AMD

2-17

PAL16R8-7 (Com’l)

CAPACITANCE (Note 1)

Parameter

Symbol

Parameter Description

Test Conditions

Typ

Unit

Input Capacitance

5

Output Capacitance

8

°C

f = 1 MHz

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

Min

Symbol

Parameter Description

(Note 3)

Max

Unit

16L8, 16R6,

3

7.5

16R4

3

7

Setup Time from Input or Feedback to Clock

7

ns

Hold Time

0ns

Clock to Output

1

6.5

ns

Skew Between Registered Outputs (Note 4)

16R8, 16R6,

1

ns

LOW

16R4

5

ns

HIGH

5

ns

External Feedback

74

MHz

Internal Feedback

100

MHz

(Note 6)

No Feedback

100

MHz

OE to Output Enable

1

8

ns

OE to Output Disable

1

8

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

ns

Maximum

Frequency

(Note 5)

Clock Width

Input or Feedback to

Combinatorial Output

1 Output Switching

Notes:

2. See Switching Test Circuit for test conditions.

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

4. Skew is measured with all outputs switching in the same direction.

5. 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.