AMD-K6 Datasheet, PDF (249/346 Pages) Advanced Micro Devices – AMD-K6 Processor

20695H/0—March 1998
Preliminary Information
AMD-K6^® Processor Data Sheet
13.3
Pin Connection Requirements
For proper operation, the following requirements for signal pin
connections must be met:
s Do not drive address and data signals into large capacitive
loads at high frequencies. If necessary, use buffer chips to
drive large capacitive loads.
s Leave all NC (no-connect) pins unconnected.
s Unused inputs should always be connected to an
appropriate signal level.
• Active Low inputs that are not being used should be
connected to V_CC3 through a 20k-Ω pullup resistor.
• Active High inputs that are not being used should be
connected to GND through a pulldown resistor.
s Reserved signals can be treated in one of the following ways:
• As no-connect (NC) pins, in which case these pins are left
unconnected
• As pins connected to the system logic as defined by the
industry-standard Pentium interface (Socket 7)
• Any combination of NC and Socket 7 pins
s Keep trace lengths to a minimum.
Chapter 13
Power and Grounding
231