CDC351IDB

Overview

The CDC351IDB is a single-circuit fanout buffer manufactured by Texas Instruments, designed for clock distribution applications. It accepts a single LVTTL input and provides ten tri-state LVTTL outputs. The device operates within a supply voltage range of 3V to 3.6V and supports maximum frequencies up to 100 MHz. It is housed in a 24-SSOP package with a width of 5.30mm. The component functions without differential signaling capabilities and is rated for an operating temperature range from -40°C to 85°C.

Feature Summary

• 1-to-10 fanout ratio with LVTTL inputs and tri-state LVTTL outputs
• Maximum operating frequency of 100 MHz
• Supply voltage range of 3V to 3.6V
• Available in a 24-SSOP surface-mount package

Applications

• Clock distribution networks requiring signal buffering
• System timing architectures utilizing LVTTL logic levels
• Multi-point clock routing in embedded systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape/reel versus tube packaging configurations. Ensure that the selected variant matches the required thermal and electrical specifications for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when a single-ended LVTTL source must drive multiple LVTTL loads with high fan-out capability. Confirm that the system power supply remains strictly within the 3V to 3.6V range to ensure proper operation. Verify that the 24-SSOP footprint aligns with the PCB layout constraints and that the 100 MHz frequency limit meets the system timing requirements.

Part Context

This part belongs to the Texas Instruments clock buffer family, specifically engineered for distributing clock signals across digital circuits. It serves as a critical interface between clock sources and downstream logic components, ensuring signal integrity and timing accuracy in complex electronic designs.

Replacement Considerations

The CDC351IDWRG4 is a documented alternative offering identical electrical specifications but packaged in a 24-SOIC format instead of SSOP. Verify pin compatibility and physical dimensions before substituting.