MDS 671-15 B

2

Revision 021904

ICS671-15

Pin Assignment

Pin Descriptions

20

1

19

2

18

33M_IN

66M_IN

3

17

VDD

4

16

OE5

OE6

5

15

GND

6

VDD

7

66M_CPUOUT1

8

GND

VDD

GND

VDD

OE4

9

10

OE3

OE1

GND

24

23

22

21

24-pin (173 mil) TSSOP

14

13

11

12

OE2

66M_CPUOUT2

33M_PCIOUT4

33M_PCIOUT3

33M_PCIOUT2

33M_PCIOUT1

66M_AGPOUT1

66M_AGPOUT2

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

33M_IN

Input

Connect this pin to a 33 MHz input clock.

2

VDD

Power

Connect to +3.3 V.

3

OE5

Input

Output Enable control pin for outputs 66M_CPUOUT2. This pin is active

high and tri-states the outputs when low.

4

GND

Power

Connect to ground.

5

66M_CPUOUT1

Output

66 MHz output clock.

6

66M_CPUOUT2

Output

66 MHz output clock.

7

VDD

Power

Connect to +3.3 V.

8

VDD

Power

Connect to +3.3 V.

9

OE3

Input

Output Enable control pin for output 33M_PCIOUT4. This pin is active

high and tri-states the outputs when low.

10

33M_PCIOUT4

Output

33 MHz output clock.

11

33M_PCIOUT3

Output

33 MHz output clock.

12

OE2

Input

Output Enable control pin for output 33M_PCIOUT3. This pin is active

high and tri-states the outputs when low.

13

33M_PCIOUT2

Output

33 MHz output clock.