AMD

2-19

PAL16R8D/2 (Com’l)

CAPACITANCE (Note 1)

Parameter

Symbol

Parameter Description

Test Conditions

Typ

Unit

Input Capacitance

5

Output Capacitance

f = 1 MHz

8

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.

°C

pF

SWITCHING CHARACTERISTICS over COMMERCIAL operating ranges (Note 2)

Parameter

Min

Symbol

Parameter Description

(Note 3)

Max

Unit

Input or Feedback to Combinatorial Output

16L8, 16R6,

3

10

ns

16R4

Setup Time from Input or Feedback to Clock

10

ns

Hold Time

0ns

Clock to Output

3

7

ns

Clock Width

LOW

8

ns

HIGH

16R8, 16R6,

8

ns

External Feedback

16R4

58.8

MHz

Internal Feedback

60

MHz

(Note 5)

No Feedback

62.5

MHz

OE to Output Enable

2

10

ns

OE to Output Disable

2

10

ns

Input to Output Enable Using Product Term Control

16L8, 16R6,

3

10

ns

Input to Output Disable Using Product Term Control

16R4

3

10

ns

Maximum

Frequency

(Note 4)

Notes:

2. See Switching Test Circuit for test conditions.

ments may alter these values; therefore, minimum values are recommended for simulation purposes only.

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

where the frequency may be affected.