AM79C961A_00 Datasheet, PDF (74/206 Pages) Advanced Micro Devices – PCnet™-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA

External Crystal Characteristics
Parameter
Min Nom Max Unit
1. Parallel Resonant Frequency
20
MHz
2. Resonant Frequency Error
(CL = 20 pF)
–50
+50 PPM
3.Change in Resonant
Frequency With Respect
To Temperature
–40
(0° – 70° C; CL = 20 pF)*
+40 PPM
4. Crystal Capacitance
20 pF
5. Motional Crystal Capacitance
(C1)
0.022
pF
6. Series Resistance
25 Ω
7. Shunt Capacitance
7 pF
8. Drive Level
TBD mW
Requires trimming crystal spec; no trim is 50 ppm total
74
Am79C961A