AMD

2-173

PALCE20V8H-15/25 Q-15/25 (Com’l)

CAPACITANCE (Note 1)

Parameter

Symbol

Parameter Description

Test Conditions

Typ

Unit

Input Capacitance

°C,

5

pF

Output Capacitance

f = 1 MHz

8

pF

Note:

1. These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified

where capacitance may be affected.

SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note 2)

Parameter

Symbol

Parameter Description

Min

Max

Min

Max

Unit

Input or Feedback to Combinatorial Output

15

25

ns

Setup Time from Input or Feedback to Clock

12

15

ns

Hold Time

0

0

ns

Clock to Output

10

12

ns

LOW

8

12

ns

HIGH

8

12

ns

External Feedback

1/(tS + tCO)

45.5

37

MHz

fMAX

Internal Feedback (fCNT)

1/(tS + tCF) (Note 4)

50

40

MHz

No Feedback

1/(tWH + tWL)

62.5

41.6

MHz

OE to Output Enable

15

20

ns

OE to Output Disable

15

20

ns

Input to Output Enable Using Product Term Control

15

25

ns

Input to Output Disable Using Product Term Control

15

25

ns

-15

-25

Clock Width

Maximum

Frequency

(Note 3)

Notes:

2. See Switching Test Circuit for test conditions.

3. These parameters are not 100% tested, but are calculated at initial characterization and at any time the design is modified

where frequency may be affected.