AC Parameters

13

This chapter defines the ac parameters for the Intel® StrongARM® SA-1100 Microprocessor (SA-1100).

13.1Test Conditions

The AC timing diagrams presented in this chapter assume that the outputs of SA-1100 have been loaded with a 50-pF capacitive load on output signals. The output pads of SA-1100 are CMOS drivers that exhibit a propagation delay that increases with the increase in load capacitance. Table 13-1lists the output derating figure for each output pad, showing the approximate rate of increase of delay with increasing or decreasing load capacitance for a typical process at room temperature. For derating figures for 2.0-V devices, contact the Intel Massachusetts Customer Technology Center.

Table 13-1. SA-1100 Output Derating

 

 

Output

Output

Output

Output

 

 

Load for

Derating

Derating

Derating

Derating

Note

Output Signal

Nominal

(ns/pF)

(ns/pF)

(ns/pF)

(ns/pF)

 

Value

VDD = 1.5 V

VDD = 1.5 V

VDD = 2.0 V

VDD = 2.0 V

 

 

 

rising edge

falling edge

rising edge

falling edge

 

 

 

 

 

 

 

 

All outputs

50 pF

0.086

0.077

0.08

0.072

1

 

 

 

 

 

 

 

NOTE:

1. Parameter guaranteed by design

SA-1100 Developer’s Manual

13-1

Page 349
Image 349
Intel manual AC Parameters, Test Conditions, SA-1100 Output Derating