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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.

Features

  • Ultra-low jitter performance: Achieve exceptional precision with jitter performance as low as 50fs at 312.5MHz within a wide 12kHz to 20MHz integration range in jitter attenuator mode
  • Versatile power supply options: Operate the device with ease using a single 1.8V power supply while ensuring compatibility with a 3.3V level interface at SCL/SDA pin if the VDDD33_SERIAL is 3.3V
  • DCO mode support: Leverage the benefits of the DCO mode for added flexibility and efficiency
  • Configurable startup options: Load configurations at startup effortlessly with the support of an external EEPROM, streamlining your setup process
  • Flexible communication interfaces: Choose between SPI or I2C communication protocols for seamless device integration
  • Multiple OTP configurations: Benefit from up to four OTP configurations for startup

Description

The RC223xxA (RC22308A and RC22312A) is a high-performance, small form factor, low-power clock generator, belonging to Renesas' high-performance FemtoClock™ 3 family. It supports ultra-low jitter clocks for 100G/200G/400G/800G SerDes data center equipment reference clock applications. It also comes with three Fractional Output Dividers (FOD), and it can support up to four frequency domains.

This device is factory-configurable.
Try the Custom Part Configuration Utility.

Parameters

AttributesValue
Diff. Outputs8, 12
App Jitter Compliance112G SerDes Jitter, PCIe Gen 6
Outputs (#)8, 12
Output TypeHCSL, LVDS, LVCMOS
Output Freq Range (MHz)0.001 - 1000
Input Freq (MHz)0.001 - 1000
Inputs (#)4
Input TypeCrystal, LVPECL, HCSL, LVDS, CML, LVCMOS
Output Banks (#)8, 12
Core Voltage (V)1.8V, 3.3V
Output Voltage (V)1.8
Product CategoryFemtoClock 3, Ultra-Low Jitter Clocks (<300 fs RMS), Extreme Performance Clocks (<150 fs RMS), Network Synchronization, PDH and SONET/SDH Clocks, Programmable Clocks
105°C Max. Case Temp.0
Selection Criteria<150 fs RM

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN7.0 x 7.0 x 0.9480.5
VFQFPN9.0 x 9.0 x 0.9640.5

Applications

  • Clock synthesis for 56G/112G pulse amplitude modulation (PAM4) SerDes
  • Clock synthesis for 100/200/400/800/1600 Gbps Ethernet PHY
  • Data center Top of Rack (ToR) and leaf switch
  • Ethernet switches and routers
  • Medical image system
  • Test and measurement
This device is factory-configurable.
Try the Custom Part Configuration Utility.

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