Adafruit PCF8523 Real Time Clock Breakout Board

Adafruit PCF8523 Real Time Clock Breakout Board — Adafruit — 5189
Availability
In stock

Battery-backed PCF8523 real-time clock breakout with STEMMA QT/Qwiic I2C connectors and 3–5 V logic support.

Pinout

Logical pinout · physical placement not verified
ADAFRUIT PCF8523 REAL VCCSDAGNDSTEMMA QTSCLSQW
  • VCC
    Type · Power
  • GND
    Type · Ground
  • SCL
    Type · I2C
  • SDA
    Type · I2C
  • STEMMA QT
    Type · Unknown
  • SQW
    Type · Signal

RTC & timing

26 other options

DS3231/DS3232 temperature-compensated RTCs, the budget PCF8523 and DS1307, the Si5351A clock generator (8kHz–160MHz), and bare 16MHz crystals — matched to drift tolerance and supply voltage.

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