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Ecliptek is one of the ILSI America brands, which also include:

ILSI America MMD Oscilent

EMTB81 Series Oscillator
Temperature Compensated MEMS Clock Oscillators TCMO LVCMOS (CMOS) 1.8Vdc 4 Pad 0.8mm x 1.5mm Chip Scale Package (CSP)

Revision  A  07/14/2016

Electrical Specifications

Nominal Frequency 32.768kHz
Frequency Stability Inclusive of Operating Temperature Range, Output Load Change (±20%), and Reflow, at VDD=1.8VDC
±5.0ppm Maximum
Frequency Stability vs. Frequency Tolerance Measured at 25°C ±2°C, at VDD=1.8VDC, Post Reflow
±5.0ppm Maximum
Frequency Stability vs. Input Voltage ±0.75ppm Maximum (±10%)
Frequency Stability vs. Aging ±1ppm/Year Maximum (at 25°C)
Operating Temperature Range 0°C to +70°C
-40°C to +85°C
Supply Voltage 1.8VDC ±10%
Core Operating Current 0.99µA Typical (at 25°C), 1.52µA Maximum
Output Stage Operating Current 0.065µA/Vpp Typical, 0.125µA/Vpp Maximum
Input Current No Load, Nominal VDD
1.1µA Typical (at 25°C), 1.8µA Maximum
Output Voltage Logic High (VOH) IOH= -10µA
90% of VDD Minimum
Output Voltage Logic Low (VOL) IOL= +10µA
10% of VDD Maximum
Rise/Fall Time Measured at 10% to 90% of waveform
100nSec Typical, 200nSec Maximum
Duty Cycle Measured at 50% of waveform
50 ±2(%)
Load Drive Capability 15pF Maximum
Output Logic Type CMOS
Peak to Peak Jitter (tPK) 2.5µSec Maximum
Period Jitter (RMS) Measured at 25°C
33nSec Typical
Power Supply Ramp Measured at 0VDC to 90% of VDD
100mSec Maximum
Start Up Time Measured at Nominal VDD
180mSec Typical, 380mSec Maximum (at -40°C to +85°C)
180mSec Typical, 350mSec Maximum (at 0°C to +70°C)
Storage Temperature Range -55°C to +125°C