Manufacturer Part Number
PT7C43390LEX
Manufacturer
Diodes
Introduction
The PT7C43390LEX is a high-precision clock/calendar real-time clock (RTC) component designed by Diodes, suitable for a wide range of timing and calendar applications.
Product Features and Performance
Clock/Calendar functionality: Tracks hours, minutes, seconds in 12/24 hr format
Date tracking: YY-MM-DD-dd format, including leap year compensation
Alarm feature: Enables setting alarms for specific time events
Square Wave Output: Provides a square wave output for external devices
Interface: I2C, 2-Wire Serial for easy integration with microcontrollers and processors
Low current timekeeping: 0.65µA to 0.7µA consumption at 3V to 5V
Wide voltage supply range: 1.3V to 5.5V, adaptable to various power supplies
Operating Temperature: Capable of functioning in extreme temperatures from -40°C to 85°C
Product Advantages
High precision and reliability for timekeeping and calendar functions
Flexible power supply compatibility enhances application in diverse electronic systems
Low power consumption ensures longevity in battery-operated devices
Integrated alarm and square wave output add value with minimal additional components
Broad operating temperature range suitable for challenging environmental conditions
Key Technical Parameters
Voltage Supply: 1.3V ~ 5.5V
Timekeeping Current: 0.65µA ~ 0.7µA @ 3V ~ 5V
Operating Temperature Range: -40°C ~ 85°C
Interface: I2C, 2-Wire Serial
Mounting Type: Surface Mount
Package / Case: 8-TSSOP, 8-MSOP
Quality and Safety Features
Manufactured by Diodes, a reputable manufacturer in semiconductor devices
Robust design ensuring reliable operation within specified temperature and voltage ranges
Compatibility
Compatible with a wide range of microcontrollers and processors via I2C interface
Adaptable to various power sources within specified voltage range
Application Areas
Consumer electronics (watches, clocks, electronic toys)
Industrial timing devices
Communication devices (modems, routers)
Portable medical devices for time-based functions
Automotive electronics for timing applications
Product Lifecycle
Status: Active
The PT7C43390LEX is currently in active production with no immediate discontinuation announced, ensuring availability for new designs and replacements
Several Key Reasons to Choose This Product
Highly versatile with clock/calendar, alarm, and square wave output functionalities
Low power consumption makes it ideal for battery-dependent applications
Wide operating temperature and voltage range cater to challenging environments and setups
Ease of integration with existing systems due to standard I2C communication
Robust support and reliability provided by Diodes as a manufacturer
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