RX-4045SAAAB PURE SN

Real Time Clock Overview

The RX-4045SAAAB PURE SN is a Real Time Clock (RTC) IC from the Epson RX-4045SA series, designed for precise timekeeping and calendar functions. It features an SPI serial interface and operates within a supply voltage range of 1.7V to 5.5V. The device supports date formats including YY-MM-DD-dd and time formats in both 12-hour and 24-hour modes. It is housed in a 14-SOIC package with a width of 5.00mm. The component functions reliably across an extended industrial temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Integrated SPI bus interface for efficient data communication
• Built-in crystal oscillator for stable clock generation
• Supports alarm function and periodic interrupt capabilities

Real Time Clock Applications

• Embedded systems requiring accurate time synchronization
• Industrial equipment needing reliable real-time tracking
• Consumer electronics utilizing low-power clocking solutions

Real Time Clock Procurement Notes

Verify the specific suffix 'AAB' against official Epson documentation to confirm functional parameters, as variations exist within the RX-4045SA family. Ensure compatibility with system voltage levels between 1.7V and 5.5V. Confirm package dimensions match the 14-SOIC specification. Check for RoHS3 compliance requirements if applicable to your manufacturing standards.

Real Time Clock Selection Notes

Select this component when a dedicated RTC with SPI connectivity is required instead of I2C. Consider the built-in oscillator feature which may reduce external BOM costs compared to parts requiring external crystals. Evaluate the operating temperature range against environmental conditions. Verify that the 14-SOIC footprint fits the PCB layout constraints.

Real Time Clock Part Context

This part belongs to the Epson RX-4045SA series of real-time clock modules. The series is characterized by its use of the SPI protocol for data transfer, distinguishing it from I2C-based alternatives. These components are engineered for high reliability in various electronic applications, offering integrated timing solutions without the need for complex external circuitry.

Real Time Clock Replacement Considerations

Direct substitutes within the same series include RX-4045SAAA0 PURE SN and RX-4045SAAA3 PURE SN. Verify pinout and electrical specifications before swapping, as suffix differences may indicate variations in packaging or specific operational characteristics defined by the manufacturer.