RX-8581NB:B3 PURE SN

Real Time Clock Overview

The RX-8581NB:B3 PURE SN is a Real Time Clock (RTC) integrated circuit manufactured by Epson. It features an I2C, 2-Wire Serial interface for clock and calendar data communication. The component is housed in a 22-SMD package with 20 leads and flat leads. This device provides precise timekeeping capabilities suitable for embedded systems requiring accurate date and time tracking via standard serial protocols.

Real Time Clock Feature Summary

• Integrates real-time clock and calendar functionality within a single IC
• Utilizes I2C 2-Wire Serial interface for digital data communication
• Designed for compact surface-mount applications with flat lead configuration

Real Time Clock Applications

• Embedded systems requiring precise timekeeping
• Data logging equipment needing accurate timestamps
• Consumer electronics with calendar functions

Real Time Clock Procurement Notes

Verify the current manufacturing status of this specific part number before procurement planning. Distributor listings indicate that this product may be obsolete or no longer manufactured by Epson. Confirm availability through official channels or authorized distributors to ensure supply chain continuity. Check for valid RoHS compliance documentation if environmental regulations apply to your project requirements.

Real Time Clock Selection Notes

Select this component when a dedicated RTC with I2C interface is required for space-constrained designs. The 22-SMD package with flat leads offers a specific form factor suitable for certain PCB layouts. Ensure the host microcontroller supports the necessary I2C protocol for communication. Consider the availability status carefully as end-of-life products may limit long-term production viability.

Real Time Clock Part Context

This part belongs to Epson's family of timing devices, specifically categorized under Real Time Clocks. It is designed to provide reliable clock and calendar operations for various electronic applications. The model designation includes specific suffixes indicating package type and material composition, distinguishing it from other variants in the RX series lineup.

Real Time Clock Replacement Considerations

Distributor sources suggest viewing alternative package types or similar products due to potential obsolescence. Consult Epson's official documentation for recommended replacement parts or updated models within the same functional category to ensure compatibility and continued support.