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ICS83947I-147 fiches techniques PDF

Integrated Circuit Systems - 1-TO-9 LVCMOS FANOUT BUFFER

Numéro de référence ICS83947I-147
Description 1-TO-9 LVCMOS FANOUT BUFFER
Fabricant Integrated Circuit Systems 
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ICS83947I-147 fiche technique
Integrated
Circuit
Systems, Inc.
ICS83947I-147
LOW SKEW, 1-TO-9
LVCMOS/LVTTL FANOUT BUFFER
GENERAL DESCRIPTION
ICS
The ICS83947I-147 is a low skew, 1-to-9
LVCMOS/LVTTL Fanout Buffer and a member of
HiPerClockS™ the HiPerClockS™ family of High Performance
Clock Solutions from ICS. The low impedance
LVCMOS/LVTTL outputs are designed to drive 50
series or parallel terminated transmission lines. The effective
fanout can be increased from 9 to 18 by utilizing the ability of
the outputs to drive two series terminated lines.
www.DataSheeGt4uUa.craonmteed output and part-to-part skew characteristics make
the ICS83947I-147 ideal for high performance, 3.3V or 2.5V
single ended applications.
FEATURES
9 LVCMOS/LVTTL outputs
Selectable CLK0 and CLK1 can accept the following
input levels: LVCMOS and LVTTL
Maximum output frequency: 250MHz
Output skew: 115ps (maximum)
Part-to-part skew: 500ps (maximum)
Additive phase jitter, RMS: 0.02ps (typical) @ 3.3V
Full 3.3V or 2.5V operating supply
-40°C to 85°C ambient operating temperature
Pin compatible with the MPC947
BLOCK DIAGRAM
CLK_EN
CLK0
CLK1
0
1
D
Q
LE
CLK_SEL
OE
PIN ASSIGNMENT
32 31 30 29 28 27 26 25
Q0 GND 1
CLK_SEL 2
24 GND
23 Q3
Q1 CLK0 3
2 2 VDDO
Q2 CLK1 4 ICS83947I-147 21 Q4
CLK_EN 5
20 GND
Q3 OE 6
19 Q5
VDD 7
Q4
GND 8
1 8 VDDO
17 GND
Q5 9 10 11 12 13 14 15 16
Q6
Q7
Q8
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
83947AYI-147
http://www.icst.com/products/hiperclocks.html
1
REV. A SEPTEMBER 24, 2004

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