AFS090 datasheet(21/334 Pages) MICROSEMI

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Fusion Family of Mixed Signal FPGAs

R e visio n 2

2 -5

Timing Characteristics

Sample VersaTile Specifications—Sequential Module

The Fusion library offers a wide variety of sequential cells, including flip-flops and latches. Each has a

data input and optional enable, clear, or preset. In this section, timing characteristics are presented for a

representative sample from the library (Figure 2-5). For more details, refer to the IGLOO, ProASIC3,

SmartFusion and Fusion Macro Library Guide

Table 2-1 • Combinatorial Cell Propagation Delays

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

Combinatorial Cell

Equation

Parameter

–2

–1

Std.

Units

INV

Y = !A

tPD

0.40

0.46

0.54

AND2

Y = A · B

tPD

0.47

0.54

0.63

NAND2

Y = !(A · B)

tPD

0.47

0.54

0.63

OR2

Y = A + B

tPD

0.49

0.55

0.65

NOR2

Y = !(A + B)

tPD

0.49

0.55

0.65

XOR2

Y = A

⊕ Bt

0.74

0.84

0.99

MAJ3

Y = MAJ(A, B, C)

tPD

0.70

0.79

0.93

XOR3

Y = A

⊕ B ⊕ Ct

0.87

1.00

1.17

MUX2

Y = A !S + B S

tPD

0.51

0.58

0.68

AND3

Y = A · B · C

tPD

0.56

0.64

0.75

Note:

For the derating values at specific junction temperature and voltage supply levels, refer to Table 3-7 on

page 3-9.

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