Custom 1PCS DS3231 Real Time Clock Module RTC 3.3V/5V with Battery for Raspberry Pi for arduino

We are a manufacturer of electronic components, electronic modules for a large number of products.We are the factory!With more than 10 years of PCB development experience, the product quality is good, the price is excellent.A large number of wholesale sales of global buyers, welcome to purchase. Overview: Raspberry Pi foreign highest precision clock module DS3231 Note for motherboards also use this module. Modules can adapt itself 3.3V and 5V systems without level conversion, this is a super convenient! Two. Features: The 1.-40 ° C to +85 ° C temperature range, timing accuracy kept at ± 5ppm (± 0.432 sec / day) 2 timed to provide continuous battery backup 3 low-power 4. Device package and function compatible with the DS3231 5. Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation 6 two calendar alarm 7.1Hz and 32.768kHz output 8 Reset button debounced input and output 9-speed (400kHz) I2C serial bus 10. +2.3 V to +5.5 V Supply Voltage 11 ± 3 ° C accuracy digital temperature sensor 12.-40 ° C to +85 ° C operating temperature range 13.16-pin SO (300mil) package 14 by Underwriters Laboratories (UL) certification