5V49EE902NLGI

Clock Generators, PLLs, Frequency Synthesizers Overview

The Renesas 5V49EE902NLGI is an EEPROM programmable clock generator and PLL housed in a 32-VFQFPN package. It features four internal PLLs capable of generating frequencies from 4.9 kHz to 500 MHz using a single reference input ranging from 1 MHz to 200 MHz. The device supports redundant clock inputs with automatic or manual switchover, fractional division on one PLL, and spread spectrum generation on two PLLs. It operates at a 3.3 V core voltage within an industrial temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Four independently programmable internal PLLs for unique non-integer-related frequencies
• Internal non-volatile EEPROM for configuration storage without reprogramming
• Redundant clock inputs with auto/manual switchover capabilities
• Supports LVDS, LVPECL, HCSL, LVTTL, and LVCMOS output standards

Clock Generators, PLLs, Frequency Synthesizers Applications

• High performance data-communications systems
• Telecommunications infrastructure equipment
• Consumer electronics requiring precise timing
• Networking applications

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix NLGI against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Check for active production status as this component may be subject to limited availability or end-of-life notices. Confirm I2C interface compatibility with the target system controller before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple independent clock outputs are required from a single reference source. Ensure the design accommodates the 32-VFQFPN package constraints. Verify that the required output voltage levels (1.8V to 3.3V) align with the load requirements. Consider the 400kHz fast mode I2C speed if programming latency is a critical factor.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the VersaClock III family of programmable clock generators. It serves as a replacement for legacy fixed-frequency oscillators in complex digital systems. The device integrates frequency synthesis and distribution functions into a single IC, reducing board space compared to discrete oscillator solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The 5P35021 and 5P35023 VersaClock 3S devices are listed as alternative products. Verify pinout compatibility and register configuration differences before substituting.