PI49FCT32803LE

Clock Buffers, Drivers Overview

The PI49FCT32803LE is a 1:7 3.3V CMOS clock buffer manufactured by Diodes Incorporated, operating within the 49FCT series. It features a single low-capacitance input generating seven outputs with a maximum frequency of 133 MHz. Key electrical parameters include a propagation delay of less than 2.5 ns, output rise/fall times under 1.5 ns, and an input capacitance below 6.0 pF. The device supports 5V tolerant inputs and operates on a 3.3V ±10% supply voltage. It is housed in a 16-pin 173-mil wide TSSOP package (L) and functions across an industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Seven rail-to-rail CMOS outputs driven by a single low-capacitance input
• Integrated series damping resistors on all outputs for signal integrity
• Low skew performance with pulse skew under 0.35 ns at 133 MHz
• 5V tolerant input interface compatible with TTL and CMOS logic

Clock Buffers, Drivers Applications

• High-speed clock distribution networks
• System timing synchronization
• Data communication equipment clocking

Clock Buffers, Drivers Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS3 compliance status via current manufacturer documentation. Check for potential obsolescence notices or product change notifications prior to procurement. Ensure packaging specifications match design requirements.

Clock Buffers, Drivers Selection Notes

Select this model when a 1:7 fanout ratio is required instead of the 1:5 variant. The 'LE' suffix specifically denotes the 16-pin 173-mil wide TSSOP package. Verify that the 5V tolerant input capability aligns with upstream driver levels. Ensure PCB layout accommodates the TSSOP footprint dimensions.

Clock Buffers, Drivers Part Context

This component belongs to the PI49FCT3280x family of 3.3V CMOS clock drivers. The PI49FCT32803 variant provides seven outputs, distinguishing it from the PI49FCT32802 which offers five outputs. Both share identical pinouts and electrical characteristics except for output count.

Clock Buffers, Drivers Replacement Considerations

PI49FCT32803QE serves as a package alternative offering the same functionality in a 16-pin QSOP format.