MK74CB163RTR View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
Manufacturer
MK74CB163RTR Datasheet PDF : 5 Pages
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PRELIMINARY INFORMATION
MK74CB163
1 to 16 PECL to CMOS Buffalo™ Clock Driver
Maximum Speed
The maximum speed at which the chip can operate can be limited by power dissipation in the package.
Graph 1 shows the operating frequency plotted against load capacitance per pin for a die temperature of
125 °C. This is at VDD = 3.3 V, 70 °C and with 33 Ω series termination resistors. The termination
resistors are essential because they allow a large proportion of the total power to be dissipated outside the
package. Reducing or eliminating the series termination will cause an increase in die temperature. It is not
recommended to operate the chip at die temperatures greater than 125 °C. Also note that the load
capacitance per pin must include PC board parasitics such as trace capacitance. The MK74CB163 can safely
operate up to 156 MHz with all pins loaded at 15 pF.
300
250
200
150
100
50
0
0
Do not operate in this area .
20
40
60
80
Load Capacitance/per pin (pF)
Graph 1
Maximum Speed
MDS 74CB163 A
4
Revision 112399
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408)295-9800tel • www.icst.com
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