Philips' Logic ICs Support DDR
12/14/98
Electronic Buyers' News
Page 22
Copyright 1998 CMP Publications Inc.
Philips Semiconductors today will introduce three ICs to support emerging double - data - rate SDRAM modules.
The support circuits, slated to begin volume production late in the first quarter of 1999, include the SSTL 16857 registered driver, PCK857 phase-lock loop, and the CBT3857 10-bit bus switch.
The SSTL 16857 is a 14-bit stub-series-terminated logic registered driver with differential clock. Two of the ICs in a DDR module will supply the device's 23 to 27 required registered control and address lines, according to Philips, Sunnyvale, Calif.
The PCK857 is a 150-MHz differential 1:10 SDRAM clock driver. The CBT3857 is an optional FET switch that can be installed between DQ lines and the edge connector to disconnect the DQ nets on unselected DIMMs from the system bus, the company said.
The SSTL 16857 and the PCK857 are available in 48-pin TSSOPs for $2 and $2.50, respectively, in 10,000s. The CBT3857, which ships in a 24-pin TSSOP, costs 80 cents in like quantities.
December 14, 1998 |
