2308A-1HDCGI8

Overview

The Renesas 2308A-1HDCGI8 is a 3.3V zero-delay clock multiplier designed for high-speed clock distribution and multiplication applications. Operating within a frequency range of 10MHz to 133MHz, it utilizes a phase-lock loop (PLL) to align the phase between the incoming clock and output clock, achieving zero delay. The device features two banks of four outputs each, controlled via select addresses, allowing independent enablement or tri-stating of output banks. It supports 1x multiplication factors and requires no external RC network.

Feature Summary

• Zero-delay PLL operation synchronizes outputs to the input clock with skew less than 200 ps
• Distributes one clock input to two banks of four LVCMOS outputs
• Operates at 3.3V VDD with cycle-to-cycle jitter less than 200 ps
• Includes test mode for direct input clock drive and power-down mode drawing less than 25uA

Applications

• High-speed clock distribution systems
• Clock multiplication applications requiring precise phase alignment
• Systems utilizing 10MHz to 133MHz operating frequencies

Procurement Notes

Verify component status as the 2308A series may be discontinued. Confirm package details are SOIC-16 and check moisture sensitivity level requirements during storage and handling. Ensure compatibility with 3.3V logic levels and verify that the specific suffix indicates lead-free composition if required by assembly processes.

Selection Notes

Select this part when zero-delay synchronization is critical for system timing integrity. Choose the 2308A variant specifically for 1x multiplication configurations. Ensure the design accommodates the external feedback pin connection necessary for PLL closure and delay control. Verify that the 16-pin SOIC package fits the PCB layout constraints.

Part Context

This component belongs to the 2308 family of zero-delay clock multipliers from Renesas (formerly IDT). The 'A' designation typically denotes specific prescaling or multiplication options, while '1H' indicates high-drive capability in some variants, though datasheets specify 1x multiplication for this configuration. It serves as a buffer and multiplier for digital systems requiring low-jitter clock signals.

Replacement Considerations

Direct substitutes include other members of the 2308 family such as the 2308B-1HDCG8 or 23S08 series if spread spectrum support is needed. Verify pinout compatibility and electrical parameters before substitution. Cross-reference with current Renesas product availability as older generations may have limited stock.