DS1302Z+T&R

Real Time Clocks Analog Devices, Inc. DS1302Z+T&R Overview

The DS1302Z+T&R from Analog Devices, Inc. is a robust real-time clock (RTC) module designed for a broad range of applications where accurate timekeeping is paramount. This IC integrates a real-time clock/calendar and 31 bytes of static RAM, communicating with a microprocessor via a simple serial interface. The device operates on a very low power consumption, drawing less than 300nA in battery-backup mode with an oscillator running. This ensures prolonged battery life and stable operation across various temperature ranges, making the DS1302Z+T&R an ideal choice for time-sensitive applications in commercial and industrial environments. Its packaging in an 8-SOIC format allows for compact board designs and ease of integration into existing systems.

DS1302Z+T&R Features

• Real-time clock counts seconds, minutes, hours, date, month, day of the week, and year, with leap-year compensation up to year 2100.
• Serial interface for minimal pin usage on host controllers.
• Low power operation – less than 300nA in battery-backup mode with oscillator running.
• Automatic power-fail detect and switch circuitry, ensuring uninterrupted timekeeping.
• Programmable trickle charger option for VCC1 supply.
• Available in a compact 8-SOIC package, suitable for space-constrained applications.

DS1302Z+T&R Applications

• Embedded Systems: Integrates seamlessly to provide real-time clock functionality, ensuring system and data log accuracy.
• Consumer Electronics: Used in devices like digital cameras, radios, and smart TVs to manage system time for better user experience.
• Office Electronics: Essential for time-stamping in devices such as printers and fax machines, aiding in document management and organization.
• Portable Devices: Helps maintain clock accuracy and device settings in products like handheld GPS and portable media players.
• Healthcare Devices: Reliable timekeeping for medical devices such as blood glucose monitors and patient monitoring systems to ensure precise timing of readings and records.
• Industrial Applications: Provides the time base necessary for time-sensitive control systems, such as those in automated manufacturing lines.