AFS090 datasheet(186/334 Pages) MICROSEMI

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Device Architecture

2- 17 0

R e v isio n 2

Table 2-93 • Summary of I/O Timing Characteristics – Software Default Settings

Commercial Temperature Range Conditions: TJ = 70°C, Worst-Case VCC = 1.425 V,

Worst-Case VCCI = I/O Standard Dependent

Applicable to Advanced I/Os

I/O Standard

3.3 V LVTTL/

3.3 V LVCMOS

12 mA

High 35 pF

–

0.49 2.64 0.03 0.90 0.32 2.69 2.11 2.40 2.68 4.36 3.78 ns

2.5 V LVCMOS

12 mA

High 35 pF

–

0.49 2.66 0.03 0.98 0.32 2.71 2.56 2.47 2.57 4.38 4.23 ns

1.8 V LVCMOS

12 mA

High 35 pF

–

0.49 2.64 0.03 0.91 0.32 2.69 2.27 2.76 3.05 4.36 3.94 ns

1.5 V LVCMOS

12 mA

High 35 pF

–

0.49 3.05 0.03 1.07 0.32 3.10 2.67 2.95 3.14 4.77 4.34 ns

3.3 V PCI

Per PCI

spec

High 10 pF 25 2 0.49 2.00 0.03 0.65 0.32 2.04 1.46 2.40 2.68 3.71 3.13 ns

3.3 V PCI-X

Per PCI-X

spec

High 10 pF 25 2 0.49 2.00 0.03 0.62 0.32 2.04 1.46 2.40 2.68 3.71 3.13 ns

LVDS

24 mA

High

–

0.49 1.37 0.03 1.20 N/A N/A N/A N/A N/A N/A N/A ns

LVPECL

24 mA

High

–

0.49 1.34 0.03 1.05 N/A N/A N/A N/A N/A N/A N/A ns

Notes:

1. For specific junction temperature and voltage-supply levels, refer to Table 3-6 on page 3-7 for derating values.

2. Resistance is used to measure I/O propagation delays as defined in PCI specifications. See Figure 2-121 on page 2-199

for connectivity. This resistor is not required during normal operation.

Table 2-94 • Summary of I/O Timing Characteristics – Software Default Settings

Commercial Temperature Range Conditions: TJ = 70°C, Worst-Case VCC = 1.425 V,

Worst-Case VCCI = I/O Standard Dependent

Applicable to Standard I/Os

I/O Standard

3.3 V LVTTL/

3.3 V LVCMOS

8 mA

High

35 pF

–

0.49 3.29 0.03 0.75 0.32 3.36 2.80

1.79

2.01

2.5 V LVCMOS 8 mA

High

35pF

–

0.49 3.56 0.03 0.96 0.32 3.40 3.56

1.78

1.91

1.8 V LVCMOS 4 mA

High

35pF

–

0.49 4.74 0.03 0.90 0.32 4.02 4.74

1.80

1.85

1.5 V LVCMOS 2 mA

High

35pF

–

0.49 5.71 0.03 1.06 0.32 4.71 5.71

1.83

Note:

For specific junction temperature and voltage-supply levels, refer to Table 3-6 on page 3-7 for derating values.

AFS090 Datasheet(PDF) 186 Page - Microsemi Corporation

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