PDF ICS83947I Data sheet ( Hoja de datos )

Número de pieza	ICS83947I
Descripción	1-TO-9 LVCMOS FANOUT BUFFER
Fabricantes	Integrated Circuit Systems
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No Preview Available ! Integrated Circuit Systems, Inc. ICS83947I LOW SKEW, 1-TO-9 LVCMOS FANOUT BUFFER GENERAL DESCRIPTION FEATURES ICS The ICS83947I is a low skew, 1-to-9 LVCMOS Fanout Buffer and a member of the HiPerClockS™ HiPerClockS™ family of High Performance Clock Solutions from ICS. The low impedance LVCMOS/LVTTL out- puts are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be in- creased from 9 to 18 by utilizing the ability of the outputs to drive two series terminated lines. www.DataSheeGt4uUa.croamnteed output and part-to-part skew characteristics make the ICS83947I ideal for high performance, single ended applications that also require a limited output voltage. • 9 LVCMOS/LVTTL outputs • Selectable CLK0 and CLK1 can accept the following input levels: LVCMOS and LVTTL • Maximum output frequency: 110MHz • Output skew: 500ps (maximum) • Part-to-part skew: 2ns (maximum) • 3.3V operating supply • -40°C to 85°C ambient operating temperature • Lead-Free package available • 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 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 http://www.icst.com/products/hiperclocks.html 1 REV. B OCTOBER 11, 2004 1 page Integrated Circuit Systems, Inc. ICS83947I LOW SKEW, 1-TO-9 LVCMOS FANOUT BUFFER PARAMETER MEASUREMENT INFORMATION 1.65V ± 0.15V www.DataSheet4UV.cDDom LVCMOS GND -1.65V ± 0.15V SCOPE Qx V DDO Qx 2 V DDO Qy 2 t sk(o) 3.3V OUTPUT LOAD AC TEST CIRCUIT OUTPUT SKEW PART 1 Qx PART 2 Qy V DDO 2 V DDO 2 t sk(pp) PART-TO-PART SKEW 0.8V Clock Outputs 2V tR OUTPUT RISE/FALL TIME 83947AYI CLK0, CLK1 Q0:Q8 VDD 2 VDDO 2 t PD PROPAGATION DELAY 2V 0.8V tF Q0:Q8 V DDO 2 Pulse Width t PERIOD odc = t PW t PERIOD OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD http://www.icst.com/products/hiperclocks.html REV. B OCTOBER 11, 2004 5 5 Page

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Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
ICS83947I	1-TO-9 LVCMOS FANOUT BUFFER	Integrated Circuit Systems
ICS83947I-147	1-TO-9 LVCMOS FANOUT BUFFER	Integrated Circuit Systems

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