RTC USB Evaluation System

Real Time Clock USB Evaluation System


This evaluation system is a hardware and software platform for testing Renesas Real Time Clock (RTC) devices, and the system requires only a PC for the controller and power functions. Renesas offers a large portfolio of RTC devices, with features including a crystal oscillator, clock and date counters, auto switch-over to battery backup, voltage monitoring with low voltage reset, a watchdog timer, and alarms.

The evaluation system enables users to test all of these functions, and to evaluate device performance criteria, such as long-term clock accuracy. Hardware options, such as battery and crystal types, can also be tested. The software sets up easily, and enables evaluation of all major RTC functions. The hardware's two-piece construction - utilizing a motherboard and a daughterboard - allows the evaluation of multiple RTC products simply by switching out small daughterboards.

Renesas Real Time Clock (RTC) products include a low cost set of products that strike a balance of features and performance for a wide variety of applications. Formerly the devices in the RTC product line used EEPROM cells for registers and general purpose memory. The new devices use battery-backed SRAM for all memory which results in a lower cost, yet very reliable, RTC device.

Key Features

  • Evaluates of all major RTC functions Evaluates device performance criteria for long-term clock accuracy
  • Features Renesas RTC products including
    • Crystal oscillator
    • Clock and date counters
    • Auto switch-over to battery backup
    • Voltage monitoring with low voltage reset
    • Watchdog timer
    • Alarms
  • Hardware options for battery and crystal types
  • Easy to use software set up
  • Motherboard / Daughterboard configuration allows the evaluation of multiple RTCs


  • Utility Meters
  • HVAC Equipment
  • Audio/Video Components
  • Set-Top Box/Television
  • Modems
  • Network Routers, Hubs, Switches, Bridges
  • Cellular Infrastructure Equipment
  • Fixed Broadband Wireless Equipment
  • Pagers/PDA
  • Point Of Sale Equipment
  • Test Meters/Fixtures
  • Office Automation (Copiers, Fax)
  • Home Appliances
  • Computer Products
  • Other Industrial/Medical/Automotive

RTC USB Evaluation System Motherboard

RTC USB Evaluation System Motherboard

RTC USB Evaluation System Daughterboard

RTC USB Evaluation System Daughterboard

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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.