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MK3235-01SLFTR PDF预览

MK3235-01SLFTR

更新时间: 2023-05-15 00:00:00
品牌 Logo 应用领域
艾迪悌 - IDT 光电二极管
页数 文件大小 规格书
4页 67K
描述
Clock Generator, 14.3MHz, PDSO16, SOIC-16

MK3235-01SLFTR 数据手册

 浏览型号MK3235-01SLFTR的Datasheet PDF文件第1页浏览型号MK3235-01SLFTR的Datasheet PDF文件第3页浏览型号MK3235-01SLFTR的Datasheet PDF文件第4页 
MK3235  
Handheld System Clock Synthesizer  
ICR O CLOC K  
Pin Assignment  
1
16 GND  
X2  
15  
14  
13  
12  
11  
10  
9
X1  
VDD32  
VDD  
2
3
GND  
VDD  
4
5
PD14  
GND  
14.3M  
GND  
6
7
COMMCLK  
32K  
PD  
8
GND  
PDCOMM  
Pin Descriptions  
Number  
Name  
Type Description  
1
2
X2  
O
I
Crystal connection. Connect to 32.768 kHz crystal.  
Crystal connection. Connect to 32.768 kHz crystal.  
X1  
3
VDD32  
VDD  
P
P
P
O
O
I
Separate power supply connection for 32.768kHz clock. Will operate to 2.0V.  
Connect to +3.3V or +5V. Must be the same voltage as pin 14.  
Connect to ground.  
4
5
GND  
6
COMMCLK  
32K  
Serial communications (1.84 on -01 version, or 3.68MHz on -02 version) clock output.  
32.768 kHz square wave clock output.  
7
8
PDCOMM  
GND  
Power Down serial Communications and 14.3M clock outputs (stop low) when low.  
Connect to ground.  
9
P
I
10  
11  
12  
13  
14  
15  
16  
PD  
Powers Down everything but 32kHz oscillator internally. 32kHz output buffer is off.  
14.318 MHz output clock.  
14.3M  
GND  
O
P
I
Connect to ground.  
PD14  
VDD  
Power Down 14.318MHz clock output (stops low) when low.  
Connect to +3.3V or +5V. Must be the same voltage as pin 4.  
Connect to ground.  
P
P
P
GND  
GND  
Connect to ground.  
Type: I = Input, O = output, P = power supply connection  
Power Down status: Output clocks will stop in a low state when powered down  
External Components  
The MK3235 requires a minimum number of external components for proper operation. Decoupling  
capacitors of 0.1µF should be connected between VDD and GND, and VDD32 and GND, as close to the  
MK3235 as possible. A series resistor should be used on the VDD32 supply. A series termination resistor of  
33Wmay be used for each clock output, except the 32.768 kHz. For tuning the real time clock output, use  
a 32.768 kHz crystal with a load capacitance of 12.5pF, and connect a 20pF±5% (NPO dielectric)  
capacitor between each crystal pin and ground. The 32.768 kHz crystal must be connected as close to the  
chip as possible. Consult MicroClock for a recommended external circuit schematic.  
MDS 3235 D  
2
Revision 092397  
Printed 11/16/00  
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com  

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