SIT8209AI-81-33E-166.666000

Oscillators Overview

The SiTime SIT8209AI-81-33E-166.666000 is a standard MEMS clock oscillator operating at 166.666 MHz with ±20 ppm frequency stability. It features LVCMOS and LVTTL output formats, powered by a 3.3V supply (2.97V to 3.63V). The device supports enable/disable control, operates within -40°C to +85°C, and draws 34 mA current. Packaged in a 3.2mm x 2.5mm SMD form factor, it utilizes Silicon MEMS technology for robust timing performance.

Oscillators Feature Summary

• Utilizes Silicon MEMS resonator technology for enhanced reliability compared to traditional quartz crystals.
• Provides precise frequency stability of ±20 ppm across the specified industrial temperature range.
• Supports gated output functionality that maintains accuracy from the first cycle.
• Includes an enable/disable pin for power management and system control.

Oscillators Applications

• Industrial automation systems requiring stable clock signals
• Communication modules and network equipment
• High-speed interface circuits such as Gigabit Ethernet PHY
• FPGA and processor clock generation

Oscillators Procurement Notes

Verify the specific suffix '81' corresponds to the required package size and pinout configuration against the official datasheet. Confirm the enable/disable functionality aligns with system power management requirements. Ensure the LVCMOS/LVTTL output voltage levels match the receiving logic inputs. Check for any specific handling instructions related to MEMS devices during assembly.

Oscillators Selection Notes

Select this component when a 166.666 MHz clock source with ±20 ppm stability is required. Choose the 3.3V supply variant if the system design mandates this voltage level. Consider the 3.2mm x 2.5mm package dimensions for PCB layout constraints. Opt for this MEMS solution over quartz if shock resistance and faster startup times are critical design factors.

Oscillators Part Context

This part belongs to the SiT8209 series of Silicon MEMS oscillators from SiTime. The series is designed to replace traditional quartz crystals in various applications. The AI suffix typically denotes automotive-grade qualification or specific reliability standards, while the 33 indicates the 3.3V supply voltage. The 166.666000 specifies the exact output frequency.

Oscillators Replacement Considerations

Direct replacements must match the 166.666 MHz frequency, ±20 ppm stability, and 3.3V LVCMOS/LVTTL output. Verify package compatibility (3.2x2.5mm) and pinout alignment. Alternative MEMS oscillators from other manufacturers may require retiming circuit adjustments due to differing jitter specifications.