RX8111CE BB

Real Time Clock Overview

The EPSON RX8111CE BB is a real-time clock (RTC) integrated circuit designed for embedded systems. It features an I2C bus interface and supports date formats including YY-MM-DD and time formats HH:MM:SS (24-hour). The device operates within a supply voltage range of 1.6V to 5.5V and maintains timekeeping with a backup switch function. It is housed in a 10-SMD, no-lead package with dimensions of 3.2x2.5mm. Key electrical characteristics include a maximum current consumption of 3µA at 3V during timing operation. The component functions across a temperature range of -40°C to +85°C (TA) and includes alarm capabilities and RAM.

Real Time Clock Feature Summary

• I2C Bus Interface: Standard communication protocol supporting up to 400kHz.
• Low Power Consumption: Maximum current draw of 3µA @ 3V during timing operation.
• Wide Voltage Range: Operates on main power from 1.6V to 5.5V.
• Compact Package: Available in a 10-SMD (3.2x2.5mm) surface-mount package.

Real Time Clock Applications

• Embedded systems requiring precise timekeeping.
• Portable electronic devices with battery backup requirements.
• Industrial equipment operating in wide temperature ranges.

Real Time Clock Procurement Notes

Verify the specific suffix 'BB' against official Epson documentation to confirm packaging details such as reel or cut tape quantities. Ensure compatibility with the target I2C address and voltage levels before procurement. Check for RoHS compliance status if required by project specifications.

Real Time Clock Selection Notes

Select this component when a low-power RTC with I2C interface is needed for space-constrained designs. The 10-SMD package suits surface-mount assembly processes. Verify that the 1.6V minimum operating voltage aligns with the system's power rail availability.

Real Time Clock Part Context

The RX8111CE series comprises real-time clocks with calendar functions. The 'BB' suffix typically denotes specific packaging or ordering variations within the standard RX8111CE family. Other variants like AB, B0, and A6 exist with different packaging configurations but share core functional specifications.

Real Time Clock Replacement Considerations

Direct substitutes within the same family include RX8111CE AB, RX8111CE B0, and RX8111CE A6. These parts share identical electrical and functional characteristics but may differ in shipping packaging (e.g., reel vs. tube). Verify pinout and register compatibility before substitution.