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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Overview

Description

The RC31309-EVB VersaClock 8 (VC8) evaluation boards (EVB) are designed to support users evaluating clock generation in synthesizer mode for PCIe® Gen compliance or jitter attenuation mode.

When the EVB is connected via USB to the user’s computer running Renesas Integrated Circuit Toolbox (RICBox) software, the devices can be configured at various frequencies with best-in-class performance. The devices offer various features with 9 pairs of differential outputs. Each pair of outputs can be programmed to LVCMOS, and LP-HCSL style outputs. There are up to 6 general-purpose input/output (GPIO) and 4 general-purpose inputs (GPI) to support output enables, power down, configuration selection, and status outputs. There is a dedicated PWRGD_PDb pin. Voltage levels for VDDX, VDDR0/1, VDDA, VDDCA, VDDD, and VDDBK0-6 can be set via jumper. The EVB kit has a socket for installing an EEPROM.

Features

  • Onboard crystal or crystal overdrive (REFIN) via SMA
  • Onboard I2C and SPI communications
  • 4 GPIs and 6 GPIOs
  • GPI/GPIO LED indicator and DIP switch
  • Test points on outputs for Hi-Z probes
  • Jumper selectable voltage setting for 3.3V/2.5V/1.8V/external VDD powered by USB-C or external 5V
  • I2C or SPI monitor probe points

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