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KX2512E2032.768000

型号：

KX2512E2032.768000

品牌：

PERICOM[ PERICOM SEMICONDUCTOR CORPORATION ]

页数：

2 页

PDF大小：

635 K

下载PDF手册
Ultra Low Current KX Series Crystal Oscillator  
2.5 x 2.0mm  
KX251  
CMOS 32.768kHz  
2.5 x 2.0mm Ceramic SMD  
Package: (Scale: none; Dimensions are in mm)  
Product Features  
Recommended Land Pattern:  
• AT Cut 32.768 kHz XO  
• CMOS compatible logic levels  
• Ultra low active current (< 10µA)  
• Very tight temperature stability  
• Designed for standard reflow and washing  
techniques  
• Pb-free and RoHS/Green compliant  
Product Description  
Pin Functions:  
The KX251 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 2.5 x 2.0mm surface-mount  
ceramic package.  
Pin  
Function  
OE Function  
Ground  
1
2
3
Clock Output  
VDD  
4
Part Ordering Information:  
Applications  
• Real-Time Clock Oscillator where low current  
KX 251  
V
I S 032.768000  
B
C
D
A
and tight stability are needed  
Stability and Temp Range:  
Voltage:  
Internal #:  
0 ~ 9  
Frequency:  
FFF.FFFFFF  
kHz, “3 digits/decimal/6 digits” format  
Stability  
Temp Range  
1=+3.3V  
2=+2.5V  
3=+1.8V  
B=+3.0V  
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  
Following the above format, Saronix-eCera part numbers will be assigned upon  
confirmation of exact customer requirements.  
SaRonix-eCera™ is a Pericom® Semiconductor company  
•
US: +1-408-435-0800 TW: +886-3-4518888  
•
www.saronix-ecera.com  
14-0033  
All specifications are subject to change without notice.  
KX251 REV C  
8/27/2014  
1
KX251  
CMOS 32.768kHz  
Ultra Low Current KX Series Crystal Oscillator  
2.5 x 2.0mm  
Electrical Performance  
Parameter  
Min.  
Typ.  
32.768  
+1.8  
+2.5  
+3.0  
+3.3  
10  
Max.  
Units  
kHz  
V
Notes  
Output Frequency  
+1.71  
+2.25  
+2.85  
+3.0  
+1.89  
+2.75  
+3.15  
+3.6  
V
Supply Voltage  
See part ordering options  
V
V
Supply Current, Output Enabled  
Supply Current, Standby Mode  
Frequency Stability  
Operating Temperature Range  
Output Logic 0, VOL  
Output Logic 1, VOH  
Output Load  
15  
µA  
µA  
ppm  
C
At 15pF load  
0.5  
Output Hi-Z  
±50  
See part ordering options, and note 1  
See part ordering options  
-40  
+85  
0.1 VDD  
V
0.9 VDD  
45  
V
15  
55  
50  
10  
pF  
%
See Note 2  
Duty Cycle  
measured 50% of VDD  
measured 20/80% of VDD  
Rise and Fall Time  
35  
ns  
Start-up time  
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.ꢀ Forꢀspecificationsꢀothereꢀthanꢀthoseꢀlisted,ꢀpleaseꢀcontactꢀsales.  
Output Enable / Disable Function  
Parameter  
Min.  
Typ.  
Max.  
Units  
V
Notes  
Input Voltage (pin 1), Output Enable  
0.7 VDD  
or open  
Output is Hi-Z  
Input Voltage (pin 1), Output Disable (low power standby)  
Internal Pullup Resistance  
0.3 VDD  
V
100  
kΩ  
ns  
Output Disable Delay  
100  
10  
Output Enable Delay  
ms  
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/KX251/  
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_2520_xo.pdf  
SaRonix-eCera™ is a Pericom® Semiconductor company  
•
US: +1-408-435-0800 TW: +886-3-4518888  
•
www.saronix-ecera.com  
14-0033  
All specifications are subject to change without notice.  
KX251 REV C  
8/27/2014  
2
厂商 型号 描述 页数 下载

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JAE

 		KX20-100R-F2LT-A1HE [ Telecom and Datacom Connector, 100 Contact(s), Female, Right Angle, Solder Terminal, LEAD FREE ] 1 页

JAE

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