Product Summary

The DS1307Z is a serial real-time clock (RTC). It is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The DS1307Z is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307Z has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

Parametrics

DS1307Z absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.5V to +7.0V; (2)Operating Temperature Range (Noncondensing)Commercia: 0℃ to +70℃; Industria: -40℃ to +85℃; (3)Storage Temperature Range: -55℃ to +125℃; (4)Soldering Temperature (DIP, leads): +260℃ for 10 seconds.

Features

DS1307Z features: (1)Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the week, and Year with Leap-Year; (2)Compensation Valid Up to 2100; (3)56-Byte, Battery-Backed, Nonvolatile (NV) RAM for Data Storage; (4)I2C Serial Interface; (5)Programmable Square-Wave Output Signal; (6)Automatic Power-Fail Detect and Switch Circuitry; (7)Consumes Less than 500nA in Battery-Backup Mode with Oscillator Running; (8)Optional Industrial Temperature Range: -40℃ to +85℃; (9)Available in 8-Pin Plastic DIP or SO; (10)Underwriters Laboratory (UL) Recognized.

Diagrams

DS1307Z block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
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 
DS1307Z+
DS1307Z+

Maxim Integrated Products

Real Time Clock 64x8 Serial I2C RTC

Data Sheet

0-1: $2.21
1-25: $1.49
25-50: $1.08
50-100: $1.06
DS1307Z+T&R
DS1307Z+T&R

Maxim Integrated Products

Real Time Clock 64x8 Serial I2C RTC

Data Sheet

0-1980: $0.86
1980-2500: $0.86
DS1307Z+T&R/C01
DS1307Z+T&R/C01

Maxim Integrated Products

Real Time Clock 64x8 Serial I2C RTC

Data Sheet

0-1980: $0.86
1980-2500: $0.86
DS1307Z+TR
DS1307Z+TR

Other


Data Sheet

Negotiable 
DS1307ZN
DS1307ZN

Maxim Integrated Products

Real Time Clock 64x8 Serial I2C RTC

Data Sheet

0-6910: $1.49