PT7C4363WEX

Real Time Clock Overview

The PT7C4363WEX is a Real-Time Clock (RTC) module manufactured by Diodes Incorporated, belonging to the PT7C4363 series. It features an I2C bus interface for communication with host processors. The device integrates timekeeping and calendar counters using BCD code format, supporting hours, minutes, seconds, days, months, years, and weekdays. It operates within a supply voltage range of 1.8V to 5.5V and includes a low backup current typical value of 500nA at VDD=3.0V and TA=25°C. The component supports high-speed mode up to 400 kHz on the I2C bus.

Real Time Clock Feature Summary

• I2C Bus Interface: Supports standard and high-speed modes (up to 400 kHz).
• BCD Counters: Includes registers for seconds, minutes, hours, day, date, month, year, and weekday.
• Low Power Consumption: Typical backup current of 500nA at 3.0V and 25°C.
• Alarm Functionality: Programmable alarm registers for minutes, hours, day/date, and weekday.

Real Time Clock Applications

• Embedded systems requiring precise timekeeping.
• Data logging devices needing calendar functions.
• Portable electronics utilizing battery backup.

Real Time Clock Procurement Notes

Verify end-of-life status before procurement as the PT7C4363 series may be subject to discontinuation. Confirm package availability in SOIC-8 format. Check for RoHS compliance documentation specific to the manufacturing lot. Ensure I2C address compatibility with the target system design.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with BCD output is required. Verify that the system voltage falls within the 1.8V to 5.5V operating range. Consider the 500nA backup current for battery life calculations. Ensure the PCB layout accommodates the external 32.768kHz crystal oscillator connections.

Real Time Clock Part Context

The PT7C4363WEX is part of the PT7C4363 family from Diodes Incorporated (formerly Pericom Semiconductor). This series provides real-time clock functionality with I2C interface capabilities. The 'WE' suffix typically denotes the SOIC-8 package and lead-free/RoHS compliant construction.

Real Time Clock Replacement Considerations

Check for direct pin-to-pin replacements within the PT7C4363 series. Verify if newer revisions of the PT7C4363 are available. Consult Diides Incorporated for recommended alternatives if the PT7C4363WEX is discontinued.