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Home Products Crystals, Oscillators, Resonators Oscillators~~SIT8008BI-73-33E-12.000000~~

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SIT8008BI-73-33E-12.000000 - SiTime

Name: SiTime SIT8008BI-73-33E-12.000000
Brand: SiTime
SKU: SIT8008BI-73-33E-12.000000
Price: 0.669 USD
Availability: InStock
Rating: 5 (9 reviews)

Manufacturer Part Number: SIT8008BI-73-33E-12.000000

Manufacturer: SiTime

Allelco Part Number: 98D-SIT8008BI-73-33E-12.000000

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 34,982 pcs available, New & Original

Parts Description: MEMS OSC XO 12.0000MHZ H/LV-CMOS

Package: 4-SMD, No Lead

Data sheet: SIT8008BI-73-33.pdf

Other Related Documents
Manufacturing Notes for SiTime Products.pdf

RoHs Status: ROHS3 Compliant

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Specifications

SIT8008BI-73-33E-12.000000 Tech Specifications
SiTime - SIT8008BI-73-33E-12.000000 technical specifications, attributes, parameters and parts with similar specifications to SiTime - SIT8008BI-73-33E-12.000000

Product Attribute	Attribute Value
Manufacturer	SiTime
Voltage - Supply	3.3V
Type	XO (Standard)
Spread Spectrum Bandwidth	-
Size / Dimension	0.079" L x 0.063" W (2.00mm x 1.60mm)
Series	SiT8008B
Ratings	-
Package / Case	4-SMD, No Lead
Package	Strip
Output	HCMOS, LVCMOS

Product Attribute	Attribute Value
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Height - Seated (Max)	0.031" (0.80mm)
Function	Enable/Disable
Frequency Stability	±50ppm
Frequency	12 MHz
Current - Supply (Max)	4.5mA
Current - Supply (Disable) (Max)	4.2mA
Base Resonator	MEMS
Absolute Pull Range (APR)	-

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

How does the SIT8008BI-73-33E-12.000000 achieve its ±50ppm frequency stability over the full -40°C to 85°C range, and what design considerations should engineers account for when deploying it in thermally variable environments?: The SIT8008BI-73-33E-12.000000 leverages SiTime’s proprietary MEMS resonator technology combined with temperature-compensated analog circuitry to maintain ±50ppm stability across its operating temperature range. Unlike quartz-based oscillators that exhibit nonlinear frequency drift near temperature extremes, this device uses a monolithic MEMS structure with integrated compensation that minimizes hysteresis and aging effects. In applications such as industrial control systems or outdoor telecommunications equipment, where ambient temperature swings exceed 60°C, engineers should ensure adequate PCB thermal mass around the oscillator and avoid placing heat-generating components within 5mm to prevent localized thermal gradients that could momentarily degrade stability beyond datasheet limits.

What are the key trade-offs when selecting the SIT8008BI-73-33E-12.000000 over a traditional quartz XO in a battery-powered IoT node requiring low standby current?: While the SIT8008BI-73-33E-12.000000 draws only 4.5mA max during active operation—comparable to many quartz alternatives—its disable mode current of 4.2mA is significantly higher than typical quartz XO shutdown currents (often <1µA). This makes it less suitable for ultra-low-power sleep modes unless the enable/disable function is managed via an external microcontroller GPIO with precise timing. However, the MEMS-based design offers superior shock and vibration resistance (up to 50,000g), eliminating the need for mechanical damping in harsh environments. For IoT nodes subjected to physical stress or wide temperature swings, this robustness may justify the higher disable current, especially if the system duty cycle keeps the oscillator active most of the time.

Can the SIT8008BI-73-33E-12.000000 be used in systems requiring tight synchronization with other clock domains, and how does its phase noise profile influence jitter-sensitive applications like Ethernet PHYs?: Yes, but with caveats. The SIT8008BI-73-33E-12.000000 provides a clean HCMOS/LVCMOS output with typical phase noise of -140 dBc/Hz at 10kHz offset (per SiTime characterization data), which is sufficient for 10/100Mbps Ethernet and many UART/SPI interfaces. However, for Gigabit Ethernet or SerDes applications requiring sub-1ps RMS jitter, a dedicated low-jitter oscillator or PLL-based solution would be more appropriate. Engineers should also note that the enable/disable function introduces a startup delay of approximately 1–3ms; in multi-clock systems, this must be factored into power-up sequencing to avoid timing violations during initialization.

How does the absence of spread spectrum modulation in the SIT8008BI-73-33E-12.000000 impact EMI compliance in consumer or industrial designs, and what mitigation strategies are recommended?: The SIT8008BI-73-33E-12.000000 does not support spread spectrum clocking, meaning its 12 MHz output generates a coherent spectral peak that can challenge EMI limits in FCC or CE-certified products. In dense PCB layouts, this necessitates careful trace routing—keeping clock lines short, using ground guards, and terminating properly to minimize radiation. Ferrite beads or RC filters on the output may help attenuate harmonics, though they can distort rise/fall times. For designs where EMI is a primary concern but spread spectrum isn’t mandatory, pairing this oscillator with a well-shielded enclosure and strategic decoupling (e.g., 100nF + 10pF near VDD) often suffices. If regulatory testing reveals narrowband emissions near 12 MHz, consider migrating to a spread-spectrum-capable variant like the SiT9121.

