DS1307 Real-Time Clock (RTC) IC with I2C Interface
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | Real Time Clock (RTC) DS1307 IC | 18 EGP | View in store |
 Future Electronics | DS1307 PDIP-8 Real Time Calendar and Clock | 20 EGP | View in store |
 UGE | DS1307 serial real-time clock (RTC) SMD 8pin | 20 EGP | View in store |
 RAM Electronics | DS1307 - Real Time Clock IC (RTC) | 20 EGP | View in store |
Price history
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Lowest price recorded: 18 EGP
About this product
The DS1307 is a low-power real-time clock IC that keeps track of seconds, minutes, hours, date, month, year and day of week in BCD format. It communicates over I2C and has 56 bytes of battery-backed RAM, and it switches automatically to a backup battery when main power is lost. It is widely used to add timekeeping to Arduino and other microcontroller projects.
Specifications
- Interface
- I2C
- Supply voltage (VCC)
- 4.5 V to 5.5 V (5 V typical)
- Backup battery input
- V-BAT pin (3 V lithium cell typical)
- Crystal
- 32.768 kHz on X1 / X2
- On-chip RAM
- 56 bytes, battery-backed
- Package
- 8-pin PDIP / SOIC (SMD)
- Square-wave output
- SQW/OUT pin
Frequently asked questions
What is the price of DS1307 Real-Time Clock (RTC) IC with I2C Interface in Egypt?
DS1307 Real-Time Clock (RTC) IC with I2C Interface currently costs between 18 and 20 EGP across 4 offers in Egypt.
Where can I buy DS1307 Real-Time Clock (RTC) IC with I2C Interface in Egypt?
DS1307 Real-Time Clock (RTC) IC with I2C Interface is available from Makers Electronics, Future Electronics, UGE, and RAM Electronics. Compare the offers above to find the best price.
What external parts does the DS1307 need to keep time?
It needs a 32.768 kHz crystal connected across X1 and X2. A backup battery on V-BAT keeps the time running when VCC is removed. SDA and SCL also need pull-up resistors to VCC, commonly 4.7 kΩ, which many breakout boards already include.
Can the DS1307 be powered from a 3.3 V board?
The datasheet specifies a 4.5 V to 5.5 V supply, so a 3.3 V board needs a suitable regulator or a level-compatible RTC. The DS3231 is a common alternative that works at 3.3 V.
