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For resonators, crystals etc please see the microcontroller category.

ImageNameDescriptionPriceQty 
555 Timer IC 8 pin DIP Pack of 1
555 Timer IC 8 pin DIP Pack of 1555 Timer ICs
  • Single timer
  • 4.5V to 16V Supply Voltage
  • 8 pin DIP
£0.20
556 Dual Timer IC 16 pin DIP Pack of 1
556 Dual Timer IC 16 pin DIP Pack of 1556 Timer ICs
  • Dual timer
  • 4.5V to 16V Supply Voltage
  • 16 pin DIP
£0.30
DS1307+ RTC Real Time Clock IC Perfect for Arduino and Raspberry PI - UK Seller
DS1307+ RTC Real Time Clock IC Perfect for Arduino and Raspberry PI - UK SellerDS1307+
  • Real Time Clock
  • I2C, Serial Interface
  • RTC Features:
  • 56 Byte
  • Battery Backed
  • General Purpose RAM
  • 250ns Data Setup Time
  • 100kHz Clock Frequency
  • 4.5V to 5.5V Supply Voltage
  • 0°C to +70°C
  • 8-DIP Case
  • The DS1307 Serial Real Time Clock is a Low-power, Full BCD Clock / Calendar with 56 Bytes of NV
£2.25
DS3231SN RTC Real Time Clock IC Perfect for Arduino and Raspberry PI - UK Seller
DS3231SN RTC Real Time Clock IC Perfect for Arduino and Raspberry PI - UK SellerDS3231SN IC
  • RTC, TCXO, CRYSTAL, 3.3V, 16SOIC
  • Clock IC Type: RTC
  • Supply Voltage Min: 2.3V
  • Supply Voltage Max: 5.5V
  • Digital IC Case Style: SOIC
  • No. of Pins: 16
  • Interface Type: I2C, Serial
  • Base Number: 3231
  • Clock Frequency: 32.768kHz
  • No. of Outputs: 1
  • Operating Temperature Range: -40°C to +85°C
  • RTC Features: Square-Wave Output

£2.25