8T49N1012-992NLGI

Overview

The 8T49N1012-992NLGI is a clock generator manufactured by Renesas Electronics. It features one fractional-feedback PLL for frequency synthesis, two integer outputs, and eight additional outputs. The device supports configuration via I2C interface and utilizes an external EEPROM or internal OTP ROM for booting configurations.

Feature Summary

• Generates multiple output frequencies from clock inputs and crystal input
• Supports jitter attenuator and frequency synthesizer modes of operation
• Configurable via I2C interface with EEPROM or OTP boot options

Applications

• Clock distribution in high-speed digital systems
• Jitter attenuation for sensitive data links
• Frequency synthesis for communication equipment

Procurement Notes

Verify the exact suffix (e.g., -992NLGI) against the manufacturer's current datasheet to ensure correct package, temperature range, and boot configuration. Confirm availability status as this part may be subject to obsolescence or transition to SiTime. Request official documentation for pinout and electrical specifications before integration.

Selection Notes

Select this component when requiring a flexible clock solution with mixed integer and fractional outputs. Ensure the design supports the required I2C speed and voltage levels. Consider the available output types and the need for external EEPROM if persistent configuration across power cycles is required without reprogramming.

Part Context

This device belongs to the 8T49N series of clock generators. Renesas has announced that its timing product portfolio, including this series, is being acquired by SiTime. Official support and documentation remain available through Renesas until the end of 2026, after which full transition to SiTime is expected.

Replacement Considerations

Consult SiTime.com for equivalent parts following the acquisition. Verify functional compatibility with existing designs during the transition period.