2309A-1HDCGI

Overview

The Renesas Electronics 2309A-1HDCGI is a 3.3V zero delay clock buffer featuring an on-chip phase-lock loop (PLL). It accepts one reference input and drives two banks of four low skew outputs, totaling nine outputs. The -1H suffix indicates high drive capability, supporting frequencies up to 133 MHz with a 10 pF load. The device achieves zero delay by aligning the phase between the incoming clock and output clocks. It operates within the industrial temperature range of -40°C to +85°C and is housed in a 16-pin SOIC package.

Feature Summary

• High drive capability (-1H version) supporting up to 133 MHz operation
• On-chip PLL for zero delay alignment between REF and CLKOUT pins
• Nine outputs distributed across two independent banks with separate enables
• Output skew less than 250 ps and cycle-to-cycle jitter under 200 ps

Applications

• SDRAM clock distribution
• Telecom systems
• Datacom applications
• PC motherboards and workstations
• Critical path delay designs

Procurement Notes

Verify that the ordering suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'G' denotes lead-free packaging. Confirm the 'DC' suffix corresponds to the 16-pin SOIC package type. Ensure the '-1H' designation matches the required high drive strength specifications for the target circuit design.

Selection Notes

Select this component when high drive strength is necessary for driving larger capacitive loads at frequencies up to 133 MHz. The -1H variant offers faster rise and fall times (1.5 ns) compared to the standard drive version. Ensure all outputs, including the feedback pin CLKOUT, are equally loaded to maintain zero I/O delay performance.

Part Context

The IDT 2309A is a 16-pin version of the IDT 2305A, which provides five outputs. The 2309A expands this capacity to nine outputs organized into two banks. The device integrates the PLL feedback mechanism internally via the CLKOUT pad, eliminating the need for external RC networks for basic operation.

Replacement Considerations

IDT2309A-1HDCI is the equivalent part number from Integrated Device Technology prior to acquisition.