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21264/EV68A Hardware Reference Manual
Electrical Data 9–1
9
Electrical Data
This chapter describes the electrical characteristics of the 21264/EV68A and its inter-
face pins. The chapter contains both ac and dc electrical characteristics and power sup-
ply considerations, and is organized as follows:
• Electrical characteristics
• DC characteristics
• Power supply sequencing
• AC characteristics
9.1 Electrical Characteristics
Table 9–1 lists the maximum electrical ratings for the 21264/EV68A.
Notes: Stresses above those listed under the given maximum electrical ratings may
cause permanent device failure. Functionality at or above these
limits is not implied. Exposure to these limits for extended periods of time
may affect device reliability.
Power data is preliminary and based on measurements from a limited set of
material.
Table 9–1 Maximum Electrical Ratings
Characteristics Ratings
Storage temperature –55° C to +125° C (–67° Fto257° F)
Junction temperature 0° C to 100° C(32° F to 212° F)
Open-drain driver interface 2.0 V
Push-pull driver interface 1.7 V
Minimum dc voltage on signal pins VSS – 400 mV
Maximum power @ indicated VDD
for the following frequencies:
Frequency Peak Power
750 MHz 60 W @ 1.7 V
833 MHz 67 W @ 1.7 V
875 MHz 70 W @ 1.7 V
940 MHz 75 W @ 1.7 V