49FCT806SOG8

Overview

The Renesas Electronics Corporation 49FCT806SOG8 is a Fast CMOS inverting buffer and clock driver. It features two independent output banks, each providing a 1:5 fanout from a TTL-compatible input. The device includes a dedicated monitor (MON) output for diagnostics and PLL driving. Key electrical specifications include a maximum propagation delay of 5.3 ns, guaranteed low skew under 700 ps, and high drive capability with -24 mA source and +64 mA sink currents. It operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Dual independent 1:5 fanout buffers with separate 3-state control inputs (OEA, OEB).
• Integrated MON output identical to standard outputs for system monitoring.
• TTL compatible inputs and outputs with rail-to-rail voltage swing.
• High drive strength: -24mA IOH and +64mA IOL.

Applications

• Clock distribution networks requiring low skew.
• PLL driving applications utilizing the monitor output.
• Memory and address bus drivers.
• System diagnostics via heartbeat monitoring.

Procurement Notes

Verify component status as this part may be obsolete or end-of-life. Confirm package type matches the SOIC-20 footprint. Check RoHS compliance requirements against specific manufacturing date codes, as non-green parts have historically faced discontinuation notices.

Selection Notes

Select this component when dual independent clock buffering with a diagnostic monitor is required. Ensure the load capacitance does not exceed 50 pF to maintain specified timing parameters. Verify that the 0°C to +70°C commercial temperature range meets the application's environmental constraints.

Part Context

This device belongs to the FCT series of Fast CMOS logic components. It was originally manufactured by Integrated Device Technology (IDT), which was acquired by Renesas Electronics Corporation. The 'SOG8' suffix indicates a Small Outline IC package with tape and reel packaging.

Replacement Considerations

Consult official manufacturer documentation for current cross-reference data. Due to potential obsolescence, verify if newer generations of clock drivers are available from Renesas Electronics Corporation.

FAQ

What is the function of the MON pin?

The MON pin serves as a 'Heartbeat' monitor output. It provides an identical signal to the other outputs, allowing it to be used for diagnostics and PLL driving.

How is the 3-state control managed?

The device has two independent output banks controlled by active-low inputs OEA and OEB. When these inputs are High, the respective outputs enter a high-impedance state.

What is the maximum output skew?

The maximum output skew (tSK(O)) between outputs of all banks in the same package is guaranteed to be less than 700 ps.