V3020TP8A+

Real Time Clock Overview

The V3020TP8A+ is an ultra-low power CMOS real-time clock (RTC) manufactured by EM Microelectronic. It operates within a supply voltage range of 1.2V to 5.5V, with typical standby current of 390 nA at 3.0V. The device provides seconds, minutes, hours, day of month, month, year, weekday, and week number in BCD format, including leap year correction. It supports Intel and Motorola bus timing or a conventional 3-wire serial interface. The component is housed in an 8-pin TSSOP package and functions across a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Ultra-low power consumption: typically 390 nA at 3.0V
• Wide operating voltage range from 1.2V to 5.5V
• Compatible with Intel (RD/WR pulse) and Motorola (Advanced R/W) bus interfaces
• Includes time set lock mode to prevent unauthorized setting

Real Time Clock Applications

• Utility meters
• Battery operated and portable equipment
• Consumer electronics
• White/brown goods
• Automotive systems

Real Time Clock Procurement Notes

Verify the ordering suffix 'TP8A+' corresponds to the 8-pin TSSOP package in stick delivery form. Confirm the standard temperature range (-40°C to +85°C) meets application requirements; extended range variants use different suffixes. Ensure compatibility with existing PCB footprint for TSSOP-8 components during procurement planning.

Real Time Clock Selection Notes

Select this part for applications requiring low standby current and flexible bus interface options. The V3020TP8A+ is pin-compatible with the V3021. Consider the 50 ns access time and lack of busy states for system timing constraints. Verify that the external crystal load capacitance matches the design specifications for optimal frequency stability.

Real Time Clock Part Context

The V3020 series includes variants such as V3020SO8A+ (SOIC package) and V3020XSO8A+ (extended temperature). The TP8A+ suffix specifically denotes the TSSOP package option. All variants share the same core functionality but differ in physical packaging and thermal operating limits.

Real Time Clock Replacement Considerations

The datasheet notes pin compatibility with the V3021. No other specific substitute part numbers are documented in the provided source material.