EMRB81C-32.768K
REGULATORY COMPLIANCE
2011/65 +
2015/863
(Data Sheet downloaded on Feb 19, 2018)
174 SVHC
ITEM DESCRIPTION
MEMS Clock Oscillators LVCMOS (CMOS) 1.8Vdc 4 Pad 0.8mm x 1.5mm Chip Scale Package (CSP) 32.768KHz ±100ppm over
-40°C to +85°C
ELECTRICAL SPECIFICATIONS
Nominal Frequency
Frequency Tolerance/Stability
Frequency Tolerance
Aging at 25°C
Supply Voltage
Core Operating Current
Output Stage Operating Current
Input Current
Output Voltage Logic High (Voh)
Output Voltage Logic Low (Vol)
Rise/Fall Time
Duty Cycle
Load Drive Capability
Output Logic Type
Period Jitter (RMS)
Power Supply Ramp
Start Up Time
Storage Temperature Range
32.768KHz
±100ppm Maximum over -40°C to +85°C (Inclusive of all conditions: Calibration Tolerance at 25°C, Frequency Stability
over the Operating Temperature Range, Supply Voltage Change, and Output Load Change)
±20ppm Maximum (Measured at 25°C ±2°C, at Vdd=1.8Vdc, Post Reflow, with board level underfill)
±1ppm Maximum First Year
1.8Vdc ±10%
0.9µA Typical (at 25°C), 1.4µA Maximum
0.065µA/Vpp Typical, 0.125µA/Vpp Maximum
1.0µA Typical (at 25°C), 1.8µA Maximum (No Load, Nominal Vdd)
90% of Vdd Minimum (IOH = -10µA)
10% of Vdd Maximum (IOL = +10µA)
100nSec Typical, 200nSec Maximum (Measured from 10% to 90% of waveform)
50 ±2(%) (Measured at 50% of waveform)
15pF Maximum
CMOS
35nSec Typical (Measured at 25°C)
100mSec Maximum (Measured at 0Vdc to 90% of Vdd)
180mSec Typical, 300mSec Maximum (at 25°C)
450mSec Maximum (over Operating Temperature Range) (Measured at Nominal Vdd)
-55°C to +125°C
ENVIRONMENTAL & MECHANICAL SPECIFICATIONS
ESD Susceptibility
Flammability
Mechanical Shock
Moisture Sensitivity
Solderability
Temperature Cycling
Vibration
JESD22-A114, HBM, 3000V
UL94-V0
MIL-STD-883, Method 2002, Condition E, 10,000G
J-STD-020, MSL 1
MIL-STD-883, Method 2003
JESD22-A104, Condition G
MIL-STD-883, Method 2007, Condition C, 70G
www.ecliptek.com | Specification Subject to Change Without Notice | Revision A 07/08/2016 | Page 1 of 6
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
EMRB81C-32.768K
MECHANICAL DIMENSIONS (all dimensions in millimeters)
PIN
1
2
CONNECTION
Ground
Output
Supply Voltage
Ground
0.84
±0.02
MARKING
ORIENTATION
0.60
MAX
2
1.00
±0.05
1
0.41 ±0.05
4
3
0.315
±0.015 (X4)
3
4
LINE MARKING
1
XX
XX=Ecliptek Manufacturing
Identifier
XXX
XXX=Ecliptek
Manufacturing Identifier
(continued)
1.54
±0.02
2
Suggested Solder Pad Layout
All Dimensions in Millimeters
0.41 (X2)
DIA 0.25 (X4)
1.00 (X2)
Solder Land
(X4)
All Tolerances are ±0.1
www.ecliptek.com | Specification Subject to Change Without Notice | Revision A 07/08/2016 | Page 2 of 6
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
EMRB81C-32.768K
Test Circuit for CMOS Output
Oscilloscope
Frequency
Counter
+
+
Power
Supply
_
+
Voltage
Meter
_
Current
Meter
_
Supply
Voltage
(V
DD
)
Probe
(Note 2)
Output
0.01µF
(Note 1)
0.1µF
(Note 1)
Ground
Ground
C
L
(Note 3)
Note 1: An external 0.01µF ceramic bypass capacitor in parallel with a 0.1µF high frequency ceramic bypass
capacitor close (less than 2mm) to the package ground and supply voltage pin is recommended.
Note 2: A low input capacitance (<12pF), 10X Attentuation Factor, High Impedance (>10Mohms), and
High bandwidth (>300MHz) passive probe is recommended.
Note 3: Capacitance value CL includes sum of all probe and fixture capacitance. See applicable specification sheet
for ‘Load Drive Capability’.
www.ecliptek.com | Specification Subject to Change Without Notice | Revision A 07/08/2016 | Page 4 of 6
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
EMRB81C-32.768K
Recommended Solder Reflow Methods
High Temperature Infrared/Convection
T
S
MAX to T
L
(Ramp-up Rate)
Preheat
- Temperature Minimum (T
S
MIN)
- Temperature Typical (T
S
TYP)
- Temperature Maximum (T
S
MAX)
- Time (t
S
MIN)
Ramp-up Rate (T
L
to T
P
)
Time Maintained Above:
- Temperature (T
L
)
- Time (t
L
)
Peak Temperature (T
P
)
Target Peak Temperature (T
P
Target)
Time within 5°C of actual peak (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (t)
Moisture Sensitivity Level
Additional Notes
3°C/Second Maximum
150°C
175°C
200°C
60 - 180 Seconds
3°C/Second Maximum
217°C
60 - 150 Seconds
260°C Maximum for 10 Seconds Maximum
250°C +0/-5°C
20 - 40 Seconds
6°C/Second Maximum
8 Minutes Maximum
Level 1
Temperature shown are applied to body of device.
www.ecliptek.com | Specification Subject to Change Without Notice | Revision A 07/08/2016 | Page 5 of 6
Ecliptek, LLC
5458 Louie Lane, Reno, NV 89511
1-800-ECLIPTEK or 714.433.1200
Analogue and Mixed Signal
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