From the smallest footprint watch crystal to low-cost oscillators and real time clock modules with embedded tuning-fork crystal that offers improved stability and power efficiency.

These products are selected from our full range of crystals, oscillators and RTC modules for their availability and cost-effectiveness. Non-standard and custom options are always available.

The Golledge range allows the engineer to select the optimum balance of precision, power consumption, size, and price to suit their designs.

Our products are used in a wide range of applications, including:

  • Smart Utility Meters
  • Point of Sale (POS) terminals
  • Data loggers
  • Industrial Control Equipment

  • Heating Controllers
  • Glucose Meters
  • White Goods
  • AMR
  • Set Top boxes
  • Automotive dash board electronics (AEC-Q200)
  • Precision Time stamping

32.768kHz Crystal Solutions

32.768kHz crystals, traditionally referred to as watch crystals, play an integral part of many modern timing solutions. 

Our recommended 32.768kHz crystal solutions included several different form factors to allow the choice of the most up-to-date ultra-miniature packages (CM9V-T1A), and backwards compatibility when considering a re-design involving older technology (GWX-26 or GSX-200).

 Several of these products, such as the GSX-315, CM7V-T1A and CM8V-T1A, also optionally feature additional application-specific qualifications, such as AEC-Q200 qualification for automotive projects. 

Our recommended crystal products for 32.768kHz requirements

GWX-26

2x6mm Cylindrical Watch Crystal


With competitive pricing for high volume commercial projects, the GWX-26 32.768kHz watch crystal is ideal for applications expected to reach high commercial numbers. Configure your specifications here.

  • 32.768kHz
  • Low cost
  • Range of tolerances
  • Excellent ageing characteristics
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GSX-200

32.768kHz CM200C Watch Crystal


The plastic moulded surface mount package of the GSX-200 is a fully compatible drop in replacement for MC-306, DMX-26S, FSRLF, E1WS, SMQ32SL, RSM200S and other industrial standard plastic-package crystals. The ideal part for use within existing designs where a footprint has already been decided, the GSX-200 offers highly competitive pricing and is available up to industrial operating temperature ranges.

  • 32.768kHz
  • Low profile plastic moulded package
  • Miniature size for high density applications
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GSX-315

Miniature SM 32.768kHz Watch Crystal


Our most popular 32.768kHz solution, the GSX-315 offers highly competitive pricing and low power consumption (just 0.1uW typical) in a miniature vacuum sealed ceramic package.

  • 32.768kHz
  • Miniature ceramic package with metal lid
  • Vacuum seal for excellent long-term stability
  • Low cost for volume applications
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MS3V-T1R

SM Crystal with Ultra-miniature Footprint


The MS3V-T1R crystal features unique square profile for pick and place and is available in an ultra-miniature footprint package at low frequencies between 32.0 ~ 200kHz. Featuring a range of calibration tolerance and circuit condition options, in addition to high shock and vibration resistance, this crystal is ideal for a range of applications requiring a robust crystal solution.

  • 30.0 ~ 200kHz
  • Unique square section case for pick & place
  • Large stocks held at all times
  • High shock & vibration resistance
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CM7V-T1A

SM 32.768kHz Watch Crystal with Military Temperature Range


The CM7V-T1A surface mount watch crystal offers high shock and vibration resistance within a minature ceramic package with metal lid. Optional automotive and military operating temparture ranges means this 32.768kHz crystal is available for a wide range of applications. 

  • 32.768kHz
  • Miniature ceramic package with metal lid
  • High shock & vibration resistance
  • Extended temperature range options
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CM8V-T1A

Ultra-Miniature 2012 Package 32.768kHz SM Watch Crystal


The ultra-miniature CM8V-T1A offers a 32.768kHz solution with ultra-low profile package and high shock and vibration resistance. The CM8V-T1A is available in automotive and extended operating temperature ranges, with full AEC-Q200 qualification on request, and features low drive level.

