CBTV4010

INTEGRATED CIRCUITS www.DataSheet4U.com CBTV4010 10-bit DDR SDRAM mux/bus switch Product data File under Integrated Circuits — ICL03 2002 Feb 19 Philips Semiconductors Philips Semiconductors Product data 10-bit DDR SDRAM mux/bus switch CBTV4010 FEATURES Enable signal is SSTL_2 compatible Optimized for use in Double Data Rate (DDR) SDRAM applications Designed to be used with 400 Mbps/200 MHz DDR data bus Switch on resistance is designed to eliminate the need for series resistor to DDR SDRAM 20 Ω on resistance Internal 100 Ω pull-down resistors Low differential skew Matched rise/fall slew rate Low cross-talk data-data/data-DQM Independent DIMM control lines Latch-up protection exceeds 500 mA per JESD78 ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 DESCRIPTION This 10-bit bus switch is designed for 2.3 V to 2.7 V VCC operation and SSTL_2 select input levels. Each Host port pin is multiplexed to one of four DIMM port pins. When the S pin is low the corresponding 10-bit bus switch is turned on. The on-state connects the Host port to the DIMM port through a 20 Ω nominal series resistance. When the S pin is high the switch is open and a high-impedance state exists between the two ports. The DIMM port is terminated with a 100 Ω resistor to ground when the S pin is high. The design is intended to have only one DIMM port active at any time. The part incorporates a very low cross-talk design. I...