8T49N203A-027NLGI

Overview

The Renesas 8T49N203A-027NLGI is a FemtoClock NG Universal Frequency Translator (UFT) clock generator. It features a single PLL with differential input and output capabilities, supporting input formats including LVDS, LVPECL, HCSL, LVHSTL, and crystal oscillators. The device generates up to four LVPECL outputs from a single reference source. Key electrical parameters include a maximum output frequency of 25 MHz, a supply voltage range of 2.375 V to 3.465 V, and an operating temperature range of -40°C to +85°C. It utilizes a 40-pin VFQFN package.

Feature Summary

• FemtoClock NG PLL technology for low jitter performance
• Supports multiple differential input types: LVDS, LVPECL, HCSL, LVHSTL, and Crystal
• Generates up to four LVPECL outputs from a single reference
• I2C programmable interface for custom frequency configurations

Applications

• High-speed serial link clock generation
• Data communication equipment timing
• Telecommunications infrastructure synchronization

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific order code suffix matches the required frequency configuration. Check for RoHS compliance status and moisture sensitivity level (MSL) ratings prior to PCB assembly planning. Ensure EOL status is reviewed if long-term availability is required.

Selection Notes

Select this model when a single differential reference clock must be translated into multiple LVPECL outputs with precise frequency ratios. Verify that the required output frequencies fall within the 25 MHz maximum limit. Compare against other FemtoClock NG variants if higher output counts or different output voltage levels are needed.

Part Context

This component belongs to the Renesas FemtoClock NG family, designed for universal frequency translation in high-performance digital systems. It integrates a low-phase-jitter PLL with flexible input/output options, replacing older discrete clocking solutions in complex multi-frequency environments.

Replacement Considerations

Public documentation indicates the 8T49N203A series has been discontinued. Potential substitutes include the 8T49N241-994NLGI, 8T49N241-998NLGI, and 8T49N241-999NLGI. These alternatives may require verification of pin compatibility and register settings.