AMD

2-23

PAL16R8B-2 (Com’l)

CAPACITANCE (Note 1)

Parameter

Symbol

Parameter Description

Test Conditions

Typ

Unit

Input Capacitance

7

Output Capacitance

f = 1 MHz

7

°C

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

Unit

Input or Feedback to Combinatorial Output

16L8, 16R6,

25

ns

16R4

Setup Time from Input or Feedback to Clock

25

ns

Hold Time

0ns

Clock to Output

15

ns

Clock Width

LOW

15

ns

HIGH

15

ns

External Feedback

25

MHz

Internal Feedback

28.5

MHz

(Note 5)

No Feedback

33

MHz

OE to Output Enable

20

ns

OE to Output Disable

20

ns

Input to Output Enable Using Product Term Control

25

ns

Input to Output Disable Using Product Term Control

25

ns

Maximum

Frequency

(Note 4)

16R8, 16R6,

16R4

16R8, 16R6,

16R4

Notes:

2. See Switching Test Circuit for test conditions.

4. 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.