Overview
Description
The RC21xxxB (RC21012B and RC21008B) is a member of Renesas's VersaClock® 7 programmable clock generator family. It is intended for high-performance computers, data communications, and industrial applications, designed to be placed immediately adjacent to a PHY, switch, ASIC or FPGA that requires several reference clocks with jitter performance 150fs typical RMS.
Up to 27 configurations reusable across multiple designs may be stored in on-chip One-Time Programmable (OTP) memory or external I2C EEPROM. Redundant input is available for backup and used as a reference clock where needed.
Features
- 1.8V/2.5V/3.3V flexible power rails
- Typical 150fs RMS 12kHz - 20MHz phase jitter
- 5/8/12 outputs with integrated crystal options
- 1kHz to 650MHz LVDS/LP-HCSL outputs
- 1kHz to 200MHz LVCMOS outputs
- Programmable hardware configuration select-pins
- PCIe Gen 5/6/7 ready
- Space saving packages 4mm x 4mm, 5mm x 5mm, 6mm x 6mm
- Integrated crystal option for space saving and BOM optimization
Comparison
Applications
Design & Development
Software & Tools
Software & Tools
Software title
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Software type
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Company
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Renesas IC Toolbox (RICBox) The Renesas IC Toolbox (RICBox) software platform enables customers to configure Renesas devices on evaluation kits when attached to the computer running the software.
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Software Package | Renesas |
1 item
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Boards & Kits
Evaluation Kit for VersaClock 7 Programmable Clock
The RC21008A Evaluation Board (EVB) is designed to support users evaluating the RC21008A using clock generation in synthesizer mode for PCIe Gen 1-6 compliance. When the EVB is connected via USB to the user’s computer running Renesas Integrated Circuit Toolbox (RICBox™) Software, the RC21008 can...
Test this Board Remotely
Evaluation Kit for VersaClock 7 Programmable Clock
The RC21012A Evaluation Board (EVB) is designed to support users evaluating the RC21012A using clock generation in synthesizer mode for PCIe Gen 1-6 compliance. When the EVB is connected via USB to the user’s computer running Renesas Integrated Circuit Toolbox (RICBox™) Software, the RC21012A...
Programming Boards for VersaClock 7 Programmable Clock
The VersaClock® 7 programmer board is made to ease the programming of RC21008 and RC31008 blank devices. With the onboard USB interface, RICBox™ Graphical User Interface (GUI) can be used to communicate with the blank device in the socket for configuration and programming.
Programming Boards for VersaClock 7 Programmable Clock
The VersaClock® 7 programmer board is made to ease the programming of RC21012 and RC31012 blank devices. With the on-board USB interface, RICBox™ Graphical User Interface (GUI) can be used to communicate with the blank device in the socket for configuration and programming.
Renesas Timing Product Demo Kit
RCTIMING-DEMO is a Renesas products combination kit. The kit includes a Renesas RL78 MCU, DA14531MOD, Linear Regulators (LDO), RTC (1338-31DVG) and programmable clock generator VersaClock 7 (VC7) to implement a demo kit to support programming clock generator through laptop or smartphone and...
Vehicle Computer Generation 4
The VC4 is based on a complete Renesas chipset. The centerpiece is the R-Car S4 with 8x Cortex®A55 cores, 1x Cortex® R52 core 2x RH850 G4MH delivering up to 27K DMIPS application performance plus >5.3K DMIPS lock step real-time performance. It incorporates an 8MB SRAM to execute code on the...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Product Options
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Videos & Training
Learn more about how to configure the VersaClock®7 evaluation board using the supporting RICBox software. VersaClock®7 devices achieve any frequency-in, any frequency-out for high speed SerDes used in switches routers, accelerator cards, and server applications.