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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

  • 3.125 MHz to 900 MHz synthesized clock output signal
  • Differential LVPECL output
  • LVCMOS compatible control inputs
  • On-chip crystal oscillator for reference frequency generation
  • Alternative LVCMOS compatible reference input
  • 3.3 V power supply
  • Fully integrated PLL
  • Minimal frequency overshoot
  • Serial 3-wire programming interface
  • Parallel programming interface for power-up
  • 28 PLCC and 32 LQFP packaging
  • 28-lead and 32-lead Pb-free package available
  • SiGe Technology
  • Ambient temperature range: 0°C to +70°C
  • Pin and function compatible to the MC12439

Description

The MPC9239 is a 3.3 V compatible, PLL based clock synthesizer targeted for high performance clock generation in mid-range to high-performance telecom, networking, and computing applications. With output frequencies from 3.125 MHz to 900 MHz and the support of differential LVPECL output signals the device meets the needs of the most demanding clock applications. Features

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