2308-4DCGI8

Overview

The Renesas Electronics Corporation 2308-4DCGI8 is a 3.3V PLL zero-delay clock multiplier designed for high-speed clock distribution applications. It accepts an input frequency range of 10 MHz to 66.6 MHz and generates eight LVCMOS outputs with frequencies up to 133.3 MHz. The device features low cycle-to-cycle jitter of 100 ps and output skew under 200 ps. Packaged in a 16-pin SOIC, it operates within a commercial temperature range of 0°C to +70°C. This component is currently listed as obsolete by the manufacturer.

Feature Summary

• Zero-delay buffer architecture synchronizes output phase with input clock
• Eight LVCMOS outputs distributed across two independent banks
• Low jitter performance: 100 ps peak-to-peak cycle-to-cycle
• External feedback pin allows user-controlled delay adjustment

Applications

• High-speed clock distribution systems
• System synchronization requiring zero delay alignment
• Multiplication of reference clocks from 10 MHz to 66.6 MHz

Procurement Notes

The 2308-4DCGI8 is officially marked as obsolete or end-of-life by Renesas Electronics. Availability is restricted to surplus stock or secondary market channels. Verification of authenticity and storage history is critical due to the component's discontinued status. Standard manufacturing packaging quantities may not apply through primary distributors.

Selection Notes

Select this part when a fixed 1:8 multiplication ratio is required with zero-delay synchronization. Ensure the input source falls within the 10–66.6 MHz range. For higher input frequencies up to 133 MHz, consider the 2308A variant. Verify that the 16-SOIC package fits the PCB layout constraints and that the 3.3V supply voltage matches the system design.

Part Context

This component belongs to the IDT 2308 family of zero-delay buffers. It is functionally equivalent to the IDT2308-4DCG series. The 'I' suffix typically denotes industrial or specific packaging variations, though the core electrical characteristics remain consistent with the standard 2308-4DCG model. It serves as a legacy solution for clock multiplication in older high-speed digital designs.

Replacement Considerations

Direct replacements include the IDT2308-4DCG or the Renesas 2308B-4DCG8. For applications requiring support for higher input frequencies up to 133 MHz, the 2308A-4DCGI8 is a compatible alternative within the same package.