TS68882
Test Conditions Specific
to the Device
Test Load
The applicable loading network shall be as defined in column “Test conditions” of Table
2, referring to the loading network number as shown in Figure 5.
Figure 5. Test Loads
AC Electrical Specification
Definitions
The AC specifications presented consist of output delays, input setup and hold times,
and signal skew times. All signals are specified relative to an appropriate edge of the
clock input and, possibly, relative to one or more other signals.
The measurement of the AC specifications is defined by the waveforms shown in Figure
6. In order to test the parameters guaranteed inputs must be driven to the voltage levels
specified in Figure 6. Outputs are specified with minimum and/or maximum limits, as
appropriate, and are measured as shown. Inputs are specified with minimum and, an
appropriate maximum setup and hold times, and are measured as shown. Finally, the
measurement for signal-to-signal specifications are also shown.
Note that the testing levels used to verify conformance to the AC specifications does not
affect the guaranteed DC operation of the device specified in the DC electrical
characteristics.
13
2119A–HIREL–04/02
ATMEL [ ATMEL ]
