RTC-7301DG:B ROHS

Real Time Clock Overview

The RTC-7301DG:B ROHS is a 4-bit real-time clock module manufactured by Epson. It operates within a voltage range of 2.4 to 5.5 volts and maintains time accuracy with a frequency tolerance of plus or minus 23 parts per million. The device supports a temperature range from -40 degrees Celsius to typical operating limits. It provides time format output in hours, minutes, and seconds using a 24-hour cycle. The component is housed in an 18-pin dual in-line package (DIP) with a standard 0.300-inch (7.62mm) width.

Real Time Clock Feature Summary

• Integrated alarm functionality for scheduled event triggering
• Automatic leap year compensation for calendar accuracy
• Parallel interface communication via 18-pin DIP package

Real Time Clock Applications

• General-purpose digital clocks requiring precise timekeeping
• Calendar systems needing automatic date adjustments
• Embedded devices utilizing parallel interface connections

Real Time Clock Procurement Notes

Verify the exact suffix designation when sourcing replacements, as variations such as :BS may exist. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as documentation indicates no specific RoHS information is available for this obsolete part. Ensure the 18-DIP package dimensions match the target PCB footprint before integration.

Real Time Clock Selection Notes

This component is suitable for designs requiring a dedicated hardware real-time clock with parallel data access. Consider the 2.4V to 5.5V operating range for power supply compatibility. The 23ppm accuracy is adequate for non-critical timing applications. Evaluate the availability of substitutes due to the obsolete lifecycle status of the original part number.

Real Time Clock Part Context

The RTC-7301DG series belongs to Epson's line of 4-bit real-time clock modules. These components are designed to provide continuous time and date information without complex microcontroller intervention. The specific model utilizes a parallel interface, distinguishing it from serial I2C or SPI-based alternatives in the broader market.

Real Time Clock Replacement Considerations

RTC-7301DG:BS ROHS is listed as a similar available substitute. Verify pinout and electrical specifications against the original datasheet to ensure functional equivalence before adoption.