840051AGLF

Clock Generators, PLLs, Frequency Synthesizers Overview

The 840051AGLF is a Gigabit Ethernet Clock Generator manufactured by Renesas Electronics Corporation. It belongs to the FemtoClock family and is designed for high-performance applications requiring precise clock synthesis. The device operates within an input frequency range of 17.5 MHz to 21.25 MHz and supports output frequencies up to 170 MHz. It features LVCMOS and LVTTL output formats, ensuring compatibility with various digital interfaces. The component is housed in an 8-TSSOP package with a width of 4.40 mm. It is rated for operation in commercial temperatures from 0°C to 70°C and complies with RoHS3 standards.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Synthesizes high-frequency clocks for Gigabit Ethernet applications
• Provides LVCMOS and LVTTL output signal formats
• Operates with a core voltage of 3.3 V

Clock Generators, PLLs, Frequency Synthesizers Applications

• Gigabit Ethernet systems
• High-performance clock generation circuits
• Network interface equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This component is officially classified as obsolete by the manufacturer. Verification of availability should focus on distributor surplus channels or alternative replacement part numbers. Confirm end-of-life status and final order dates through official Renesas documentation before procurement planning.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component only if Gigabit Ethernet clock synthesis with specific LVCMOS/LVTTL outputs is required. Verify that the 17.5–21.25 MHz input range matches the system reference clock. Note the commercial temperature range limits suitability for automotive or industrial environments.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The 840051AGLF is part of the FemtoClock series, which focuses on low-jitter clock solutions. As an IDT-originated product now under Renesas, it serves specialized networking roles. The 'L' suffix indicates lead-free packaging compliant with environmental regulations.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status.