RTC-8564JE:B3:ROHS

Real Time Clock Overview

The EPSON RTC-8564JE:B3:ROHS is a Real-Time Clock (RTC) integrated circuit designed for precise timekeeping and calendar functions. It features an I2C bus interface for communication with host microcontrollers. The device operates within a supply voltage range of 1.8V to 5.5V and supports a BCD format for date (YY-MM-DD-dd) and time (HH:MM:SS, 24-hour). Key functional characteristics include alarm capabilities and leap year compensation. The component is housed in a 12-TFSOJ package with dimensions of 0.094 inches (2.40mm) width, suitable for surface mount applications across a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• I2C Bus Interface: Utilizes a 2-wire serial interface for data exchange.
• Calendar Functionality: Supports BCD date and time formats with automatic leap year adjustment.
• Low Power Consumption: Typical current consumption ranges from 0.65µA to 0.8µA at 2V to 5V.
• Package Type: Available in a 12-VSOJ (12-TFSOJ) surface-mount package.

Real Time Clock Applications

• Data logging systems requiring accurate timestamping.
• Consumer electronics with real-time clock requirements.
• Industrial control equipment needing time synchronization.

Real Time Clock Procurement Notes

Verify the specific suffix 'B3:ROHS' against the manufacturer's latest documentation to confirm compliance status and availability. Check for End-of-Life (EOL) notices or Product Change Notifications (PCN) as this series may have superseded models. Confirm pin compatibility if replacing existing designs.

Real Time Clock Selection Notes

Select this component when an I2C-connected RTC with a 12-pin VSOJ footprint is required. Ensure the system voltage falls within the 1.8V to 5.5V operating range. Consider the 0.65µA to 0.8µA standby current for battery-backed applications. Verify that the 12-TFSOJ package dimensions fit the PCB layout constraints.

Real Time Clock Part Context

This part belongs to the RX-8564LC/RX-8564JE series of real-time clocks from Epson. These devices are widely used in applications requiring low-power, accurate timekeeping via standard I2C interfaces. The JE variant typically denotes specific packaging or regional compliance variations within the broader RX-8564 family.

Real Time Clock Replacement Considerations

The RX8130CE B6 is listed as a substitute by distributors. Verify electrical compatibility and pinout alignment before replacement. Check for any functional differences in register maps or power management features between the legacy RTC-8564JE and newer alternatives.