2309-1DCGI

Overview

The Renesas Electronics Corporation 2309-1DCGI is a Zero Delay Buffer IC designed for clock distribution applications. It operates at frequencies up to 133MHz with a 1:9 input-to-output ratio. The device accepts LVTTL inputs and provides LVTTL outputs, powered by a single 3V to 3.6V supply. It is housed in a 16-SOIC package (0.154" width) with surface mount installation. The component supports commercial temperature ranges from 0°C to 70°C and features an on-chip PLL for low skew performance.

Feature Summary

• Zero Delay Buffer architecture aligning output phase with input clock
• Maximum operating frequency of 133MHz
• 1:9 Input/Output ratio with LVTTL interface levels
• 16-SOIC surface mount package

Applications

• High-speed clock distribution systems
• Low skew buffer circuits
• PLL-based clock generation networks

Procurement Notes

Verify the current manufacturing status as the IDT2309 series has been subject to discontinuation notices. Confirm RoHS compliance requirements, as specific suffixes may vary in environmental certification. Check for moisture sensitivity level (MSL) ratings appropriate for assembly processes. Ensure the 16-SOIC footprint matches the design layout constraints.

Selection Notes

Select this part when a 133MHz zero-delay buffer with LVTTL compatibility is required. Compare against the high-drive variant (2309-1HDCGI) if faster rise/fall times are necessary. Verify that the 3.3V supply voltage range meets system power specifications. Consider the 16-SOIC package dimensions for PCB space allocation.

Part Context

This component belongs to the IDT 2309 family of zero-delay buffers, now manufactured under Renesas Electronics following the acquisition of Integrated Device Technology. The 2309-1DCGI represents the standard drive version in the SOIC package format, distinct from the high-drive (-1H) or TSSOP variants within the same product line.

Replacement Considerations

Publicly documented substitutes include NB2309AI1DR2G from onsemi and PL123-09SC-R from Microchip Technology. Verify pinout compatibility and electrical parameters before substitution.