8545BGLFT

Overview

The Renesas Electronics Corporation 8545BGLFT is a clock buffer integrated circuit designed for high-speed signal distribution. It features a 2:4 input-to-output ratio and supports a maximum frequency of 650 MHz. The device operates on a single 3.3V power supply, with a voltage range of 3.135V to 3.465V. Housed in a 20-TSSOP package (0.173 inch / 4.40mm width), it is rated for an operating temperature range of 0°C to 70°C. This component functions as a fan-out buffer and multiplexer, utilizing CML, HCSL, LVDS, LVHSTL, LVPECL, or SSTL inputs to drive differential outputs.

Feature Summary

• 2:4 Input/Output Ratio
• Maximum Frequency of 650 MHz
• Single 3.3V Power Supply Operation
• 20-TSSOP Surface Mount Package

Applications

• High-speed data communication systems
• Clock distribution networks
• Server and storage infrastructure

Procurement Notes

Verify the current lifecycle status, as this part may be discontinued. Confirm package dimensions and pinout compatibility during procurement. Check for recent Product Change Notices (PCN) regarding assembly site changes or labeling updates. Ensure the supplier provides valid RoHS compliance documentation. Validate that the specific suffix matches the required tape and reel or tube packaging format.

Selection Notes

Select this component when a 2:4 clock fan-out with 650 MHz capability is required. Ensure the system design supports the specified 3.3V supply voltage. Verify that the input signal standards (CML, LVDS, etc.) match the source driver. Consider the 20-TSSOP footprint constraints for PCB layout. Compare against the 8543bglf if higher frequencies up to 800 MHz are needed.

Part Context

The 8545BGLFT belongs to the Renesas 8545B series of clock buffers. It is related to other variants such as the 8545BGILFT and 8545BGLF, which share similar electrical characteristics but may differ in packaging or industrial temperature ratings. This series is part of Renesas' broader portfolio of timing solutions for high-performance computing applications.

Replacement Considerations

The 8545BGILFT is a verified alternative within the same series. The 8543bglf offers a similar 2:4 ratio but supports up to 800 MHz. Verify pin compatibility and thermal requirements before substituting.