Intel Celeron Processor in the 478-Pin Package at 1.80 GHz Datasheet

Datasheet 33
Intel
®
Celeron
®
Processor in the 478-Pin Package
The circuit used to test the AC specifications is shown in Figure 4.
Figure 4. AC Test Circuit
600 mils, 42 ohms, 169 ps/in
2.4nH
1.2pF
V
CC
V
CC
Rload
Rload = 50 ohms
AC Timings test measurements made here.
Figure 5. TCK Clock Waveform
*V2
*V3
*V1
T
r
T
p
T
f
CLK
T
r
= T56, T58 (Rise Time)
T
f
= T57, T59 (Fall Time)
T
p
= T55 (Period)
V3: TCK is referenced to 0.5 * Vcc.
V1, V2: For rise and fall times, TCK is measured between 20% to 80% points on the waveform.