Product Summary

The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM.

Parametrics

Absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.5V to +7.0V; (2)Operating Temperature Range (Noncondensing): Commercial: 0℃ to +70℃, Industrial: -40℃ to +85℃; (3)Storage Temperature Range: -55℃ to +125℃; (4)Soldering Temperature (DIP, leads): +260℃ for 10 seconds; (5)Soldering Temperature (surface mount): Refer to the PC/JEDEC J-STD-020 Specification.

Features

Features: (1)Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the week, and Year with Leap-Year Compensation Valid Up to 2100; (2)56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes; (3)I2C Serial Interface; (4)Programmable Square-Wave Output Signal; (5)Automatic Power-Fail Detect and Switch Circuitry; (6)Consumes Less than 500nA in Battery-Backup Mode with Oscillator Running; (7)Optional Industrial Temperature Range: -40℃ to +85℃.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1307
DS1307
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-6920: $1.34
DS1307+
DS1307+
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-1: $2.52
1-25: $1.69
25-50: $1.22
50-100: $1.21
DS1307+TR
DS1307+TR
Other

Data Sheet
Negotiable 
DS1307N
DS1307N
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-6910: $1.49
DS1307N+
DS1307N+
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-1: $2.79
1-25: $1.87
25-50: $1.36
50-100: $1.34
DS1307Z
DS1307Z
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-6910: $1.18
DS1307Z/T&R
DS1307Z/T&R
Maxim Integrated Products
Real Time Clock 64x8 Serial I2C RTC
Data Sheet
0-2500: $0.96
2500-7750: $0.96
DS1307Z/T&R/C03
DS1307Z/T&R/C03
Maxim Integrated Products
Real Time Clock
Data Sheet
Negotiable