EM3028V3TP14A

Real Time Clock Overview

The EM3028V3TP14A is an extreme low power real-time clock (RTC) utilizing in-house analog low power technology. It achieves a typical current consumption of 40nA at 3V while running on a standard 32,768 Hz tuning fork crystal. The device features a 32-bit UNIX time counter, programmable counters, alarms, and selectable interrupt functions. It includes 43 bytes of non-volatile user EEPROM and 2 bytes of user RAM, with configuration settings stored in EEPROM mirrored in RAM. Communication is handled via a 400 kHz I2C interface. The component operates within a wide voltage range of 1.2 V to 5.5 V and supports automatic backup switchover and trickle charging capabilities.

Real Time Clock Feature Summary

• Ultra-low power consumption of typically 40 nA @ 3 V
• Wide operating voltage range from 1.2 V to 5.5 V
• Built-in 32,768 Hz tuning fork crystal oscillator
• Time accuracy calibratable to ±1 ppm @ 25°C
• Non-volatile configuration with 43 bytes user EEPROM and 2 bytes user RAM

Real Time Clock Applications

• IoT devices
• Wearable systems
• Multi-Solar cell platforms
• Beacons and wireless sensor networks
• Industrial and environmental monitoring
• Battery operated platforms

Real Time Clock Procurement Notes

Verify the specific suffix 'V3TP' against official documentation to confirm package type and compliance status. Ensure the ordering part number matches the required TSSOP14 plastic package variant. Confirm RoHS compliance and Pb-free status as specified in the manufacturer's datasheet before procurement.

Real Time Clock Selection Notes

Select this component for applications requiring minimal standby current and extended battery life. The built-in crystal eliminates external oscillator requirements. Consider the 400 kHz I2C speed and available memory size for system integration. Verify that the operating temperature range and voltage requirements align with the target application environment.

Real Time Clock Part Context

The EM3028 series includes variants such as the EM3028-C7 module, which integrates the RTC IC with a factory-calibrated 32 kHz crystal in a hermetically sealed C7 SMD package. The EM3028V3TP14A specifically denotes the TSSOP14 plastic package version. This family is designed for cost-effective backup supply solutions using MLCC capacitors.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate alternatives based on matching pinout, I2C compatibility, and ultra-low power specifications if direct replacement is necessary.

Real Time Clock FAQ

What is the typical current consumption of the EM3028?

The typical current consumption is 40 nA at 3 V while running on a standard 32,768 Hz tuning fork crystal.

Does the EM3028 support automatic backup switchover?

Yes, the device provides an automatic backup switchover function along with a trickle charger capability.

What is the maximum I2C bus speed supported?

The EM3028 supports an I2C-bus interface with a maximum speed of 400 kHz.