SOUTH PORTLAND, Maine -- Logic often plays the wallflower to flashier technology, such as digital signal processing. But not at Fairchild Semiconductor Corp., where logic is lavished with attention.
Earlier this month, the company announced an eight-lead series to augment its TinyLogic family.
Fairchild stood alone when it moved recently from five- to six-lead logic products, and now has added even more functionality with the eight-lead TinyLogic series, according to marketing development manager Gary O'Donnell. "We're essentially the only ones in the industry putting this kind of focus on logic," he said. "An interesting question, in fact, is who customers can turn to as a second source for a product like our new eight-lead."
Targeted at low-profile systems such as notebook computers, cellular phones, digital cameras, and PDAs, the TinyLogic eight-lead devices come in what the company says is the smallest package available for dual-logic functions. The US8 package is 2.1 mm wide by 3.1 mm long, including the leads, and is slightly less than a millimeter high.
"Getting the height below 1 mm was important," O'Donnell said, "because that's what many of our customers tell us their applications require."
In addition to the package shrink, the new TinyLogic devices provide ultrahigh-speed performance at low voltages. This allows operation over 1.8 to 5.5 V, and 2.1- and 4.4-ns propagation delays at 3.3 and 1.8 V, respectively. The series can also complement larger-packaged LCX or AHC gates to add system functions while minimizing the need for additional space, the company said.
Fairchild's logic roadmap, O'Donnell said, calls for more application-specific functions in single six- or eight-lead packages; battery-voltage reductions to 1.6 and eventually 1.2 V; and leadless high-density packaging such as ball-grid array.
The seven members of the family are sampling, and volume production is slated for first-quarter 2000. These include a dual NAND gate (NC7WZ00K8); dual NOR gate (NC7WZ02K8); dual AND gate (NC7WZ08K8); and a dual NAND/open- drain output (NC7WZ38K8).
The devices are priced at 40 cents in quantities of 3,000, and below 25 cents in quantities of more than 50,000. Another trio of eight-lead products is under design and should be sampling by early next year, according to the company.