IDT2309NZ-1HPG

Clock Buffers, Drivers Overview

The IDT2309NZ-1HPG is a nine-output, 3.3V clock buffer designed for distributing high-speed clocks in mobile and desktop PC systems with SDRAM support. It features one input to nine output configuration, supporting two DIMMs or four SO-DIMMs with an additional output for PLL feedback. The device operates at frequencies from DC to 133.33MHz with a typical propagation delay of 8.7ns and output-to-output skew under 250ps. It consumes less than 32mA at 66.6MHz with unloaded outputs and utilizes multiple VDD and GND pins for noise and EMI reduction.

Clock Buffers, Drivers Feature Summary

• One input to nine output buffer/driver configuration
• Supports two DIMMs or four SO-DIMMs with dedicated PLL feedback output
• Low power consumption: less than 32mA at 66.6MHz (unloaded)
• Buffers frequencies from DC to 133.33MHz with <250ps output skew

Clock Buffers, Drivers Applications

• Mobile PC system clock distribution
• Desktop PC systems with SDRAM support
• Driving two DIMMs or four SO-DIMMs
• External or chipset PLL feedback loops

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix 'PG' corresponds to the 16-pin TSSOP package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status as non-green parts have reached end-of-life. Check current manufacturer availability as this component may be subject to obsolescence notices.

Clock Buffers, Drivers Selection Notes

Select based on required operating temperature; use 'I' suffix variants for industrial range (-40°C to +85°C). Ensure load capacitance requirements are met (30pF below 100MHz, 15pF above 100MHz). Verify supply voltage compatibility within the 3V to 3.6V range for proper LVTTTL operation.

Clock Buffers, Drivers Part Context

This component belongs to the IDT2309N series of nine-output 3.3V clock buffers. It was originally manufactured by Integrated Device Technology, Inc., which has since been acquired by Renesas Electronics Corporation. The part is designed specifically for low-cost, low-power clock distribution in memory subsystems.

Clock Buffers, Drivers Replacement Considerations

Direct replacements include other variants within the IDT2309N family such as IDT2309NZ-1HDCG (SOIC package) or industrial temperature versions like IDT2309NZ-1HPGI. Cross-reference with Renesas equivalents if original IDT stock is unavailable.