REAL TIME CLOCK MODULES
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REAL TIME CLOCK MODULES
REAL TIME CLOCK MODULES
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  • Current draw: 20uA
  • Product Dimensions: 19.5mm x 17.8mm x 5.0mm
  • Product Weight: 1.4g
RM35.00
  • Raspberry Pi DS3231 foreign high precision clock module
  • Pay attention to the module Arduino motherboard can also be used
  • The module itself can be adapted to 3.3 V and 5 V system
  • No level conversion, it is super convenient
RM6.50
  • Dimensions: 16.5mm x 26.3mm x 1.6mm
  • Backup battery CR1220, voltage 3V, current 260mAh, non-rechargeable batteries. Theoretical data hold time is more than 10 years!
  • Crystal 32.768KHz, matching capacitance 6pF, size 2 * 6mm
  • DS1302 8-pin SMD homemade chips
  • Module operating voltage compatible 3.3V/5V, can be connected with 5V and 3.3V microcontroller
  • Operating temperature: 0 -70 degree
RM6.50
  • I2C serial interface
  • 5V DC supply
  • Programmable Square-Wave output signal
  • Automatic Power-Fail detect and switch circuitry
  • Consumes less than 500nA in Battery-Backup Mode with Oscillator Running
RM29.00
  • Brand new and high quality
  • DS1307 Real Time Clock developed by one of our designer
  • Fully assembled and pre-programmed with the current time
  • The DS1307 is accessed via the I2C protocol
  • Two wire I2C interface
  • DS1307 based RTC with CR2032 battery (non-rechargeable)
RM4.90
  • Size: 38mm (length) * 22mm (W) * 14mm (height)
  • Weight: 8g
  • Operating voltage: 3.3 - 5 .5 V
  • Clock chip: high-precision clock chip DS3231
RM5.50