Professional IC Distribution & Technical Solutions

Part Number: R2561D

Manufacturer: Renesas

Specifications:

• Type: Real-Time Clock (RTC) IC with I²C Interface
• Supply Voltage Range: 1.6V to 5.5V
• Low Power Consumption:
• 0.35µA (Typ.) at 3V (Timekeeping mode)
• Clock Accuracy: ±3ppm (at 25°C)
• Operating Temperature Range: -40°C to +85°C
• Timekeeping Functions: Seconds, minutes, hours, day, date, month, year (with leap year compensation up to 2099)
• Alarm Function: Single or daily alarm
• Interface: I²C (400kHz max.)
• Oscillator: Built-in crystal oscillator (32.768kHz)
• Package: 8-pin SOP (Small Outline Package)

Descriptions:

The R2561D is a low-power real-time clock IC designed for battery-backed applications. It provides accurate timekeeping with minimal power consumption, making it suitable for portable and embedded systems. The I²C interface allows easy integration with microcontrollers.

Features:

• Wide Voltage Range: Supports operation from 1.6V to 5.5V.
• Ultra-Low Power Consumption: Ideal for battery-powered devices.
• High Accuracy: ±3ppm (at 25°C).
• Automatic Leap Year Adjustment: Valid up to 2099.
• Programmable Alarm: Configurable for single or recurring alarms.
• Built-in Oscillator: No external components required for timekeeping.
• I²C Bus Interface: Compatible with standard microcontrollers.
• Tamper Detection: Supports timestamp recording for power-on/off events.

This information is based on Renesas' official datasheet for the R2561D. For detailed specifications, refer to the manufacturer's documentation.