KANATA, ONT. Tundra Semiconductor Corp. has introduced the PowerPro memory controller as a companion device to its PowerSpan PowerPC/PCI multiport bus switch. The two provide a complete PowerPC chip set for communications applications.
The new memory controller supports 72-bit-wide (64-bit data, 8-bit ECC) PC100 SDRAM DIMMs and flash memory. Applications include remote access concentrators, regional office routers, cellular infrastructure equip-ment and telecommunications switching equipment.
Until now, PowerPC memory controller solutions have always been integrated with a PCI bridge and constrain PowerPC designs to a specific PCI implementation, said Richard O'Connor, vice president of marketing and business development. "With the PowerPro and PowerSpan, designers can marry a discrete memory control solution to a single PCI or a dual PCI PowerSpan, which means that they can leverage their PowerSpan software investment across different PCI hardware implementations."
PowerPro features full support for error-checking correction, PC100 compliance and a generic 8-bit flash ROM interface for boot ROM or other local devices such as UARTs.
"Many PowerPC system designs require discrete memory control functionality," said O'Connor. "Traditionally, discrete memory controllers were implemented by hardware designers in FPGAs or ASICs, but as PowerPC bus frequencies increase, it becomes more difficult for hardware designers to 'roll their own' SDRAM-control solutions. The PowerPro is the first off-the-shelf discrete memory controller targeted at PowerPC architectures."
The PowerPro will be sampling in a 352-pin BGA (1-mm ball pitch) package in the first quarter of 2000. Volume production is scheduled for mid-2000. It's expected to be priced at $20 in quantities of 10,000.
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EETInfo No. 625