[Lucent Technologies Inc.]

Description
The CMOS ATT3000 Series Field-Programmable Gate Array (FPGA) family provides a group of highdensity, digital integrated circuits. Their regular, extendable, flexible, user-programmable array architecture is composed of a configuration program store plus three types of configurable elements: a perimeter of I/O blocks, a core array of logic blocks, and resources for interconnection. The general structure of an FPGA is shown in Figure 1.

Features
■ High performance:
   — Up to 270 MHz toggle rates
   — 4-input LUT delays <2.7 ns
■ User-programmable gate arrays
   — Unlimited reprogrammability
   — Easy design iteration through in-system logic changes
■ Flexible array architecture:
   — Compatible arrays ranging from 1500 to 6000 gate logic complexity
   — Extensive register, combinatorial, and I/O capabilities
   — Low-skew clock nets
   — High fan-out signal distribution
   — Internal 3-state bus capabilities
   — TTL or CMOS input thresholds
   — On-chip oscillator amplifier
■ Standard product availability:
   — Low-power 0.55 µm CMOS, static memory technology
   — Pin-for-pin compatible with Xilinx* XC3000* and XC3100* families
   — Cost-effective for volume production
   — 100% factory pretested
   — Selectable configuration modes
■ ORCA™ Foundry for ATT3000 Development System support
■ All FPGAs processed on a QML-certified line
■ Extensive packaging options