ZL40255LDF1

Overview

The ZL40255LDF1 is a programmable fanout buffer manufactured by Microchip Technology. It features three outputs and supports multiple output interface types including CML, CMOS, HCSL, HSTL, LVDS, and LVPECL. The device operates with an input voltage range of 1.71 V to 3.465 V and handles maximum input and output frequencies up to 1.035 GHz. It exhibits a maximum propagation delay of 3.9 ns and is housed in a QFN-32 package. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Three-output programmable fanout buffer architecture
• Supports diverse output standards: CML, CMOS, HCSL, HSTL, LVDS, LVPECL
• Maximum operating frequency of 1.035 GHz
• Single CMOS input type

Applications

• High-speed clock distribution networks
• Data communication equipment requiring jitter attenuation
• Telecommunications infrastructure systems

Procurement Notes

Verify the specific suffix LDF1 against the official Microchip Technology datasheet to confirm package details and tape-and-reel specifications. Ensure compatibility with system power supply voltages between 1.71 V and 3.465 V. Confirm that the QFN-32 footprint matches the PCB layout requirements for thermal and electrical performance.

Selection Notes

Select this component when a single CMOS input must be distributed to three distinct loads with varying voltage levels. The ZL40255LDF1 allows configuration of different output standards (e.g., LVDS or HCSL) on the same chip. Compare against other SmartBuffer models if more than three outputs or differential inputs are required.

Part Context

This part belongs to the Microchip SmartBuffer family of clock buffers. It is designed for applications requiring flexible clock signal routing. The LDF1 suffix typically denotes a specific tape-and-reel packaging option for surface-mount assembly, distinguishing it from tray-packaged variants like LDG1.

Replacement Considerations

Direct substitutes include other ZL4025x series devices with compatible pinouts and electrical characteristics. Verify that alternative parts support the same combination of output standards and frequency limits before integration.