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SIT1602BC-12-18E-66.666660

SIT1602BC-12-18E-66.666660

SiTime
66.66666 MHz XO (Standard) HCMOS, LVCMOS Oscillator 1.8V Enable/Disable 4-SMD, No Lead
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Overview

The SIT1602BC-12-18E-66.666660 is a high-performance 66.66666 MHz MEMS oscillator from SiTime, designed to provide a stable clock source for digital circuits. Operating at a low supply voltage of 1.8V, this device utilizes MEMS technology to offer superior reliability and shock resistance compared to traditional quartz oscillators. It features an enable/disable function and comes in a compact 2.50mm x 2.00mm surface-mount package.

Why Choose This Part

This MEMS oscillator provides a frequency stability of +/-25ppm and is significantly more resistant to mechanical shock and vibration than quartz crystals. The 1.8V operation and enable/disable pin allow for efficient power management in sensitive digital designs.

Applications

Ethernet and Network Switches
Provides a precise 66.66 MHz reference clock for network interface controllers and data communication hardware.
Low-Power Embedded Systems
Ideal for battery-operated devices requiring a 1.8V supply to minimize power consumption in the timing subsystem.
Industrial Control Logic
Serves as a rugged clock source for FPGAs and microcontrollers in environments prone to high vibration.

Key Specifications

Type XO (Standard)
Output HCMOS, LVCMOS
Function Enable/Disable
Frequency 66.66666 MHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 4-SMD, No Lead
Size / Dimension 0.098" L x 0.079" W (2.50mm x 2.00mm)
Voltage - Supply 1.8V
Frequency Stability +/-25ppm
Height - Seated (Max) 0.031" (0.80mm)
Operating Temperature -20degC ~ 70degC
Current - Supply (Max) 4.1mA
Supplier Device Package 4-PQFN (2.5x2)

Getting Started

To integrate this part, ensure the 1.8V supply is well-decoupled with a 0.1uF ceramic capacitor placed close to the VDD pin. The enable/disable pin can be controlled by a GPIO to save power, or tied high if the clock is required at all times. Standard PCB reflow profiles for 4-SMD packages apply.