ICS9248BF-81LF

Overview

The ICS9248BF-81LF is a frequency generator and buffer IC from Renesas Electronics Corporation, designed for application-specific clock and timing requirements. It features a single circuit with a 1:28 input-to-output ratio, accepting crystal inputs to generate up to 28 synchronized clock outputs. The device operates within a supply voltage range of 3.135V to 3.465V and supports frequencies up to 133.3MHz. It is housed in a 48-BSSOP (7.50mm width) surface-mount package and functions reliably within an operating temperature range of 0°C to 70°C.

Feature Summary

• Generates up to 28 synchronized clock outputs from a single crystal input
• Supports output frequencies up to 133.3MHz
• Operates on a 3.135V to 3.465V power supply
• Housed in a 48-pin BSSOP surface-mount package

Applications

• System clock distribution in computing platforms
• Timing synchronization in telecommunications infrastructure
• Clock generation for industrial control systems

Procurement Notes

Verify the specific suffix '81' against official Renesas documentation to confirm pinout compatibility and electrical specifications. Ensure the selected component matches the required 0°C to 70°C commercial temperature grade for the intended environment.

Selection Notes

Select this component when a high-fanout clock solution is required from a single reference source. Confirm that the system design accommodates the 3.135V to 3.465V supply voltage constraints and that the 48-SSOP package fits the available PCB footprint.

Part Context

This part belongs to the Renesas frequency generator and buffer family, which provides precise timing solutions for digital systems. It serves as a critical interface between low-frequency crystal references and high-speed digital logic requiring multiple synchronized clock domains.

Replacement Considerations

Consult official cross-reference lists for verified equivalents. Verify that any substitute maintains the 1:28 ratio, 133.3MHz maximum frequency, and compatible 48-SSOP package dimensions.