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Product Detailed Parameters
- Description：IC RTC CLK/CALENDAR I2C 14TSSOP
- Series：-
- Package：Tube
- Mfr：Renesas Electronics Corporation
- Type：Clock/Calendar
- Features：Alarm, Leap Year, Supervisor, Watchdog Timer
- Memory Size：-
- Time Format：HH:MM:SS:hh (12/24 hr)
- Date Format：YY-MM-DD-dd
- Interface：I2C, 2-Wire Serial
- Voltage - Supply：4.5V ~ 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：14-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：14-TSSOP
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Overview
The X1288V14 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 supports voltage supplies of 2.7V to 5.5V and battery voltages from 1.8V to 5.5V. Timekeeping current consumption ranges from 10µA to 20µA at 2.7V to 5V. It features alarm capabilities, leap year compensation, a supervisor function, and a watchdog timer. The component is available in a 14-TSSOP package with a width of 4.40mm.
Feature Summary
- I2C 2-Wire Serial Interface for communication
- Integrated Alarm, Leap Year, Supervisor, and Watchdog Timer functions
- Supports HH:MM:SS:hh time format (12/24 hr) and YY-MM-DD-dd date format
- Surface Mount 14-TSSOP Package
Applications
- Clock/Calendar systems requiring low power consumption
- Industrial equipment needing watchdog timer supervision
- Consumer electronics utilizing I2C connectivity
Procurement Notes
Verify the specific suffix (e.g., V14I, V14Z) as it determines operating temperature range and RoHS compliance status. Confirm product status, as variants may be obsolete. Check datasheets for exact electrical parameters corresponding to the full part number before procurement.
Selection Notes
Select based on required operating temperature (-40°C to 85°C or 0°C to 70°C) and supply voltage compatibility (2.7V-5.5V). Ensure the 14-TSSOP package fits the PCB layout constraints. Verify if EEPROM or SRAM storage is needed, as some variants include these while others do not.
Part Context
This component belongs to the X1288 family of RTC ICs. Variants such as X1288V14I and X1288V14Z share core functionalities but differ in environmental ratings and manufacturing origins (Renesas vs. Intersil). The base model X1288 defines the fundamental RTC architecture.
Replacement Considerations
Publicly confirmed substitutes are not explicitly listed for the generic X1288V14 designation. Specific suffixes like X1228V14IZ-2.7A list BU9873NUX-TTR as a similar replacement. Verify pinout and feature parity with potential alternatives.
