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Product Detailed Parameters
- Description：IC RTC CLK/CALENDAR I2C 8TSSOP
- Series：-
- Package：Tape & Reel (TR)
- Mfr：Renesas Electronics Corporation
- Type：Clock/Calendar
- Features：Alarm, Leap Year
- Memory Size：-
- Time Format：HH:MM:SS (12/24 hr)
- Date Format：YY-MM-DD-dd
- Interface：I2C, 2-Wire Serial
- Voltage - Supply：2.7V ~ 5.5V
- Voltage - Supply, Battery：1.8V ~ 5.5V
- Current - Timekeeping (Max)：10µA ~ 20µA @ 2.7V ~ 5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The X1226V8T1 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 supports HH:MM:SS time format in 12 or 24-hour modes and YY-MM-DD-dd date format. It operates on a supply voltage of 2.7V to 5.5V, with battery backup support from 1.8V to 5.5V. Maximum current consumption during timekeeping is 10µA to 20µA at 2.7V to 5V. The component is housed in an 8-TSSOP package with a width of 4.40mm and is rated for an operating temperature range of -40°C to 85°C.
Feature Summary
- Supports alarm functionality and leap year correction
- Features low power consumption for extended battery life
- Includes watchdog timer and voltage monitor capabilities
Applications
- Industrial control systems requiring precise timekeeping
- Consumer electronics with calendar display needs
- Data logging devices needing timestamp accuracy
Procurement Notes
Verify the obsolete status of this specific part number before procurement planning. Check for available alternatives such as the ISL12026 series if production continuity is required. Confirm package compatibility and voltage specifications against system requirements. Ensure RoHS compliance status aligns with regulatory standards for the target market.
Selection Notes
Select this component when I2C interface compatibility and surface mount packaging are required. Consider the operating temperature range for environmental suitability. Evaluate power budget constraints given the standby current specifications. Verify that the 8-TSSOP footprint matches the PCB layout design.
Part Context
This RTC belongs to the X1226 family of real-time clocks from Renesas. It shares functional similarities with other models in the series but differs in package type and specific feature sets like watchdog timers. The T1 suffix typically indicates tape and reel packaging for automated assembly processes.
Replacement Considerations
The ISL12026IBZ-T is listed as a similar replacement option for related X1226 variants. Verify pinout compatibility and feature parity before substitution.
