2308-3DCGI8

Overview

The Renesas Electronics 2308-3DCGI8 is a zero-delay clock multiplier IC designed for high-speed clock distribution. It operates on a single 3.3V supply and accepts an input frequency up to 133 MHz, providing eight LVTTL outputs at the same frequency. The device utilizes a Phase-Lock Loop (PLL) architecture to achieve zero delay between the input reference and output clocks. It is housed in a 16-pin SOIC package with surface-mount installation. The component supports commercial operating temperatures ranging from 0°C to +70°C and draws approximately 45 mA of operating current.

Feature Summary

• Zero-delay PLL architecture aligns output phase with the input clock
• Single 3.3V power supply operation with 45 mA typical current draw
• Eight LVTTL outputs supporting frequencies up to 133 MHz
• 16-pin SOIC surface-mount package

Applications

• High-speed clock distribution systems
• Clock multiplication for digital logic circuits
• System synchronization requiring low skew

Procurement Notes

The 2308-3DCGI8 is identified as an obsolete or end-of-life product by major distributors. Verification of availability requires checking secondary market suppliers or authorized stockists for remaining inventory. Compliance with RoHS standards should be confirmed via specific datasheet documentation due to the component's age and potential manufacturing changes.

Selection Notes

Select this component when a fixed 1:8 clock multiplication ratio is required without external programming. Ensure the design accommodates LVTTL output levels and a 3.3V supply rail. For applications requiring spread spectrum compatibility or different output types, consider the 23S08 series variants instead.

Part Context

This part belongs to the IDT 2308 family of zero-delay buffers and multipliers. It serves as a legacy solution for clock generation before the widespread adoption of programmable clock generators. The 'I8' suffix typically denotes tape-and-reel packaging for automated assembly.

Replacement Considerations

Direct pin-compatible replacements are limited due to the obsolete status. Review the 23S08 series for similar functionality with added features like spread spectrum support. Verify that any substitute maintains the 16-SOIC footprint and 3.3V logic compatibility.