描述
Grove – High Precision RTC 高精確時鐘模組
Grove High Precision RTC 高精度 RTC 是PHILIPS PCF85063TP，它是一款針對低功耗進行優化的CMOS 晶片，在特定環境下典型電流可低於1.2uA。所有地址和數據通過雙線雙向I2C總線串行傳輸，最高速度為400kbit / s。偏移寄存器允許微調時鐘，寄存器地址在每次讀取或寫入數據字節後自動遞增。
Grove – 高精度RTC可能是迄今為止您可以獲得的最精確和最低功耗的RTC，如果您的應用需要高精度時序提供，請不要猶豫，獲得一個。
特徵
- 提供基於32.768 kHz石英晶體的年，月，日，星期，小時，分鐘和秒鐘
- 時鐘工作電壓：0.9 V至5.5 V
- 低電流：VDD = 3.3 V和Tamb = 25°C時典型值小於1.2μA
- 高達400 kHz的雙線I²C總線接口（在VDD = 1.8 V至5.5 V時）
- 外圍設備的可編程時鐘輸出（32.768 kHz，16.384 kHz，8.192 kHz，4.096 kHz，2.048 kHz，1.024 kHz和1 Hz）
- CL = 7 pF或CL = 12.5 pF的可選集成振盪器負載電容
- 分鐘和半分鐘中斷
- 內部上電複位（POR）
- 用於頻率調整的可編程偏移寄存器
- 兼容平台：Arduino，BeagleBone Green，BeagleBone Green Wireless等
原廠技術文件與範例說明
Grove – High Precision RTC
According to the name, it is easy to know that the Grove – High Precision RTC is a more accurate real-time-clock comparing to Grove – RTC with the regular clock chip DS1307. The heart of Grove – High Precision RTC is PHILIPS PCF85063TP, which is a CMOS chip that optimized for low power consumption, the typical current can be less than 1.2uA at certain environment. All addresses and data are transferred serially via the two-line bidirectional I2C bus, of which the maximum speed is 400kbit/s. An offset register allows fine-tuning of the clock, and the register address is incremented automatically after each read or written data byte. The Grove – High Precision RTC might one the most precise and low consumption RTC you can get so far, If your application requires high precision timing providing, please don’t hesitate to get one.
Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
- Clock operating voltage: 0.9 V to 5.5 V
- Low current: typical less than 1.2 μA at VDD = 3.3 V and Tamb = 25 °C
- Up to 400 kHz two-line I²C-bus interface (at VDD = 1.8 V to 5.5 V)
- Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
- Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
- Minute and half minute interrupt
- Internal Power-On Reset (POR)
- Programmable offset register for frequency adjustment
- Compatible platform：Arduino, BeagleBone Green, BeagleBone Green Wireless etc.
Documents
- For libraries and documents, please visit our Wikipage.
Technical Details
| Dimensions | 140mm x 85mm x 10mm |
| Weight | G.W 10.27g N.W 9.5g |
| Battery | Exclude |
