MK1711-01

200 MHz Selectable Clock Source

MDS1711-01B

2

Revision 12087

Printed 12/8/97

MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax

ICRO

Pin Descriptions

Key: I = Input, O = output, P = power supply connection

Pin Assignment

Number

Name

Type

Description

1

X1

XI

Crystal connection. Connect to a 20.00 MHz crystal.

2

VDD

P

VDD. Connect to +3.3V (Possibly 5V).

3

VDD

P

VDD. Connect to +3.3V (Possibly 5V).

4

VDDP

P

Connect to 3.3V only.

5

GND

P

Connect to ground.

6

GND

P

Connect to ground.

7

SEL3V

I

Select 3.3V only power supply. Connect to GND for VDD=5V. Internal pull-up.

8

INVCLK

I

Inverts output clock. Internal pull-up.

9

S2

I

Clock Select 2. Selects output per table above. Internal pull-up.

10

S1

I

Clock Select 1. Selects output per table above. Internal pull-up.

11

S0

I

Clock Select 0. Selects output per table above. Internal pull-up.

12

NC

-

No Connect. Nothing is connected internally to this pin.

13

CLK

O

Clock output determined by status of S2, S1, S0. See table above.

14

NC

-

No Connect. Nothing is connected internally to this pin.

15

OE

I

Output Enable. Active high. Tri-states clock output when low. Internal pull-up.

16

X2

XO

Crystal connection. Connect to a 20.00 MHz crystal.

Output Clock Select Table (MHz)

16

15

14

13

16 pin narrow (150 mil) SOIC

12

11

10

9

1

2

3

4

5

6

7

8

MK1711-01

VDD

GND

X1

X2

VDDP

INVCLK

GND

SEL3V

S1

S2

S0

OE

NC

Input

S2

S1

S0

CLK1

20

0

0

0

200

20

0

0

1

182

20

0

1

0

167

20

0

1

1

154

20

1

0

0

143

20

1

0

1

133

20

1

1

0

125

20

1

1

1

118

CLK

NC

VDD