2308-1HDCGI8

Overview

The Renesas 2308-1HDCGI8 is a zero-delay clock multiplier IC designed for high-speed clock distribution applications. It operates within a frequency range of 10 MHz to 133 MHz and utilizes a phase-lock loop (PLL) architecture to align the phase between incoming and output clocks. The device features an LVTTL input and LVCMOS outputs, supporting a supply voltage of 3.3 V. Packaged in a 16-pin SOIC format, it provides eight outputs organized into two banks with independent enable controls. Key performance metrics include a maximum cycle-to-cycle jitter of 100 ps and an output skew of less than 200 ps.

Feature Summary

• Zero-delay PLL architecture synchronizes output phase with the input clock reference.
• Operates at frequencies from 10 MHz to 133 MHz with 3.3 V power supply.
• Eight LVCMOS outputs divided into two independently controllable banks.
• Low jitter specification of 100 ps peak-to-peak cycle-to-cycle.

Applications

• High-speed clock distribution in digital systems.
• Clock multiplication and buffering for microprocessors.
• Synchronization circuits requiring low skew and jitter.

Procurement Notes

This component is identified as obsolete or end-of-life by major distributors. Verification of current stock availability through authorized channels is required before procurement planning. Alternative sources may only offer surplus inventory. Compliance with RoHS standards should be confirmed against specific manufacturing dates due to potential legacy production variations.

Selection Notes

Select this part when a single-ended LVTTL input must drive multiple LVCMOS loads with minimal delay variation. Ensure the design accommodates the 16-pin SOIC package dimensions. Verify that the system's operating temperature range falls within the commercial limits of 0°C to 70°C. Check if the 1:8 ratio meets the fan-out requirements without additional buffering.

Part Context

The 2308 series belongs to Renesas' portfolio of zero-delay buffer and clock multiplier devices. Variants such as the 2308A and 2308B share similar functional architectures but differ in package types, drive strengths, and specific electrical characteristics. This model specifically denotes the SOIC package variant with GI8 suffix indicating tape and reel packaging configuration.

Replacement Considerations

Publicly documented substitutes include the Texas Instruments CDCVF25081PW and CDCVF25081PWR. These alternatives offer similar zero-delay buffering capabilities and are listed as upgrade options by distributors. Pinout compatibility and electrical parameter alignment must be verified during integration.