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Product Detailed Parameters
- Description：IC RTC CLK/CALENDAR I2C 16SOIC
- Series：-
- Package：Tube
- Mfr：Renesas Electronics Corporation
- Type：Clock/Calendar
- Features：Alarm, Leap Year, Square Wave Output
- Memory Size：-
- Time Format：HH:MM:SS (12/24 hr)
- Date Format：YY-MM-DD-dd
- Interface：I2C, 2-Wire Serial
- Voltage - Supply：1.8V ~ 5.5V
- Voltage - Supply, Battery：-
- Current - Timekeeping (Max)：0.6µA @ 1.3V ~ 1.8V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
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Overview
The Renesas 1337GCSRI is a Real-Time Clock (RTC) integrated circuit featuring an I2C serial interface. It operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature conditions from -40°C to +85°C. The device provides timekeeping for seconds, minutes, hours, day, date, month, and year, including leap-year compensation valid up to the year 2100. It includes two programmable time-of-day alarms and a programmable square-wave output that defaults to 32 kHz upon power-up. Address and data are transferred via Normal and Fast mode I2C buses.
Feature Summary
- I2C Serial Interface supporting Normal and Fast modes
- Operating Voltage Range: 1.8V to 5.5V
- Industrial Temperature Range: -40°C to +85°C
- Leap-year compensation valid up to 2100
Applications
- Real-time clocking in consumer electronics
- Timekeeping modules in industrial control systems
- Data logging applications requiring accurate date and time stamps
Procurement Notes
Verify the specific package type and suffix against official Renesas documentation, as the '1337G' series encompasses multiple packages including MSOP-8, SOIC-8, QFN, and SOIC with integrated crystals. Confirm availability status directly with the manufacturer or authorized distributors, as lead times may vary based on production cycles.
Selection Notes
Select this component when a low-power RTC with I2C connectivity is required for environments operating between -40°C and +85°C. Ensure the system design accommodates the 1.8V to 5.5V supply range. Verify if an integrated crystal is needed; if so, confirm the specific sub-model variant that includes the surface-mount package with an integrated crystal, as standard variants may require external components.
Part Context
The 1337GCSRI belongs to the Renesas 1337G family of real-time clocks. This family is designed for applications needing precise timekeeping with minimal external components. The device counts seconds through years and automatically adjusts for varying month lengths and leap years.
