PI49FCT32807SE

Clock Buffers, Drivers Overview

The PI49FCT32807SE is a 3.3V CMOS clock driver manufactured by Diodes Incorporated, featuring a single input and ten outputs. It operates within a supply voltage range of 3.0V to 3.6V and supports frequencies up to 133 MHz. The device integrates internal series damping resistors with a typical value of 22 ohms on all outputs. Key electrical parameters include a maximum propagation delay of 2.5 ns, output skew of 0.20 ns, and quiescent current of 30 µA. It is housed in a 20-pin SOIC package and functions across an industrial temperature range of -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• 1:10 Clock Buffer: Converts one low-capacitance input into ten rail-to-rail CMOS outputs.
• Integrated Damping: Includes 22-ohm internal series resistors on all outputs for signal integrity.
• High Speed Performance: Supports 133 MHz operation with propagation delay under 2.5 ns.
• Low Skew Characteristics: Provides output skew of 0.20 ns and pulse skew of 0.35 ns.

Clock Buffers, Drivers Applications

• Clock distribution in synchronous networking systems.
• Buffering clocks for high-speed digital logic interfaces.
• Signal conditioning for CMOS/TTL compatible loads.

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix 'S' corresponds to the 20-pin 300-mil wide SOIC package as defined in the datasheet. Confirm that the component meets Pb-free and Green manufacturing standards. Check for any product discontinuation notifications or PCN updates from the manufacturer regarding this specific part number before finalizing procurement plans.

Clock Buffers, Drivers Selection Notes

Select this component when a 1:10 fan-out ratio is required for 3.3V CMOS clock signals. Ensure the application frequency does not exceed 133 MHz and the load capacitance remains within the tested limits (e.g., 15pF). Verify that the 22-ohm integrated series resistance aligns with the target impedance requirements of the downstream circuitry.

Clock Buffers, Drivers Part Context

This component belongs to the PI49FCT32807 family of 3.3V clock drivers. The 'SE' designation specifically identifies the 20-pin Small Outline Integrated Circuit (SOIC) package variant. Other variants in the family include the QSOP (Q) and SSOP (H) packages, which share identical electrical characteristics but differ in physical dimensions.

Clock Buffers, Drivers Replacement Considerations

Direct pin-compatible replacements within the same package type include the PI49FCT32807QE (QSOP) and PI49FCT32807HE (SSOP), provided the board layout accommodates the respective package footprints. Cross-package substitution requires verifying mechanical fit and thermal performance.