I CR O C LOC K
Pin Assignment
MK1711-01
200 MHz Selectable Clock Source
MK1711-01
X1 1
VDD 2
VDD 3
VDDP 4
GND 5
GND 6
SEL3V 7
INVCLK 8
16 X2
15 OE
14 NC
13 CLK
12 NC
11 S0
10 S1
9 S2
16 pin narrow (150 mil) SOIC
Output Clock Select Table (MHz)
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
Pin Descriptions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
X1
VDD
VDD
VDDP
GND
GND
SEL3V
INVCLK
S2
S1
S0
NC
CLK
NC
OE
X2
Type
XI
P
P
P
P
P
I
I
I
I
I
-
O
-
I
XO
Description
Crystal connection. Connect to a 20.00 MHz crystal.
VDD. Connect to +3.3V (Possibly 5V).
VDD. Connect to +3.3V (Possibly 5V).
Connect to 3.3V only.
Connect to ground.
Connect to ground.
Select 3.3V only power supply. Connect to GND for VDD=5V. Internal pull-up.
Inverts output clock. Internal pull-up.
Clock Select 2. Selects output per table above. Internal pull-up.
Clock Select 1. Selects output per table above. Internal pull-up.
Clock Select 0. Selects output per table above. Internal pull-up.
No Connect. Nothing is connected internally to this pin.
Clock output determined by status of S2, S1, S0. See table above.
No Connect. Nothing is connected internally to this pin.
Output Enable. Active high. Tri-states clock output when low. Internal pull-up.
Crystal connection. Connect to a 20.00 MHz crystal.
Key: I = Input, O = output, P = power supply connection
MDS 1711-01 B
2
Revision 120897
Printed 11/15/00
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