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Part # 011603
Description
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

1
All specifications are subject to change without notice. KX201 REV A 08/01/14
SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-232-9100 TW: +886-3-4518888 www.saronix-ecera.com
CMOS 32.768kHz
Ultra Low Current KX Series Crystal Oscillator
2.0 x 1.6mm
KX201
Product Features
AT Cut 32.768 kHz XO
CMOS compatible logic levels
Ultra low active current (< 30µA)
Very tight temperature stability
Designed for standard reflow and washing
techniques
Pb-free and RoHS/Green compliant
Product Description
The KX201 Series real time clock oscillator
achieves superb stability over a broad range
of operating conditions. It utilizes Pericom
proprietary technology to achieve ultra low
current less than 30µA. The output clock
signal is compatible with LVCMOS/LVTTL logic
levels. The device, available on tape and reel,
is contained in a 2.0 x 1.6mm surface-mount
ceramic package.
Applications
Real-Time Clock Oscillator where low current
and tight stability are needed
Package: (Scale: none; Dimensions are in mm)
Pin Functions:
Pin Function
1 OE Function
2 Ground
3 Clock Output
4 V
DD
2.0 x 1.6mm Ceramic SMD
Part Ordering Information:
Following the above format, Saronix-eCera part numbers will be assigned upon
confirmation of exact customer requirements.
Recommended Land Pattern:
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
KX 201 V I S 032.768000
A
B
D
Stability Temp Range
A = +/-20 ppm -20/+70°C
B = +/-25 ppm -20/+70°C
C = +/-50 ppm -20/+70°C
D = +/-25 ppm -40/+85°C
E = +/-50 ppm -40/+85°C
Z = Reference Design
Stability and Temp Range:
Frequency:
FFF.FFFFFF
kHz, “3 digits/decimal/6 digits” format
Voltage:
1=+3.3V
2=+2.5V
3=+1.8V
C
Internal #:
0 ~ 9
14-0021
2
All specifications are subject to change without notice. KX201 REV A 08/01/14
SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-232-9100 TW: +886-3-4518888 www.saronix-ecera.com
CMOS 32.768kHz
Ultra Low Current KX Series Crystal Oscillator
2.0 x 1.6mm
KX201
Output Enable / Disable Function
Parameter Min. Typ. Max. Units Notes
Input Voltage (pin 1), Output Enable 0.7 V
DD
V or open
Input Voltage (pin 1), Output Disable (low power standby) 0.3 V
DD
V Output is Hi-Z
Internal Pullup Resistance 100
Output Disable Delay 100 ns
Output Enable Delay 10 ms
Electrical Performance
Parameter Min. Typ. Max. Units Notes
Output Frequency 32.768 kHz
Supply Voltage
+1.71 +1.8 +1.89 V
See part ordering options+2.25 +2.5 +2.75 V
+3.0 +3.3 +3.6 V
Supply Current, Output Enabled 25 30 µA With load
Supply Current, Standby Mode 0.5 µA Output Hi-Z
Frequency Stability ±50 ppm See part ordering options, and note 1
Operating Temperature Range -40 +85 C See part ordering options
Output Logic 0, V
OL
0.1 V
DD
V
Output Logic 1, V
OH
0.9 V
DD
V
Output Load 15 pF See Note 2
Duty Cycle 45 55 % measured 50% of V
DD
Rise and Fall Time
40 50 ns measured 20/80% of V
DD
= 1.8V
30 40 ns measured 20/80% of V
DD
= 2.5V
20 30 ns measured 20/80% of V
DD
= 3.3V
Start-up time 10 ms
Notes:
1. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C),
aging (1 year at 25°C average effective ambient temperature), shock and vibration.
2. Forspecicationsotherethanthoselisted,pleasecontactsales.
Absolute Maximum Ratings
Parameter Min. Typ. Max. Units Notes
Storage Temperature -55 +125 °C
For the latest product information visit: http://www.pericom.com/products/timing/oscillators/KX201/
For test circuit go to: http://www.pericom.com/pdf/sre/tc_hcmos2.pdf
For soldering reflow profile and reliability test ratings go to: http://www.pericom.com/pdf/sre/reflow.pdf
For tape and reel information go to: http://www.pericom.com/pdf/sre/tr_2016_xo.pdf
14-0021