
ICS552A-01
OSCILLATOR, MULTIPLIER, AND BUFFER WITH 8 OUTPUTS
CLOCK MULTIPLIER AND BUFFER
IDT / ICS OSCILLATOR, MULTIPLIER, AND BUFFER WITH 8 OUTPUTS 2
ICS552A-01
REV E 051310
Pin Assignment (ICS552A-01—A mode)
Multiplier Select Table
Pin Descriptions (ICS552A-01—A mode)
16
1
15
2
14
DC
S0
3
13
X2
4
12
X1/ICLK
DC
5
11
S2
6
7
VDD
8
GND
S3
VDD
GND
CLK1
CLK5
CLK2
CLK6
9
10
CLK3
CLK7
CLK4
CLK8
20
19
18
17
20-pin (150 mil) SSOP (QSOP)
S1
S3
S2
S1
S0
Multiplier
0
Power Down
00
0
1
x1
00
1
0
x1.333
00
1
x2
01
0
x2.666
01
0
1
x3
01
1
0
x3.333
01
1
x4
10
0
x5
1
0
1
x4.66
10
1
0
x6
1
0
1
Tri-state all
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
DC
—
Do not connect.
2
X2
XO
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
3X1/ICLK
XI
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal or
clock.
4
VDD
Power
Connect to +3.3 V or 5 V. Decouple with pin 6. Must be same as other VDDs.
5
S2
Input
Multiplier Select pin 2 per table above.
6
GND
Power
Connect to ground.
7
CLK1
Output
Output clock 1.
8
CLK2
Output
Output clock 2.
9
CLK3
Output
Output clock 3.
10
CLK4
Output
Output clock 4.
11
S1
Input
Multiplier Select pin 1 per table above
12
CLK5
Output
Output clock 5.
13
CLK6
Output
Output clock 6.
14
GND
Power
Connect to ground.
15
S3
Input
Multiplier Select pin 3 per table above
16
VDD
Power
Connect to +3.3 V or 5 V. Decouple with pin 14. Must be same as other VDDs.
17
CLK7
Output
Output clock 7.
18
CLK8
Output
Output clock 8.
19
DC
—
Do not connect.
20
S0
Input
Multiplier Select pin 0 per table above