DS1307Z

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DS1307Z

IC RTC CLK/CALENDAR I2C 8SOIC

  • Manufacturer
  • Mfr. Part #DS1307Z
  • Package
  • Datasheet
  • In Stock9007

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Specifications

Part Status Obsolete
DigiKey Programmable Not Verified
Type Clock/Calendar
Features Leap Year, NVSRAM, Square Wave Output
Memory Size 56B
Time Format HH:MM:SS (12/24 hr)
Date Format YY-MM-DD-dd
Interface I2C, 2-Wire Serial
Voltage - Supply 4.5V ~ 5.5V
Voltage - Supply, Battery 2V ~ 3.5V
Current - Timekeeping (Max) 200µA @ 5V
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number DS1307

Overview

Description

The DS1307Z is a real-time clock (RTC) device primarily used in various electronic applications for timekeeping. It operates over the I2C (Inter-Integrated Circuit) bus, allowing easy integration with microcontrollers. The DS1307Z maintains accurate time and date information, including seconds, minutes, hours, day, date, month, and year, even during power outages, thanks to its battery backup feature.
Key features of the DS1307Z include:
- I2C Interface: Facilitates communication with microcontrollers.
- Timekeeping Accuracy: Keeps time with a typical accuracy of ±2 minutes per month.
- Alarm Functions: Can generate interrupts for alarms, making it suitable for time-sensitive applications.
- Low Power Consumption: Ideal for battery-operated devices.
- Backup Power Source: Operates using a lithium battery when external power is lost.
The DS1307Z is commonly used in digital clocks, embedded systems, and other applications where accurate timekeeping is essential.

Features

The DS1307Z is a real-time clock (RTC) device with the following key features:
1. Timekeeping: Maintains accurate time (hours, minutes, seconds) and date (day, month, year) tracking.
2. I2C Interface: Communicates with microcontrollers via a standard I2C interface, facilitating easy integration.
3. Battery Backup: Supports a backup battery (typically CR2032) to keep time during power outages.
4. Square Wave Output: Provides a square wave output for timing applications (1 Hz, 4 kHz, 8 kHz, 32 kHz).
5. Leap Year Compensation: Automatically accounts for leap years, ensuring accurate date tracking.
6. Low Power Consumption: Designed for low power operation, suitable for battery-powered applications.
7. 32-Bit Register: Contains a 32-bit register for storing time and date data.
8. Temperature Compensated: Ensures time accuracy across a wide temperature range.
9. Programmable Alarm: Capable of generating alarms based on time and date conditions.
The DS1307Z is widely used in embedded systems, digital clocks, and other time-sensitive applications.

Package

The DS1307Z is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. It may also be found in a 16-pin DIP (Dual In-line Package) format, depending on the manufacturer.

Pinout

The DS1307Z is a real-time clock (RTC) device from Maxim Integrated (now part of Analog Devices). It has a total of 8 pins. Here’s a brief overview of each pin's function:
1. VCC: Power supply pin (typically +5V).
2. GND: Ground pin.
3. SDA: Serial Data Line for I²C communication.
4. SCL: Serial Clock Line for I²C communication.
5. SQW/INT: Square wave output or interrupt output pin.
6. VBAT: Backup battery input to maintain timekeeping during power loss.
7. 32kHz: 32.768 kHz output for clock applications.
8. NC: No connection (not used).
The DS1307Z provides accurate timekeeping with features like an I²C interface for communication, adjustable square wave output, and a battery backup system to ensure continuous operation.

Manufacturer

The DS1307Z is manufactured by Maxim Integrated, which is a company specializing in analog and mixed-signal semiconductor products. Founded in 1983, Maxim Integrated develops a wide range of integrated circuits (ICs) used in various applications, including automotive, consumer electronics, industrial, and medical devices. The company is known for its expertise in power management, signal processing, and sensors, among other areas. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and capabilities in the semiconductor industry. The DS1307Z itself is a real-time clock (RTC) IC that provides accurate timekeeping and is often used in embedded systems and microcontroller applications.

Application

The DS1307Z is a real-time clock (RTC) integrated circuit used in various applications, including digital clocks, timers, data loggers, and microcontroller projects. It provides timekeeping functions and can be used in devices requiring accurate time tracking, such as computers, embedded systems, and alarm systems. Its ability to maintain time during power outages with a backup battery makes it ideal for applications needing continuous timekeeping.

Equivalent

Equivalent products to the DS1307Z chip include the PCF8563, MCP7940N, and DS3231. These RTC (Real-Time Clock) chips offer similar functionalities, such as timekeeping and interfacing via I2C. The DS3231, in particular, provides temperature compensation and improved accuracy over the DS1307Z. When selecting an equivalent, consider power supply requirements, features, and compatibility with your application.

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TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

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