21152 Datasheet, PDF (137/148 Pages) Intel Corporation – PCI-to-PCI Bridge

Electrical Specifications
15
This chapter specifies the following electrical behavior of the 21152:
• PCI electrical conformance
• Absolute maximum ratings
• dc specifications
• ac timing specifications
15.1
PCI Electrical Specification Conformance
The 21152 PCI pins conform to the basic set of PCI electrical specifications in the PCI Local Bus
Specification, Revision 2.1. See that document for a complete description of the PCI I/O protocol
and pin ac specifications.
15.2 Absolute Maximum Ratings
The 21152 is specified to operate at a maximum frequency of 33 MHz at a junction temperature (T_j)
not to exceed 125°C. Table 15-1 lists the absolute maximum ratings for the 21152. Stressing the
device beyond the absolute maximum ratings may cause permanent damage. These are stress ratings
only. Operating beyond the functional operating range is not recommended, and extended exposure
beyond the functional operating range may affect the reliability.
Table 15-1. Absolute Maximum Ratings
Parameter
Minimum
T_j
Supply voltage, V_cc
Maximum voltage applied to signal pins
Maximum power, P_WC
Storage temperature range, T_stg
—
—
—
—
–55°C
Table 15-2 lists the functional operating range.
Table 15-2. Functional Operating Range
Parameter
Minimum
Supply voltage, V_cc
3.0 V
Operating ambient temperature, T_a 0°C
Maximum
125°C
3.9 V
5.5 V
1.2 W @ 33 MHz
125°C
Maximum
3.6 V
70°C
21152 PCI-to-PCI Bridge Preliminary Datasheet
15-1