DS1603

Real Time Clock Overview

The DS1603 is a Real-Time Clock (RTC) integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It features a serial 2-wire I2C bus interface for communication and utilizes binary time format. The device supports calendar, clock, and elapsed time counter functions. It operates within a supply voltage range of 4.5 V to 5.5 V and is designed for through-hole installation in a standard package. The component is rated for an operating temperature range from 0°C to +70°C.

Real Time Clock Feature Summary

• Serial 2-Wire I2C Bus Interface
• Binary Time Format Support
• Calendar, Clock, and Elapsed Time Counter Functions

Real Time Clock Applications

• Real-time data logging systems requiring precise timekeeping
• Embedded devices needing calendar and clock functionality via I2C
• Elapsed time measurement applications in industrial equipment

Real Time Clock Procurement Notes

Verify the current lifecycle status before procurement, as the DS1603 is listed as discontinued or having restricted supply availability. Confirm that the required I2C address and binary format compatibility match the host system design. Ensure the through-hole packaging aligns with the PCB layout specifications. Check for RoHS compliance details if environmental regulations apply to the final assembly.

Real Time Clock Selection Notes

Select the DS1603 when a dedicated RTC with I2C connectivity is required for 5V logic systems. It is suitable for designs needing basic calendar and elapsed time tracking without complex microcontroller overhead. Consider the 0°C to +70°C commercial temperature range limits. Verify that the through-hole package fits the manufacturing process constraints compared to surface-mount alternatives.

Real Time Clock Part Context

The DS1603 belongs to the Maxim Integrated line of real-time clocks, which are widely used in embedded systems for maintaining accurate timekeeping independent of the main processor. These components typically integrate oscillators and backup power inputs to ensure continuous operation during primary power loss.