HLF1307 – I²C Real-Time Clock Chip (SOP8) Real-Time Clock with I²C Interface | 4.5 V–5.5 V | <1 µA | –20 °C to +85 °C | Surface-Mount Package

The HLF1307 (SOP8) is a high-precision real-time clock (RTC) IC featuring a serial I²C interface for timekeeping and calendar management. It maintains seconds, minutes, hours, day, date, month, and year information with automatic leap-year correction. Its extremely low power consumption (<1 µA) makes it ideal for backup battery applications.

Key Features:

• Function: I²C Real-Time Clock (RTC)

• Operating Voltage: 4.5 V – 5.5 V

• Supply Current: <1 µA (typical)

• Operating Temperature: –20 °C to +85 °C

• Package Type: SOP8 (Small Outline Package)

• Mounting Type: Surface-Mount

• Integrated 32.768 kHz Crystal Oscillator Interface

• I²C-Compatible Serial Bus

• Automatic Leap Year Compensation

• Low Standby Current for Battery Backup

• Time and Calendar Functions Retained During Power Loss

Applications:

• Real-Time Clock Modules

• Embedded Systems and Microcontroller Boards

• Consumer Electronics

• Smart Appliances

• Battery-Backup Timekeeping Systems