ics650-11c Integrated Device Technology, ics650-11c Datasheet - Page 2

• Manufacturer Part Number: ics650-11c
• Description: Alcatel Clock Source
• Manufacturer: Integrated Device Technology

MDS 650-11C
Pin Assignment
Pin Descriptions
Integrated Circuit Systems, Inc.
Number
6, 14, 20
9, 17, 18
70.6M/50.78M
4, 16
Pin
10
11
12
13
15
19
1
2
3
5
7
8
80M/78.9M
59.23M
GND
VDD
SB0
SB1
DC
X2
X1
70.6M/50.78M Output SC clock. See table above.
80M/78.9M
17.664M
59.32M
25/33M
Name
SEL-P
20-pin (150 mil) SSOP
GND
VDD
SC1
SC0
SB0
SB1
Pin
DC
X2
X1
10
1
2
3
4
5
6
7
8
9
Output B1 clock. See table above.
Output B2 clock. See table above.
Output 25 MHz or 33 MHz clock output. Determined by SEL-P per table above.
Output 17.664 MHz buffered reference clock output.
Power Connect to VDD. Must be same value as other VDD’s. Decouple with pin 6.
Power Connect to ground.
Type
Input
Input
Input
Input
Input
Pin
XO
XI
—
20
19
18
17
16
15
14
13
12
11
●
525 Race Street, San Jose, CA 95126
Input pin. See table above.
Crystal connection. Connect to a parallel mode 17.664 MHz crystal. Leave
open for clock.
Crystal connection. Connect to a parallel mode 17.664 MHz crystal or clock.
Select pin. See table above.
Don’t connect. Do not connect this pin to anything.
Select pin. See table above.
Select pin. See table above.
Select pin. Determines frequency of pin 12 per table above.
GND
SEL-P
DC
DC
VDD
SC0
GND
17.664M
25/33M
SC1
2
Processor Clock (MHz)
0 = connect directly to ground
1 = connect directly to VDD
SC Clock (MHz)
SB Clock (MHz)
SEL-P
SC1
SB1
0
1
0
0
1
0
1
Pin Description
SB0
SC0
Pin 12
0
1
0
1
0
33.0
25.0
●
tel [phone]
Pin 10
Pin 7
70.656
50.784
59.23
Low
OFF
Alcatel Clock Source
Pin 8
78.9
●
80
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Rev H 102709
ICS650-11C