PDF ICS83840 Data sheet ( Hoja de datos )

Número de pieza	ICS83840
Descripción	DDR SDRAM MUX
Fabricantes	Integrated Circuit Systems
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No Preview Available ! Integrated Circuit Systems, Inc. ICS83840 DDR SDRAM MUX GENERAL DESCRIPTION The ICS83840 is a DDR SDRAM MUX and is ICS a member of the HiPerClock S™ family of High HiPerClockS™ Performance Clock Solutions from ICS. The device has 10 Host Lines and each host line can be passed to 4 Data Ports. The 10 channels are allocated as follows in the DDR SDRAM application: 8 data lines, 1 strobe line and 1 DQm line. The Host/Data Ports are compatible with single-ended SSTL-2 and the device oper- www.DataSheeat4teUs.cformom a 2.5V supply. Guaranteed low output skew makes the ICS83840 ideal for demanding applications which require well defined perfor- mance and repeatability. FEATURES • 40 low skew single-ended DIMM ports • 4 SSTL-2 compatible enable inputs • Maximum Switching Speed: 3ns • Output skew: 120ps (maximum) • Bank skew: 45ps (maximum) • ron = 8Ω (typical) • Full 2.5V supply modes • 0°C to 70°C ambient operating temperature • Pin compatible with the CBTV4010 SIMPLIFIED SCHEMATIC LOGIC DIAGRAM HP0 RON Sw Sw Sw HPx nDPx Sw 0DP0 1DP0 2DP0 3DP0 400Ω HP9 RON Sw 0DP9 nSn Sw 1DP9 Sw 2DP9 Sw 3DP9 SW nS0 nS1 nS2 PIN ASSIGNMENT 1 A VDD B nS2 C nc D E 2DP9 F 1DP9 G 0DP9 H J 1DP8 K 0DP8 L 3DP7 2 nS1 VDD nS3 GND 3DP9 HP9 3DP8 2DP8 HP8 GND 2DP7 3 nc nS0 HP7 1DP7 4 GND 0DP7 83840AH nS3 5 1DP0 0DP0 3DP6 2DP6 6 2DP0 HP0 HP6 1DP6 7 3DP0 0DP1 GND 0DP6 8 1DP1 3DP5 9 2DP1 HP1 HP5 2DP5 10 3DP1 GND HP2 3DP2 0DP3 HP3 GND 0DP4 HP4 3DP4 1DP5 www.icst.com/products/hiperclocks.html 1 11 0DP2 1DP2 2DP2 1DP3 2DP3 3DP3 1DP4 2DP4 0DP5 ICS83840 64-Ball TFBGA 7mm x 7mm x 1.2mm package body H Package Top View REV. A DECEMBER 22, 2003 1 page Integrated Circuit Systems, Inc. RELIABILITY INFORMATION ICS83840 DDR SDRAM MUX TABLE 6. θJAVS. AIR FLOW TABLE www.DataSheet4U.com θJA by Velocity (Millimeter Feet per Second) 01 Two-Layer PCB, JEDEC Standard Test Boards 50.04°C/W 43.18°C/W 2 41.17°C/W NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs. TRANSISTOR COUNT The transistor count for ICS83840 is: 320 83840AH www.icst.com/products/hiperclocks.html 5 REV. A DECEMBER 22, 2003 5 Page

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