mk1442 ETC-unknow, mk1442 Datasheet
mk1442
Available stocks
Related parts for mk1442
mk1442 Summary of contents
Page 1
... Description The MK1442/3 are the ideal way to generate clocks for desktop computer motherboards and LAN workstations. Using analog Phase-Locked Loop (PLL) techniques, the devices accept a 14.318 MHz crystal input to produce multiple output clocks up to 100 MHz. They provide 2XCPU, CPU, floppy controller, keyboard, system, SCSI and Ethernet clocks. The MK1442/3 are perfect for new Pentium™ ...
Page 2
... Note 5: The TI inputs are internally held at mid-level, so they cannot drift high or low. Crystal and Capacitor Selection for Ethernet Accuracy The MK1442/3 requires external crystals between the X1 and X2 pins and ground, as shown on the block diagram on page 1. For an accurate Ethernet frequency of 20.000 MHz, a 14.31818 MHz ±50 ppm, parallel resonant crystal with a load capacitance of 16pF is recommended, along with 22 pF ± ...
Page 3
... VDD=3.3V, IOH=-8mA 2.4 VDD=3.3V, IOL=8mA No Load, 80 MHz Each output 0-70°C, note 2 -1 0.8 to 2.0V 2.0 to 0.8V 1.5V 67MHz 47.5 At 1.5V 45 50-80 MHz clocks Rising edges at 1.5V -250 VDD=3 VDD=3 VDD=3 VDD=3 MK1442/MK1443 Typical Maximum Units 7 V VDD+0 °C 260 °C 150 ° ...
Page 4
... Integrated Circuit Systems, Inc. • 525 Race Street • San Jose • CA • 95126 •(408)297-1201tel • www.icst.com SCSI and Ethernet Clock Source 45° c Marking Keyboard frequency MK1442-01S 12 MHz MK1442-02S 8 MHz MK1442-03S 16 MHz MK1443-01S 12 MHz MK1443-02S 8 MHz MK1443-03S 16 MHz MK144x-0xS x 4 MK1442/MK1443 ...