EmbeddedRelated.com
    Parts    410-218
Pmod RTCC Real-time Clock/Calendar

DGLPmod RTCC Real-time Clock/Calendar

MPN: 410-218
Digilent, Inc.
MCP79410 Real Time Clock (RTC) Clock Timing Pmod™ Platform Evaluation Expansion Board
Active134 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The Digilent Pmod RTCC is a real-time clock and calendar module based on the Microchip MCP79410. It provides accurate timekeeping with I2C connectivity and includes integrated EEPROM and SRAM for non-volatile storage and temporary data buffering.

Why Choose This Part

This module features a built-in coin cell holder to maintain timekeeping even during primary power loss. It combines a 128-byte EEPROM and 64 bytes of SRAM in a single Pmod-compatible package, reducing component count for simple data logging applications.

Applications

System Timekeeping
Maintaining accurate time and date in embedded systems that lack an internal RTC or require higher precision.
Data Logging
Providing precise timestamps for sensor data recorded to SD cards or external flash memory.
Event Scheduling
Using the two programmable alarms to trigger system wake-up or execute periodic maintenance tasks via the multi-function pin.

Key Specifications

Type Clock Timing
Contents Board(s)
Function Real Time Clock (RTC)
Platform Pmod
Utilized IC / Part MCP79410

Getting Started

Connect the module to any FPGA or microcontroller host board using a standard 6-pin Pmod header. Communicate with the MCP79410 over I2C at addresses 0x6F for the RTC/SRAM and 0x57 for the EEPROM. Use the provided Digilent IP cores for Vivado or standard I2C libraries in Arduino and MicroPython environments.