2309-1HDCGI8

Overview

The Renesas 2309-1HDCGI8 is a low phase noise, high-speed PLL-based zero delay buffer. It provides nine low-skew outputs at speeds up to 133 MHz at 3.3 V. The device accepts one reference input and drives two banks of outputs (four and five). It features on-chip PLL feedback obtained from the CLKOUT pad. The -1H variant offers higher drive capability with faster rise and fall times compared to standard versions. It operates within a supply voltage range of 3 V to 3.6 V.

Feature Summary

• Zero delay buffer architecture aligns output clock phase with the incoming reference clock.
• Distributes one input clock to nine LVTTL outputs across two separate banks.
• Operates at frequencies up to 133 MHz with low jitter (<200 ps cycle-to-cycle).
• Includes tri-state control and power-down modes for reduced current consumption.

Applications

• High-speed clock distribution in digital systems.
• Buffering reference clocks for high-performance processors or memory interfaces.
• Systems requiring low skew and precise phase alignment between multiple clock domains.

Procurement Notes

Verify the suffix 'I8' indicates reel packaging and industrial temperature range (-40°C to 85°C) if supported by specific datasheets. Confirm RoHS compliance status as historical data varies. Check for obsolescence notices or PCNs regarding assembly location changes. Ensure compatibility with 3.3V logic levels for both input and output signals.

Selection Notes

Select this component when a single reference clock must be distributed to nine loads with minimal skew. The -1H designation is required for applications needing higher drive strength and faster edge rates. Compare against the 2309A series for updated specifications or different package options like TSSOP. Ensure the operating frequency does not exceed 133 MHz.

Part Context

This part belongs to the IDT/Renesas 2309 family of zero delay buffers. It is functionally similar to the 2309A-1 but may differ in manufacturing origin or specific electrical characterization. The 2309 series is designed to replace discrete buffering solutions in high-speed digital designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.