Philips Semiconductors Programmable Logic Devices

Product specification

PLUS16R8D/-7 SERIES

PAL devices

16L8, 16R8, 16R6, 16R4

September 10, 1993

46

AC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

FROM

TO

–7

D

UNIT

TYP

MAX

MAX

Pulse Width

Clock High

CK+

CK–

5

7

ns

Clock Low

CK–

CK+

5

7

ns

Period

CK+

CK+

10

14

ns

Setup & Hold time

Input

Input or

feedback

CK+

7

9

ns

Input

CK+

Input or

feedback

0

0

ns

Propagation delay

Clock

CK

±

Q

±

3

6.5

3

7.5

ns

CK

±

Q

3

6.5

ns

I, B

Output

3

7.5

3

10

ns

OE

Output enable

3

8

3

10

ns

I

Output enable

3

10

3

10

ns

OE

Output disable

3

8

3

10

ns

I

Output disable

3

10

3

10

ns

Output

Q

Q

1

1

ns

Power-Up Reset

Q+

10

10

ns

Frequency (16R8, R6, R4)

100

71.4

MHz

90

64.5

MHz

74

60.6

MHz

*

For definitions of the terms, please refer to the Timing/Frequency Definitions tables.

NOTES:

1. CL = 0pF while measuring minimum output delays.

6. Not 100% tested, but calculated at initial characterization and at any time a modification in design takes place which may affect the

frequency.