AMD

2-54

PALCE16V8H-15/25, Q-15/25 (Com’l, Ind), Q-20 (Ind)

CAPACITANCE (Note 1)

Parameter

Symbol

Parameter Descriptions

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 and INDUSTRIAL operating ranges

(Note 2)

Parameter

Symbol

Parameter Description

Min

Max

Min

Max

Min

Max

Unit

Input or Feedback to Combinatorial Output

15

20

25

ns

Setup Time from Input or Feedback to Clock

12

13

15

ns

Hold Time

0

0

0

ns

Clock to Output

10

11

12

ns

LOW

8

10

12

ns

HIGH

8

10

12

ns

External Feedback

45.5

41.6

37

MHz

Internal Feedback

50

45.4

40

MHz

(Note 4)

No Feedback

62.5

50.0

41.6

MHz

OE to Output Enable

15

18

20

ns

OE to Output Disable

15

18

20

ns

Input to Output Enable Using Product Term Control

15

18

20

ns

Input to Output Disable Using Product Term Control

15

18

20

ns

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.

-15

-20

-25