PY291A
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input Timing Reference Level
Output Timing Reference Level
Output Load
GND to 3.0V
3ns
1.5V
1.5V
See Figures 1 and 2
Figure 1. Output Load
* including scope and test fixture.
Note:
Because of the ultra-high speed of the PY291A, care must be taken
when testing this device; an inadequate setup can cause a normal
functioning part to be rejected as faulty. Long high-inductance leads that
Figure 2. Thevenin Equivalent
cause supply bounce must be avoided by bringing the V
CC
and ground
planes directly up to the contactor fingers. A 0.01 µF high frequency
capacitor is also required between V
CC
and ground.
Document #
EPROM101
REV OR
Page 5 of 9
PYRAMID [ PYRAMID SEMICONDUCTOR CORPORATION ]
