R2043T-E2-F

Real Time Clock Overview

The R2043T-E2-F is a Real Time Clock (RTC) IC from Nisshinbo Micro Devices. It features a 4-wire serial interface for clock and calendar data management. The device operates within a supply voltage range of 1.7V to 5.5V. Maximum current consumption during timekeeping is 1µA at 3V. It supports an operating temperature range of -40°C to 85°C. Available in 10-VFSOP and 10-MSOP packages, it includes alarm and leap year functionality.

Real Time Clock Feature Summary

• Integrated clock and calendar functionality with automatic leap year compensation
• Low power consumption suitable for battery-backed applications
• Supports 4-wire serial communication interface

Real Time Clock Applications

• Battery-powered consumer electronics requiring accurate timekeeping
• Industrial systems needing real-time clock synchronization
• Portable devices utilizing low-voltage power supplies

Real Time Clock Procurement Notes

Verify the specific package variant required, as the component is available in both 10-VFSOP and 10-MSOP configurations. Confirm that the 4-wire serial interface aligns with the host system's communication protocol. Ensure the operating temperature range meets the environmental requirements of the target application. Check availability status directly with authorized distributors due to potential supply chain variations.

Real Time Clock Selection Notes

Select this RTC when a low-power solution with integrated calendar logic is needed. The 1.7V minimum supply voltage allows compatibility with single-cell lithium batteries. The 4-wire interface simplifies connection compared to I2C or SPI alternatives. Consider the physical footprint constraints of VFSOP versus MSOP packages during PCB layout design.

Real Time Clock Part Context

This part belongs to the Nisshinbo Micro Devices RTC family. It provides essential timekeeping capabilities for embedded systems. The manufacturer combines analog and digital expertise in this series. The component replaces older discrete RTC solutions by integrating necessary logic into a small surface-mount package.

Real Time Clock Replacement Considerations

Direct substitutes may include other 4-wire serial RTCs from different manufacturers. Verify pinout compatibility before swapping. Ensure equivalent voltage ranges and current consumption levels are maintained. Check if the replacement supports the same alarm and leap year features.