What layout and decoupling practices are critical when integrating the SIT8008BI-73-33E-12.000000 in a high-speed digital system to preserve signal integrity?: Due to its 2.00mm x 1.60mm 4-SMD no-lead package and fast edge rates (typically <2ns rise/fall), the SIT8008BI-73-33E-12.000000 demands careful PCB layout. Place a 100nF X7R ceramic capacitor within 2mm of the VDD pin, with a secondary 10pF capacitor for high-frequency bypassing. Route the output trace as a controlled-impedance line (50Ω single-ended) with minimal vias and avoid crossing split planes. The GND pad must have multiple thermal vias directly beneath it to ensure low-inductance return paths. In mixed-signal systems, isolate the oscillator ground from noisy digital returns using a star connection at the power supply. Failure to follow these practices can result in increased jitter, ground bounce, or unintended coupling into adjacent analog circuits.

How does the long-term aging characteristic of the SIT8008BI-73-33E-12.000000 compare to quartz oscillators, and what implications does this have for field-deployed systems with multi-year lifespans?: The SIT8008BI-73-33E-12.000000 exhibits typical aging of ±3ppm over the first year and ±5ppm over five years at 25°C—significantly better than standard quartz XOs, which can drift ±10–20ppm over the same period due to crystal contamination and stress relaxation. This enhanced stability stems from the hermetically sealed MEMS cavity and absence of piezoelectric aging mechanisms. For remote sensors, utility meters, or automotive modules operating beyond five years without recalibration, this reduced drift minimizes the need for periodic frequency correction, simplifying firmware design and improving system reliability in mission-critical timing applications.

Is the SIT8008BI-73-33E-12.000000 suitable for automotive under-hood applications, given its -40°C to 85°C rating and AEC-Q100 compliance status?: While the SIT8008BI-73-33E-12.000000 operates reliably across -40°C to 85°C and is RoHS3 compliant, it is not AEC-Q100 qualified. Automotive under-hood environments often exceed 105°C ambient, and components must undergo rigorous stress testing per AEC standards. For infotainment or cabin electronics staying below 85°C, this oscillator may be acceptable with proper derating. However, for engine control units, transmission systems, or battery management systems, engineers should select an AEC-Q100 Grade 2 or Grade 1 qualified alternative such as the SiT8925, which supports -40°C to 105°C and includes enhanced reliability screening.

What advantages does the MEMS-based architecture of the SIT8008BI-73-33E-12.000000 offer in high-vibration environments compared to quartz oscillators?: The SIT8008BI-73-33E-12.000000’s monolithic MEMS resonator is inherently immune to the microcracking and frequency shifts that plague quartz crystals under mechanical stress. In applications like drone navigation systems, railway signaling, or portable medical devices subjected to continuous vibration, quartz oscillators can exhibit frequency jumps or complete failure, whereas this device maintains ±50ppm stability even under 20g RMS random vibration. Additionally, the absence of wire bonds and fragile crystal blanks eliminates common failure modes, making it ideal for ruggedized designs where reliability outweighs marginal cost differences.

How should the enable/disable function of the SIT8008BI-73-33E-12.000000 be controlled to avoid glitches or metastability in synchronous systems?: The enable pin (typically tied to a microcontroller GPIO) must be asserted only when the supply voltage has stabilized above 3.0V and deasserted after the system no longer requires the clock. Rapid toggling (<10µs pulses) can cause partial startup states or output instability. Best practice involves enabling the oscillator during power-up sequencing and disabling it only during full system shutdown. If dynamic control is necessary, insert a 10–100µs delay after enabling before using the clock, and ensure the disable signal meets the minimum low-time specification (usually 100ns). Glitch-free operation also requires that the enable trace be kept short and away from high-dV/dt signals to prevent capacitive coupling.

Can the SIT8008BI-73-33E-12.000000 replace a crystal resonator in a microcontroller-based design, and what firmware or hardware modifications are typically required?: Yes, the SIT8008BI-73-33E-12.000000 can directly replace a crystal in most MCU applications, provided the microcontroller accepts an external clock input (not just a resonator). Unlike crystals, it requires no load capacitors or feedback circuitry—simply connect the output to the XTAL_IN pin and leave XTAL_OUT unconnected. Firmware may need adjustment if the original design relied on crystal startup time for initialization delays; since this oscillator starts within 3ms, shorter boot sequences are possible. Additionally, ensure the MCU’s input threshold is compatible with 3.3V LVCMOS levels, as some 1.8V-only cores may require level shifting.

Parts with Similar Specifications

The three parts on the right have similar specifications to SiTime SIT8008BI-73-33E-12.000000

Product Attribute
Part Number	SIT8008BI-73-33E-12.000000G	SIT8008BI-73-33E-12.000000D	SIT8008BI-73-33E-12.000000E	SIT8008BI-73-33E-108.000000D
Manufacturer	SiTime	SiTime	SiTime	SiTime
Current - Supply (Disable) (Max)	-	-	-	-
Voltage - Supply	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Type	-	-	-	-
Function	-	-	-	-
Size / Dimension	-	-	-	-
Base Resonator	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Ratings	-	-	-	-
Frequency	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Height - Seated (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Absolute Pull Range (APR)	-	-	-	-
Current - Supply (Max)	-	-	-	-
Spread Spectrum Bandwidth	-	-	-	-
Output	-	-	-	-
Series	-	-	-	-
Frequency Stability	-	-	-	-

SIT8008BI-73-33E-12.000000 Datasheet PDF

Download SIT8008BI-73-33E-12.000000 pdf datasheets and SiTime documentation for SIT8008BI-73-33E-12.000000 - SiTime.

Other Related Documents: Manufacturing Notes for SiTime Products.pdf

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Customer Reviews

Evaluation: 10 Articles

Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.

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Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

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