PT7C4311AWEX

Real Time Clock Overview

The PT7C4311AWEX is a Real-Time Clock (RTC) integrated circuit manufactured by Diodes Incorporated. It features an I2C and 2-wire serial bus interface for communication. The device supports date formats of YY-MM-DD-day-of-week and time formats in both 12-hour and 24-hour modes (HH:MM:SS). It operates within a supply voltage range of 1.2 V to 5.5 V and functions at temperatures from -40°C to +85°C. Key specifications include a maximum clock current of 70µA at 1.5V–5.5V, 56 bytes of storage capacity, and support for leap years and Y2K compliance. The component is housed in an 8-SOIC package with a width of 3.90mm.

Real Time Clock Feature Summary

• I2C and 2-wire serial bus interface
• Date format: YY-MM-DD-dd; Time format: HH:MM:SS (12/24 hr)
• Supply voltage: 1.2 V to 5.5 V
• Operating temperature: -40°C to +85°C

Real Time Clock Applications

• Clock/calendar systems requiring low power consumption
• Portable electronic devices utilizing battery backup
• Industrial equipment needing precise timekeeping across wide temperature ranges

Real Time Clock Procurement Notes

Verify the specific ordering suffix 'AWEX' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status through the latest product documentation. Check for obsolescence notices or PCN updates prior to finalizing procurement plans.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with a wide input voltage range (down to 1.2V) is required. Ensure the system design accommodates the 8-SOIC package dimensions. Verify that the 56-byte storage capacity meets the application's data logging needs. Confirm compatibility with the target microcontroller's I2C protocol implementation.

Real Time Clock Part Context

The PT7C4311 series belongs to Diodes Incorporated's portfolio of real-time clock ICs designed for general-purpose timekeeping applications. This specific part variant utilizes the SOIC-8 package. It is part of a broader family of clock and timer ICs offering various interface options and packaging styles for different form factor constraints.

Real Time Clock Replacement Considerations

Consult the manufacturer's cross-reference guide for verified pin-to-pin compatible alternatives. Ensure any substitute maintains I2C compatibility and similar voltage/temperature operating ranges.