PCF8563TS/5,118

Real Time Clock Overview

The PCF8563TS/5,118 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. It provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal. The device features a 400 kHz two-wire I²C-bus interface operating at VDD = 1.8 V to 5.5 V. Key specifications include a typical backup current of 0.25 μA at VDD = 3.0 V and Tamb = 25 °C. It includes programmable clock outputs (32.768 kHz, 1.024 kHz, 32 Hz, 1 Hz), alarm and timer functions, an integrated oscillator capacitor, and an internal Power-On Reset (POR).

Real Time Clock Feature Summary

• Provides complete timekeeping (year, month, day, weekday, hours, minutes, seconds) with a century flag.
• Low backup current: typical 0.25 μA at VDD = 3.0 V and Tamb = 25 °C.
• 400 kHz two-wire I²C-bus interface compatible with VDD = 1.8 V to 5.5 V.
• Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, 1 Hz).

Real Time Clock Applications

• Mobile telephones
• Portable instruments
• Electronic metering
• Battery-powered products

Real Time Clock Procurement Notes

Verify the ordering suffix ',118' corresponds to the TSSOP8 package variant as specified in the NXP data sheet. Confirm that the component meets RoHS compliance requirements for the specific manufacturing batch. Ensure the I²C bus voltage levels match the system's VDD range of 1.8 V to 5.5 V during integration.

Real Time Clock Selection Notes

Select this part for applications requiring low power consumption and precise timekeeping via I²C. The TSSOP8 package is suitable for surface-mount assembly. Consider the integrated oscillator capacitor if board space is limited. Verify that the supply voltage remains within the 1.0 V to 5.5 V operating range to ensure correct functionality.

Real Time Clock Part Context

The PCF8563TS/5,118 belongs to the PCF8563 family of real-time clocks manufactured by NXP Semiconductors. It is designed as a CMOS RTC and calendar optimized for low power consumption. The 'TS' designation indicates the TSSOP8 package type, while '/5,118' specifies the packing method and variant details according to NXP ordering codes.

Real Time Clock Replacement Considerations

The datasheet notes that the PCF8563 is not recommended for new designs and suggests the PCF85063ATL as a replacement part. Engineers should evaluate the PCF85063ATL for future projects to ensure long-term availability and updated feature sets.