  • 32.768kHz
  • Ultra low profile - 0.6mm
  • High shock & vibration resistance
  • Extended temperature range option
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CM9V-T1A

Ultra-Miniature 1610 Package 32.768kHz SM Watch Crystal


One of our smallest 32.768kHz surface mount crystal, the CM9V-T1A comes in a ultra-miniature ceramic package with metal lid and gold plated pads for increased solderability. This watch crystal also features high shock and vibration resistance and low power consumption as standard.

  • 32.768kHz
  • Ultra low profile - 0.5mm
  • Miniature ceramic package with metal lid
  • High shock & vibration resistance
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32.768kHz Crystal Solutions - Product Comparison Table

Product Size (mm) Board area (mm2) Sample Lead Time Standard Frequency Tolerance @25°C Temperature Stability Industrial -40 to 85°C Military -55 to 125°C Extreme +200°C Auto AEC-Q200 Circuit Condition More Information
GWX-26 6.0x2.0x2.0 3.1 Stock ±20ppm -0.034 ±0.006ppm/°C2  Available        12.5pF  View Product Details
GSX-200 8.0x3.8x2.4 30.4 Stock ±20ppm -0.034 ±0.006ppm/°C2   Available       6, 9, 12.5pF  View Product Details 
GSX-315 3.2x1.5x0.9 4.8 Stock ±20ppm -0.04/°C2   Available       Available 4, 6, 7, 9, 12.5pF  View Product Details 
MS3V-T1R 6.7x1.4x1.4 9.4 Stock ±20ppm -0.035ppm/°C2 ±10%   Available       7, 9, 12.5pF  View Product Details 
CM7V-T1A 3.2x1.5x0.65 4.8 Stock ±20ppm -0.035ppm/°C2 ±10%   Available   Available     Available 4, 6, 7, 9, 12.5pF   View Product Details 
CM8V-T1A 2.0x1.2x0.6 2.4 Stock ±20ppm -0.035ppm/°C2 typ   Available       Available  4, 6, 7, 9, 12.5pF  View Product Details 
CM9V-T1A 1.6x1.0x0.5 1.6 Stock ±20ppm -0.035ppm/°C2 typ   Available      

7, 9, 12.5pF 

View Product Details 

32.768kHz Oscillator Solutions

Our recommended 32.768kHz oscillators cover a wide range of potential usage cases, including the GHTXO for exceptional high temperature applications (up to 250°C), and the GAO-3201 with package size of just 2.5x2.0x0.8mm, for situations where board size is paramount. Many products also features tight stability options however, if stability over temperature is a requirement you may wish to check out our range of TCXOs here.

Our recommended solutions for 32.768kHz oscillator requirements

GAO-3201

1.8~5.0V 32.768kHz Oscillator


The GAO-3201 2.5x2.0mm 32.768kHz oscillator solution has excellent temperature stability specifications and is operable with any supply voltage within the 1.8V-5.0V range.

  • 32.768kHz
  • Excellent temperature stability
  • Low current consumption
  • AT-cut resonator + dividing circuit
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GAO-3301

1.8~3.3V 32.768kHz Oscillator with 3225 Package


The miniature 3.2 x 2.5mm GAO-3301 offers a competitively priced 32.768kHz oscillator solution with a choice of operating temperature ranges and temperature stabilities. Find full specifications here.

  • 32.768kHz
  • Excellent temperature stability
  • Low current consumption
  • AT-cut resonator + dividing circuit
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GFO-3301

1.5~5.5V 32.768kHz Low Power Oscillator


The GFO-3301 32.768kHz oscillator solution uses a tuning fork resonator to produce CMOS output whilst consuming very low supply current of only 1.5µA. This miniature oscillator also features very low standby current consumption of only 1.0µA.

  • 32.768kHz
  • Extremely low current consumption
  • Operational from 1.5V ~ 5.5V
  • Tuning fork resonator
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GHTXOL

3.3V CMOS Oscillator for Extreme Environments


Featuring extreme operating temperature range of -55 to +250°C, the 3.3V GHTXOL oscillator is available as a 32.768kHz oscillator solution, or at higher frequencies from 1.5 ~ 30.0MHz. 

