DS1306.pdf 查询DS1306_05供应商 DS1306 Serial Alarm Real-Time Clock www.maxim-ic.com FEATURES PIN CONFIGURATIONS § Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Date of the Month, Month, VCC2 1 20 VCC1 Day of the Week, and Year with Leap-Year VBAT 2 19 N.C. Compensation Valid Up to 2100 X1 3 18 32kHz § 96-Byte, Battery-Backed NV RAM for Data N.C. 4 17 VCCIF ……