ics552-01a STMicroelectronics, ics552-01a Datasheet - Page 2

• Manufacturer Part Number: ics552-01a
• Description: Low Skew, Single-input To Eight- Output Clock Buffer
• Manufacturer: STMicroelectronics

MDS 552-01 AB
Integrated Circuit Systems • 525 Race Street • San Jose • CA • 95126 • [phone]tel • www.icst.com
Pin Assignment
Key: I = Input; O = output; P = power supply connection, XI, XO = crystal connections
X1/ICLK
Pin Descriptions
Pin #
CLK2
CLK3
CLK4
10
11
12
13
14
15
16
17
18
19
20
VDD
GND
CLK1
1
2
3
4
5
6
8
9
7
DC
X2
S2
20 pin SSOP (QSOP)
X1/ICLK
2
10
1
3
4
7
8
9
Name
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
5
6
VDD
GND
GND
VDD
DC
DC
X2
S2
S1
S3
S0
Crystal Oscillator & Multiplier with 8 Low Skew Outputs
Type
16
15
14
13
12
11
17
XO
20
19
18
XI
O
O
O
O
O
O
O
O
P
P
P
P
-
I
I
I
-
I
Description
Don't connect.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal, or clock.
Connect to +3.3 V or +5.0 V. Decouple with pin 6.
Multiplier Select Pin 2 per table above.
Connect to ground.
Clock Output 1.
Clock Output 2.
Clock Output 3.
Clock Output 4.
Multiplier Select Pin 1 per table above.
Clock Output 5.
Clock Output 6.
Connect to ground.
Multiplier Select Pin 3 per table above.
Connect to +3.3 V or +5.0 V. Decouple with pin 14.
Clock Output 7.
Clock Output 8.
Don't connect.
Multiplier Select Pin 0 per table above.
S0
DC
CLK8
CLK7
VDD
S3
GND
CLK6
CLK5
S1
Multiplier Select Table
0 = connect directly to ground.
1 = connect directly to VDD.
All clocks stop low in Power Down state.
All clocks outputs are high impedance in 1101 mode.
2
S3
0
0
0
0
0
0
0
0
1
1
1
1
S2
0
0
0
0
1
1
1
1
0
0
0
1
S1
0
0
1
1
0
0
1
1
0
0
1
0
Revision 032200
S0
0
1
0
1
0
1
0
1
0
1
0
1
Power Down
Tri state All
Multiplier
x1.333
x2.666
x3.333
x4.66
x1
x2
x3
x4
x5
x6
ICS552-01A
Printed 11/14/00