RTC Module - Super Capacitor

Discontinued super-capacitor-backed real-time clock module designed for Raspberry Pi but also compatible with Arduino. Consider the Raspberry Pi RTC Expansion Module v1.1 as a replacement.

SCL1
I2C clock
Type · signal
SDA2
I2C data
Type · signal
VCC3
supply
Type · power
GND4
ground
Type · power

Pin	Position	Type	Function	Voltage

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.

View all 26

SparkFun DeadOn RTC Breakout - DS3234 visual preview

Related groups

4 groups

LED pixels

WS2812/SK6812 NeoPixel strips, rings and Jewels, APA102 DotStar pixels, and plain analog RGB strips — each matched to its protocol and host, not just its connector.

Components · Addressable LEDs · 176 parts

Bare ICs

74HC logic gates, MCP3008/MCP23017 ADCs and expanders, 24LC256 EEPROM, 4N25-series optocouplers and ULN2803A drivers — bare DIP chips with no breakout-board conveniences like pull-ups or level shifting.

Components · Integrated circuits · 68 parts

Converters

ADS1115/MCP3421 ADCs, MCP4725 and GP8413 DACs, CP2102 USB-UART boards, and I2C plumbing like the LTC4316 address shifter — matched to bus, resolution and signal range.

Components · Interface converters · 115 parts