PT7C4563BZEEX

Real Time Clock Overview

The PT7C4563BZEEX is a Real-Time Clock (RTC) module manufactured by Diodes Incorporated, utilizing an I2C bus interface. It operates within a supply voltage range of 1.3V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The device features a built-in oscillator for a 32.768kHz crystal, providing timekeeping in 24-hour format with a century bit. Key functions include alarm interrupts, programmable square wave outputs at selectable frequencies (1Hz, 32Hz, 1.024kHz, 32.768kHz), and oscillator fail detection. It is housed in an 8-pin TDFN package.

Real Time Clock Feature Summary

• I2C Bus Interface: Supports standard communication protocols with SDA and SCL pins requiring external pull-up resistors.
• Time and Calendar Counters: Maintains seconds, minutes, hours, date, day of the week, month, and year in BCD format, including a century bit.
• Alarm and Interrupts: Features configurable alarm registers for minutes, hours, dates, or weekdays, triggering an active-low open-drain interrupt output.
• Programmable Square Wave Output: Provides selectable clock frequencies (1Hz, 32Hz, 1.024kHz, 32.768kHz) via the SQW pin.

Real Time Clock Applications

• Embedded systems requiring precise timekeeping and calendar functions.
• IoT devices needing low-power real-time synchronization.
• Industrial equipment operating within extended temperature ranges.
• Consumer electronics utilizing I2C-based microcontroller architectures.

Real Time Clock Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as per manufacturer specifications. Ensure packaging integrity for surface-mount assembly. Check for obsolescence notices as product lifecycle status may change. Validate electrical parameters against specific application requirements before procurement.

Real Time Clock Selection Notes

Select this component for applications requiring I2C connectivity and low-voltage operation down to 1.3V. Consider the 8-pin TDFN package for space-constrained designs. Ensure external 32.768kHz crystal selection matches load capacitance requirements. Verify that system voltage levels are compatible with the specified input/output thresholds.

Real Time Clock Part Context

The PT7C4563BZEEX belongs to the PT7C4563B series of Real-Time Clock modules. It shares functional similarities with other variants like PT7C4563CLEX but differs in package type. The 'ZE' suffix specifically denotes the 8-pin TDFN (2x3mm) package configuration. This series is designed for cost-effective timekeeping solutions in embedded environments.

Real Time Clock Replacement Considerations

Direct substitutes must match the I2C interface, voltage range, and package dimensions. Verify register compatibility if replacing with similar RTC ICs. Consider thermal characteristics and mechanical footprint when selecting alternative packages such as SOIC-8 or TSSOP-8 from the same family.