  • 32.768kHz / 1.5 ~ 30.0MHz
  • High temperature operation up to 250°C
  • High shock and vibration resistance
  • CMOS output
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GHTXOS

5.0V CMOS Oscillator for Extreme Environments


Featuring extreme operating temperature range of -55 to +250°C, the 5.0V GHTXOS oscillator is available at frequencies from 1.5 ~ 50.0MHz and features exceptionally high shock and vibration resisatnce.

  • 1.5 ~ 50.0MHz
  • High temperature operation up to 250°C
  • High shock and vibration
  • CMOS output
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OV7604C7

Low Power 32.768kHz SM Oscillator


The world's smallest 32.768kHz oscillator, the OV7604C7 is operable from 1.2-5.5V, and features tight calibration tolerance and ultra-low current consumption of 0.3μA typical. 

  • 32.768kHz
  • Ultra low power consumption
  • World's smallest 32.768kHz oscillator
  • Tight frequency tolerance
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MCSO1EL

5V Low Frequency CMOS Oscillator for Extreme Environments


The 5.0V MCSO1EL oscillator is available over low frequency range of 10.0~50.0kHz. Specially developed for extreme environments the MCSO1EL has optional -55 to +200°C operating temperature range, ideal for applications such as down-hole, avionics and geothermal. This oscillator also features excellent shock and vibration resistance.

  • 10.0 ~ 50.0kHz
  • Suitable for Avionics, Down-hole, Geothermal etc
  • Extreme temperature ranges up to 200°C
  • High stability & low ageing under extremes
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32.768kHz Oscillator Solutions - Product Comparison Table

Product Size (mm) Board area (mm2) Sample Lead Time Standard Frequency Tolerance @25°C Temperature Stability Industrial -40 to 85°C Military -55 to 125°C Extreme +200°C Auto AEC-Q200 Typical Current (uA) More Information
GAO-3201 2.5x2.0x0.8 5.0 Stock   ±25ppm (-40 to +85°C)  Available        108  View Product Details
GAO-3301 3.2x2.5x0.9 8.0 Stock   ±30ppm (-20 to +70°C)   Available       60  View Product Details 
GFO-3301 3.2x2.5x0.9 8.0 Stock ±5ppm
±20ppm
-90 +10ppm (wrt 25°C) (-20 to +70°C)   Available        1.5  View Product Details 
GHTXO 7.5x5.0x1.5 37.5 6-8 weeks   ±500ppm up to 250°C   Available Available Available      View Product Details 
OV7604C7 3.2x1.5x1.0 4.8 Stock ±20ppm -0.035ppm/°C2 ±10%   Available  Available     Available 0.3   View Product Details 
MCSO1EL 8.0x3.8x2.2 30.4 3-6 weeks   ±400ppm (-55 to +200°C)   Available Available  Available     100  View Product Details 

Real Time Clock Solutions for 32.768kHz Applications

RTC modules can save an engineer both time and project budget by providing a whole timing solution within one package, and some additionally functionality to boot. Many of our real time clocks feature user (static) RAM, alarm, calendar and additional CLKOUT functionality. You can find our recommendations for 32.768kHZ solutions here, or use our RTC quick comparison tools to find the best solution for your project here.

Recommended products for 32.768kHz Real Time Clock Module Requirements

RV1805C3

RTC I2C Bus Low Power


With ultra-low current consumption of only 17nA the RV1805C3 boasts the lowest power consumption of our entire range of real time clock modules. This RTC with miniature 3.7 x 2.5mm package and I2C bus interface offers excellent stability for an uncompensated part and incorporates many additional functions including alarm, timer, interupt, power management and trickle charge.

  • 1.0Hz ~ 32.768kHz
  • Extremely low current consumption
  • Miniature package with integrated crystal
  • Trickle charger, power management & switch
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RV8564C2

RTC I2C bus


Due to technology improvements the RV8564C2 is no longer recommended for new designs but is suitable as a drop in replacement for existing designs within a 5.0 x 3.2mm footprint which require I2C bus 2-wire serial interface and current consumption of up to 250nA. For new designs that require low power consumption please consider the smaller and more competitive RV1805C3 or RV4162C7 for designs where highly competitive pricing is paramount.

