema_version":"1.0","item_id":"100779941400","canonical_url":"https://tw.bid.yahoo.com/item/100779941400","title":"DS1302 即時時鐘模組 帶電池CR2032 掉電走時 促銷特價 W313-191210[361239]","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-05-01T03:04:46.890Z","current_price":15,"original_price":null,"stock_status":"in_stock","available_quantity":28,"sold_quantity":2,"seller":{"id":"Y2831399681","name":"。BUY360。電子零件","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/88602e4f-2271-4951-b7c6-ad7bac8383d4.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b24c7db7-dc63-4b2b-85ef-2f063e990a7f.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/f7afa834-e44c-412f-8336-5d1e7ae0f230.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null}],"description":"DS1302 即時時鐘模組 帶電池CR2032 掉電走時\n\n        \n\n  產品簡介：\n\n  DS1302 是DALLAS 公司推出的涓流充電時鐘晶片，內含有一個即時時鐘/日曆和31 位元組靜態RAM ，通過簡單的序列介面與單片機進行通信。即時時鐘/日曆電路提供秒、分、時、日、周、月、年的資訊，每月的天數和閏年的天數可自動調整。時鐘操作可通過AM/PM 指示決定採用24 或12 小時格式。DS1302 與單片機之間能簡單地採用同步串列的方式進行通信，僅需用到三個口線：（1）RST 重定（2）I/O 資料線（3）SCLK串列時鐘。時鐘/RAM 的讀/寫資料以一個位元組或多達31 個位元組的字元組方式通信。DS1302 工作時功耗很低保持資料和時鐘資訊時功率小於1mW\n\n  DS1302主要性能指標：\n\n  ★ 即時時鐘具有能計算2100 年之前的秒、分、時、日、星期、月、年的能力，還有閏年調整的能力\n\n  ★ 31 8 位元暫存資料存儲RAM\n\n  ★ 串列 I/O 口方式使得管腳數量最少\n\n  ★ 寬範圍工作電壓2.0 5.5V\n\n  ★ 工作電流 2.0V 時,小於300nA\n\n  ★ 讀/寫時鐘或RAM 資料時有兩種傳送方式單字節傳送和多位元組傳送字元組方式\n\n  ★ 8 腳DIP 封裝或可選的8 腳SOIC 封裝根據表面裝配\n\n  ★ 簡單 3 線介面\n\n  ★ 與 TTL 相容Vcc=5V\n\n  ★ 可選工業級溫度範圍-40 +85\n\n  ★ 雙電源管用於主電源和備份電源供應\n\n       \n\n  具體參數：\n\n  DS1302即時時鐘模組參數如下：\n\n  1.PCB為單面板，尺寸：44mm*23mm*1.6mm\n\n  2.帶4個定位孔，直徑3.1mm\n\n  3.備用電池為正品天球CR2032,電壓3V，電流260mAh，非可充電電池。理論資料保持時間大於10年！\n\n  4.晶振32.768KHz，日本原裝進口晶振，匹配電容為6pF，尺寸2*6mm\n\n  5.DS1302為8腳直插國產大晶片，晶片下麵有IC座，方便更換及插拔晶片\n\n  6.模組工作電壓相容3.3V/5V，可與5V及3.3V單片機連接\n\n  7.工作溫度：0°---70°\n\n  接線方法(以提供的程式為例，可以接任意IO口，在程式中修改埠定義即可)：\n\n  VCC→+5V/3.3V\n\n  GND→GND\n\n  CLK→P02\n\n  DAT→P01\n\n  RST→P00\n\n      \n\n  資料連結：\n\n  https://box.cloud.taobao.com/file/downloadFile.htm?shareLink=58KHX2u\n\n         \n\n  溫馨提示：\n\n  1.VCC與GND千萬不要接反，以免燒壞晶片\n\n  2.51單片機P0口需要接上拉電阻，如果您的單片機沒有接上拉電阻，可以將資料線接到其它埠\n\n         \n\n  發貨清單：\n\n  1.DS1302即時時鐘模組1個(帶DS1302晶片及備用電池，發貨前已測試好功能)\n\n       \n\n  實物拍攝：","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"離島配送","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092104064","category_name":"電子零件/材料","breadcrumb":[{"id":"23336","name":"電腦、平板與周邊","url":"/tw/%E9%9B%BB%E8%85%A6%E3%80%81%E5%B9%B3%E6%9D%BF%E8%88%87%E5%91%A8%E9%82%8A-23336-category.html"},{"id":"2092072621","name":"耗材與線材","url":"/tw/%E8%80%97%E6%9D%90%E8%88%87%E7%B7%9A%E6%9D%90-2092072621-category.html"},{"id":"2092104064","name":"電子零件/材料","url":"/tw/%E9%9B%BB%E5%AD%90%E9%9B%B6%E4%BB%B6-%E6%9D%90%E6%96%99-2092104064-category.html"}],"view_count":0,"watch_count":1}