X1286V14I

Overview

The X1286V14I 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 for main power and 1.8V to 5.5V for battery backup. It supports time formats including HH:MM:SS:hh (12/24 hr) and date formats YY-MM-DD-dd. Key features include alarm capabilities, leap year compensation, a supervisor function, and a watchdog timer. The component is housed in a 14-TSSOP package with a width of 0.173 inches (4.40mm). Current consumption during timekeeping ranges from 10µA to 20µA at operating voltages between 2.7V and 5V.

Feature Summary

• Integrated Real Time Clock (RTC) with Clock/Calendar functionality
• I2C, 2-Wire Serial interface for communication
• Features Alarm, Leap Year, Supervisor, and Watchdog Timer
• Operating Temperature Range: -40°C to 85°C

Applications

• Systems requiring precise timekeeping and calendar tracking
• Devices utilizing I2C serial communication protocols
• Applications needing low-power RTC solutions with battery backup support

Procurement Notes

Verify the part status as Obsolete before procurement planning. Confirm RoHS compliance status, as documentation indicates non-compliance. Ensure the 14-TSSOP package dimensions match the design constraints. Check for available Tape & Reel packaging options if automated assembly is required. Validate that the 2.7V-5.5V supply range aligns with system power rails.

Selection Notes

Select this component when an I2C-based RTC with built-in supervisor and watchdog features is required. Consider the 14-TSSOP package size for PCB layout constraints. Verify that the operating temperature range of -40°C to 85°C meets environmental requirements. Ensure the system can accommodate the specified current consumption levels for both main and battery supplies.

Part Context

The X1286V14I belongs to the X1288 family of real-time clock ICs. It shares similar interface and feature sets with other members like the X1288V14I-2.7AT1, differing primarily in specific suffix designations or minor parameter variations. This part number represents a surface-mount solution designed for compact electronic applications requiring reliable timekeeping.

Replacement Considerations

Direct substitutes may include other parts from the X1288 family, such as the X1288V14I series, provided pin compatibility and electrical specifications are verified. Cross-reference with Renesas official documentation for exact functional equivalence and pin-to-pin replacement validity.