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MK1449STR Datasheet(PDF) 2 Page - Integrated Circuit Systems |
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MK1449STR Datasheet(HTML) 2 Page - Integrated Circuit Systems |
2 / 4 page S1 S0 CLK1 CLK2 0 0 test test 0 1 40 25 1 0 49.152 12.288 1 1 x1.25 Reference MK1449B Sound/SCSI+Fast Ethernet Clock MDS 1449B C 2 Revision 120799 Printed 11/15/00 Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com Pin Assignment 1 8 2 3 4 7 6 5 X1/ICLK VDD GND CLK2 X2 S1 S0 CLK1 Number Name Type Description 1 X1/ICLK I Crystal connection or clock input. Connect to a 14.31818MHz parallel resonant crystal. 2 VDD P Connect to +3.3V or +5V. 3 GND P Connect to ground. 4 CLK2 O Clock 2 output per Table above. 5 CLK1 O Clock 1 output per Table above. 6 S0 I Select 0 for output clocks. Connect to GND or VDD. See table above. 7 S1 I Select 1 for output clocks. Connect to GND or VDD. See table above. 8 X2 O Crystal connection to a 14.31818 MHz crystal. Leave unconnected for clock input. Pin Descriptions Key: I = Input, O = output, P = power supply connection Clock Decoding Table (MHz) 0 = connect directly to ground. 1 = connect directly to VDD. In the 1,1 mode, crystals or clocks from 5 to 27 MHz can be used as an input. |
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