CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Product Description
The KX321 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 10µA. The output clock
signal is compatible with LVCMOS/LVTTL logic
levels. The device, available on tape and reel,
is contained in a 3.2 x 2.5mm surface-mount
ceramic package.
Pin Functions:
Pin
Function
1
2
3
4
OE Function
Ground
Clock Output
V
DD
Applications
•
Real-Time Clock Oscillator where low
current and tight stability are needed
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Part Ordering Information:
KX 321
V
A
I S 032.768000
B
C
D
Voltage:
Stability and Temp Range:
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
F = +/-20 ppm 0/+70°C
G = +/-25 ppm 0/+70°C
H = +/-25 ppm 0/+85°C
I = +/-25 ppm -20/+85°C
Z = Reference Design
Internal #:
Frequency:
1=+3.3V
2=+2.5V
3=+1.8V
B=+3.0V
0~9
FFF.FFFFFF
kHz, “3 digits/decimal/6 digits” format
Following the above format, SaRonix-eCera part numbers will be assigned upon
confirmation of exact customer requirements.
SaRonix-eCera™ is a Pericom® Semiconductor company
14-0034
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.saronix-ecera.com
All specifications are subject to change without notice.
KX321
REV C
08/28/2014
1
CMOS 32.768kHz
KX321
Ultra Low Current KX Series Crystal Oscillator
3.2 x 2.5mm
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output Frequency
+1.71
Supply Voltage
+2.25
+2.85
+3.0
Supply Current, Output Enabled
Supply Current, Standby Mode
Frequency Stability
Operating Temperature Range
Output Logic 0, V
OL
Output Logic 1, V
OH
Output Load
Duty Cycle
Rise and Fall Time
Start-up time
45
0.9 V
DD
-40
32.768
+1.8
+2.5
+3.0
+3.3
10
+1.89
+2.75
+3.15
+3.6
15
0.5
±50
+85
0.1 V
DD
15
55
35
50
10
kHz
V
V
V
V
µA
µA
ppm
C
V
V
pF
%
ns
ms
See Note 2
measured 50% of V
DD
measured 20/80% of V
DD
At 15pF load
Output Hi-Z
See part ordering options, and note 1
See part ordering options
See part ordering options
Notes:
1. As specified. 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 specifications other than those listed, please contact sales.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input Voltage (pin 1), Output Enable
Input Voltage (pin 1), Output Disable (low power standby)
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Embedded System
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