Electrical Data; Electrical Characteristics; Maximum Electrical Ratings - Compaq 21264 Hardware Reference Manual

This chapter describes the electrical characteristics of the 21264/EV67 and its interface
pins. The chapter contains both ac and dc electrical characteristics and power supply
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/EV67.
Table 9–1 Maximum Electrical Ratings
Characteristics
Storage temperature
Junction temperature
Maximum dc voltage on signal pins
Minimum dc voltage on signal pins
Maximum power @ indicated VDD
for the following frequencies:
Notes:
Alpha 21264/EV67 Hardware Reference Manual
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.

Electrical Data

Ratings
–55 C to +125 C (–67 F to 257 F)
0 C to 100 C (32 F to 212 F)
VDD + 400 mV
VSS – 400 mV
Frequency Peak Power
600 MHz 73 W @ 2.1 V
667 MHz 80 W @ 2.1 V
700 MHz 85 W @ 2.1 V
733 MHz 88 W @ 2.1 V
750 MHz 90 W @ 2.1 V
Electrical Data
9
9–1