850S1201BGILFT

Overview

The 850S1201BGILFT is a low-skew, 12:1 single-ended clock multiplexer manufactured by Renesas Electronics Corporation. It features twelve selectable single-ended clock inputs and one single-ended clock output. The device operates with nominal output impedance of 20Ω at VDD=3.3V and supports maximum output frequencies up to 250MHz. Propagation delay is specified at a maximum of 2.7ns. It functions in full 3.3V or 2.5V supply modes and is available in lead-free (RoHS 6) packages within a 20-lead TSSOP form factor.

Feature Summary

• 12:1 single-ended clock multiplexer architecture
• Maximum output frequency of 250MHz
• Nominal output impedance of 20Ω at 3.3V supply
• Operates in 3.3V or 2.5V supply modes

Applications

• Clock distribution systems requiring signal selection
• Digital circuits needing single-ended clock routing
• Embedded systems utilizing 2.5V or 3.3V logic levels

Procurement Notes

Verify the complete part number including suffixes such as BGILFT against official Renesas documentation to ensure correct package type and tape-and-reel specifications. Confirm RoHS compliance status and lead-free certification requirements prior to ordering. Cross-reference pinout diagrams with design schematics to validate input/output assignments for the 20-lead TSSOP configuration.

Selection Notes

Select this component when a 12-to-1 single-ended clock selection function is required with propagation delays under 2.7ns. Ensure the system voltage aligns with the supported 2.5V or 3.3V operating ranges. Verify that the 250MHz maximum frequency meets the target clock speed requirements and that the 20Ω output impedance is compatible with the load characteristics.

Part Context

This part belongs to the 850S series of clock multiplexers from Renesas Electronics. It is specifically designed for applications requiring precise clock signal routing among multiple sources. The device is distinct from buffer or driver variants within the broader clock IC portfolio due to its multiplexing capability rather than simple signal amplification or fan-out.

Replacement Considerations

Check for direct cross-reference part numbers from Renesas or other manufacturers offering identical 12:1 single-ended multiplexer functionality. Verify pin compatibility and electrical parameters such as propagation delay and supply voltage range before substituting.