X1286A8T1

Overview

The X1286A8T1 is a Real-Time Clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It provides clock/calendar functionality 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. Key electrical characteristics include a maximum current consumption of 10µA to 20µA at 2.7V to 5V. It features time formats for HH:MM:SS in both 12-hour and 24-hour modes, and date formats for YY-MM-DD. The component is housed in an 8-SOIC package with a width of 5.30mm and is rated for operation between 0°C and 70°C.

Feature Summary

• I2C, 2-wire serial interface for communication
• Integrated alarm, leap year, monitor, and watchdog timer functions
• Supports 12/24 hour time format and YY-MM-DD date format

Applications

• Clock/calendar systems requiring low power consumption
• Data logging devices needing precise timekeeping
• Consumer electronics with real-time tracking requirements

Procurement Notes

The X1286A8T1 is listed as discontinued by the manufacturer. Verification of availability should focus on distributor stock levels or alternative sourcing channels. Buyers must confirm the specific packaging type, which is typically tape and reel, and ensure compatibility with existing design constraints due to the end-of-life status.

Selection Notes

Select this component when an I2C-compatible RTC with low power consumption is required for industrial or commercial temperature ranges. Verify that the 2.7V to 5.5V supply range matches the system design. Consider the 8-SOIC package dimensions for PCB layout. Check for suitable replacement parts if long-term supply stability is a priority.

Part Context

This part belongs to the X1286 series of real-time clocks from Renesas. It is designed for applications requiring accurate timekeeping with minimal power usage. The series typically offers standard RTC features such as alarms and calendar functions, packaged in compact surface-mount options suitable for space-constrained designs.

Replacement Considerations

As the X1286A8T1 is discontinued, verify compatible replacements from Renesas or other manufacturers offering similar I2C RTCs with comparable voltage ranges and package types.