  • 1.0Hz ~ 32.768kHz
  • AEC-Q200 compliant option
  • Compliant with I2C-Bus interface (400kHz)
  • Built in crystal for adjustment-free operation
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RV3029C3

RTC I2C bus


Within a miniature 3.7 x 2.5mm footprint the RV3029C3 offers excellent time accuracy of ±3ppm (0.26s/day drift) and is temperature compensated, allowing for outstanding ±8ppm stability over extended operating temperature range of -40 to +125ºC. The RV3029C3 with I2C bus interface also features great shock and vibration resistance and is available with AEC-Q200 qualification (and full PPAP documentation) on request.

  • 1.0Hz ~ 32.768kHz
  • Temperature compensated accuracy
  • Miniature SM package
  • AEC-Q200 compliant option
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RV8523C3

RTC I2C bus Low Power


Ideal for engineers who require low power at supply voltages down to 1.2V, the RV8532C3 with I2C bus interface consumes current of only 130nA in time-keeping mode. Encased within a miniature 3.7 x 2.5mm footprint package, the RV8523C3 also features good shock and vibration performance and is available with AEC-Q200 qualification and full PPAP documentation on request.

  • 1.0Hz ~ 32.768kHz
  • Ultra low power consumption (130nA)
  • AEC-Q200 compliant option
  • Compliant with I2C-Bus interface (400kHz)
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RV4162C7

RTC I2C bus


The RV4162C7 ultra-miniature RTC module is perfect for cost-sensitive high volume applications where you need an all-in-one solution to help with space saving and procurement costs. The tiny 3.5 x 1.5mm footprint enables additional design space and, along with wide operating voltage range and good stability at room temperature, the RV4162C7 also features I2C bus interface, standard clock and calendar functionality, alarm setting and a watchdog function.

  • 1.0Hz ~ 32.768kHz
  • Ultra-miniature ceramic SMD RTC module
  • Compliant with I2C-Bus interface (400kHz)
  • AEC-Q200 compliant option
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RV8803C7

RTC I2C bus High Accuracy


A highly accurate RTC module with I2C bus interface providing timing accuracy of ±3ppm (or ±1.81 seconds per day), the RV8803C7 is also the world's smallest RTC module, with a package footprint of only 3.5 x 1.5mm. In addition to providing excellent frequency stability this real time clock module is also one of the lowest power temperature compensated RTC modules in the world with back up power requirement of only 240nA with automotive grade options available.

  • 1.0Hz ~ 32.768kHz
  • Temperature compensated
  • Ultra-low Power
  • I2C-Bus
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Real Time Clock (RTC) I2C Solutions

Product Size (mm) Board area (mm2) Sample Lead Time Standard Frequency Tolerance @25°C Temperature Stability Industrial -40 to 85°C Military -55 to 125°C Extreme +200°C Auto AEC-Q200 Typical Current (uA) More Information
RV1805C3 3.7x2.5x0.9 9.25 Stock  ±100ppm ±2ppm +25°C (0.17s/day)  Available     Available   0.06  View Product Details
RV8564C3 3.7x2.5x0.9 9.25 Stock ±20ppm  -0.035ppm/°C2 ±10%   Available     Available  0.25  View Product Details 
RV3029C3 3.7x2.5x0.9 9.25 Stock ±3ppm (0.26s/day) ±6ppm -40 to +85°C (0.52s/day)   Available      Available  0.80  View Product Details 
RV8523C3 3.7x2.5x0.9 9.25 Stock ±20ppm  -0.035ppm/°C2 ±10ppm   Available     Available  0.13  View Product Details 
RV4162C7 3.2x1.5x0.8 4.8 Stock ±20ppm -0.035ppm/°C2 ±10%   Available       Available 0.35   View Product Details 
RV8803C7 3.2x1.5x0.8 4.8 Stock ±3ppm (0.26s/day) ±3ppm -40 to +85°C (0.26s/day) Available     Available 0.24 View Product Details