PI6C185-00QE Pericom Semiconductor, PI6C185-00QE Datasheet - Page 6

• Manufacturer Part Number: PI6C185-00QE
• Description: IC 1:7 CLOCK BUFFER 20-QSOP
• Manufacturer: Pericom Semiconductor
• Type: Fanout Buffer (Distribution)r

Specifications of PI6C185-00QE

• Number Of Circuits: 1
• Ratio - Input:output: 1:7
• Differential - Input:output: No/No
• Input: TTL
• Output: TTL
• Frequency - Max: 128MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Frequency-max: 128MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
PCB Layout Suggestion
Note:
This is only a suggested layout. There may be alternate solutions
depending on actual PCB design and layout.
As a general rule, C1-C5 should be placed as close as possible to
their respective V
Chipset
From
08-0298
C1
C2
C3
PI6C185
DD
Figure 2. Design Guidelines
V
V
V
V
V
DD
DD
DD
SS
SS
.
7
1
2
3
4
5
6
7
8
9
10
R
s
CL
SDRAM
DIMM
Spec.
20
19
18
17
16
15
14
13
12
11
6
V
V
V
V
V
DD
SS
DD
SS
SS
Recommended capacitor values:
C1-C5 .............. 0.1μF, ceramic
C6 .................. 22μF
C5
C4
FB
Precision 1-7 Clock Buffer
Via to
Via to
Void in Power Plane
V
22mF
V
V
C6
SS Plane
DD Plane
DD
PS8317F
PI6C185-00
11/13/08