843011CGLFT

Clock Generators, PLLs, Frequency Synthesizers Overview

The Renesas 843011CGLFT is a clock generator and PLL frequency synthesizer belonging to the FemtoClock series. Manufactured by Renesas Electronics, this component is designed for high-performance timing applications requiring low jitter synthesis. It operates within a supply voltage range of 2.375 V to 3.63 V and supports an operating temperature range from -40°C to +85°C. The device is housed in an 8-pin TSSOP package, suitable for surface-mount technology (SMD/SMT) installation. This specific part number is classified as a discontinued product with limited availability.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated PLL frequency synthesizer for clock generation
• Low power consumption with 13 mA typical operating current
• Supports LVPECL output levels for high-speed signaling
• Compatible with LVCMOS and LVTTL input signals

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-frequency data communication systems
• Networking equipment requiring precise clock synthesis
• Industrial control systems needing stable timing references
• Test and measurement instruments

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

This component is officially listed as discontinued by Renesas Electronics. Current market availability is restricted, with some distributors reporting limited stock or end-of-life status. Verification of authenticity and condition is critical when sourcing from third-party suppliers due to the obsolescence status. Buyers should confirm the specific manufacturing date code and ensure compliance with RoHS directives before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Engineers replacing this obsolete part should evaluate newer FemtoClock series alternatives that offer similar pinouts and electrical characteristics. Key selection criteria include matching the LVPECL output requirements and ensuring compatibility with existing LVCMOS/LVTTL input interfaces. Thermal performance within the -40°C to +85°C range must be verified against the new component's datasheet specifications to maintain system reliability.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The 843011CGLFT is part of Renesas' FemtoClock family, known for precision clocking solutions. It serves as a specialized clock synthesizer within the broader clock and timer IC category. As a legacy component, it represents earlier generations of low-jitter synthesis technology used in established designs where redesign cycles are long or cost-prohibitive.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-to-pin replacements may not be available due to discontinuation. Engineers should consult Renesas for recommended next-generation FemtoClock devices that support LVPECL outputs and similar input configurations. Functional equivalence testing is required to ensure compatibility with existing system timing architectures.