X1205S8Z

Real Time Clock Overview

The X1205S8Z is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock and calendar functions via an I2C, 2-wire serial interface. The device operates within a supply voltage range of 2.7V to 5.5V and supports battery backup voltages from 1.8V to 5.5V. It features a time format of HH:MM:SS in 12/24-hour modes and a date format of YY-MM-DD-dd. Key electrical parameters include a maximum current consumption of 10µA to 20µA at 2.7V to 5V. The component is housed in an 8-SOIC package with a width of 3.90mm.

Real Time Clock Feature Summary

• Integrated Real-Time Clock and Calendar functionality
• I2C, 2-wire serial communication interface
• Supports alarm and leap year calculations
• Operates on 2.7V to 5.5V main supply and 1.8V to 5.5V battery backup

Real Time Clock Applications

• Systems requiring precise timekeeping and calendar tracking
• Data logging equipment needing timestamping capabilities
• Industrial control systems with RTC requirements

Real Time Clock Procurement Notes

The X1205S8Z is listed as obsolete or discontinued by the manufacturer. Availability is limited to existing stock or third-party distributors. Verification of part authenticity and condition is critical when sourcing this component. Alternative packaging options such as tape and reel may be available for compatible variants like the X1205S8ZT1.

Real Time Clock Selection Notes

Select the X1205S8Z for applications requiring a standalone RTC with I2C connectivity. Ensure the system design accommodates the 8-SOIC package dimensions. Verify that the operating temperature range of 0°C to 70°C meets the environmental requirements of the target application. Consider the X1205S8I variant if a wider industrial temperature range (-40°C to 85°C) is necessary.

Real Time Clock Part Context

The X1205S8Z belongs to the X1205 series of real-time clock ICs. It is often compared with related components such as the X1205S8ZT1, which shares identical functional specifications but differs in packaging format. The series is designed to provide low-power timekeeping solutions for embedded systems.

Real Time Clock Replacement Considerations

The X1205S8ZT1 is a direct functional equivalent with identical specifications, differing primarily in packaging type. For applications requiring extended temperature ranges, the X1205S8I serves as a suitable alternative.