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Low Power 32.768kHz SM Oscillator

  • Ultra low power consumption
  • Fully ceramic 32.768kHz oscillator
  • Tight frequency tolerance
  • Industrial and extended temperature ranges
  • High shock and vibration resistance
Configurable Options
ParameterOption Code
Calibration tolerance
Operating temperature range
Quantity / Special Request

Please specify the quantity you require below.

The OV7604C7 is supplied on tape and reel. 1k or 3k pcs per reel are the standard T&R pack sizes for this product. Partial quantities may be supplied on tape (no reel), or in bulk.

Product Description

An ultra-miniature 32.768kHz oscillator, the OV7604C7 has a 3.2 x 1.5 x 1.0mm fully ceramic package, and is operable from 1.2-5.5V, featuring tight calibration tolerance and ultra-low current consumption of 0.3μA typical.

The OV7604C7 has ±20ppm calibration tolerance, with other values available on request. This oscillator also features low ageing characteristics of just ±3ppm first year maximum at 25°C, and is available with AEC-Q200 qualification upon request.

The OV7604C7 also features good shock and vibration resistance and is available over extended -40 to +125°C operating temperature range.

Frequency 32.768kHz
Dimensions 3.2 x 1.5 x 1.0mm
Turnover temperature (T0) +25°C ±5°C
Frequency / temp coefficient -0.035ppm/°C2 ±10%
Storage temperature range -55 to +125°C
Supply voltage (VDD) Operable from 1.2 ~ 5.5V
Supply current (backup mode) 0.3μA typ, 0.5μA max
(VDD 3.0V, output disabled)
Logic levels ‘0’ level = +0.4V max
‘1’ level = VDD-0.4V min
Waveform symmetry 40:60 max @ 50%VDD
Driving ability CMOS
Voltage coefficient ±1.5ppm/V max
Rise / fall time 70ns typ, 100ns max
Start up time 500ms max @ 25°C
Enable / disable function Control via pad 3
Ageing ±3ppm max first year @ 25°C
Shock resistance ±5ppm, 5,000g, 0.3ms ½-sine
Vibration resistance ±5ppm, 20g rms 10.0 ~ 2,000Hz
Soldering condition Reflow, 260°C, 20 sec max
Net mass 12.3mg
Package Drawing
Package footprint and pad configuration drawing for the Golledge OV7604C7 Oscillator showing full dimensions.
Ordering Information

To request a quotation for the OV7604C7 please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.

CAD Models

Our OV7604C7 is included in the following design libraries. Click to download the library of your choice.

Enable / Disable Function
Input (pad 3)Output (pad 1)
'1' level Enabled
'0' level Disabled

Note: Pad 3 should not be allowed to float

Tape & Reel Specification
Tape and Reel specifications for the GTXO-C77V

A:178 / B:12 / C:3.5 / D:1.8 / E:4 / F:1.1 / G:61 / H:21

Handling & Storage

ESD-HBM-1A Human Body Model (HBM) 1A (250V to <500V)

MSL1 Moisture Sensitivity Level (MSL): 1 (or not applicable)


Ceramic base and lid


Please refer to our DOCUMENTS section for more information.

PbFree Lead-free (< 0.1% by weight )

RoHS compliant no exempts - PS Docs Version RoHS compliant with no exemptions.

REACH - PS Docs Version REACH compliant.

Conflict minerals - PS Docs version Free of conflict minerals.

Halogen free - PS Docs version Free from halogens.

Ozone depleting - PS Docs version Free from ozone-depleting substances.

Block Diagram
An image of OV7604C7, an ultra-miniature 32.768kHz oscillator with low current consumption and optional AEC-Q200 qualification.