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Description

The ispLSI 3256E is a High Density Programmable Logic Device containing 512 Registers, 256 Universal I/O pins, five Dedicated Clock Input Pins, 16 Output Routing Pools (ORP) and a Global Routing Pool (GRP) which allows complete inter-connectivity between all of these elements.

Features

? HIGH-DENSITY PROGRAMMABLE LOGIC

— 256 I/O Pins

— 12000 PLD Gates

— 512 Registers

— High Speed Global Interconnect

— Wide Input Gating for Fast Counters, State Machines, Address Decoders, etc.

— Small Logic Block Size for Random Logic

? HIGH PERFORMANCE E2CMOS? TECHNOLOGY

— fmax = 100 MHz Maximum Operating Frequency

— tpd = 10 ns Propagation Delay

— TTL Compatible Inputs and Outputs

— Electrically Erasable and Reprogrammable

— Non-Volatile

— 100 Tested at Time of Manufacture

— Unused Product Term Shutdown Saves Power

? IN-SYSTEM PROGRAMMABLE

— 5V In-System Programmable (ISP?) using Lattice ISP or Boundary Scan Test (IEEE 1149.1) Protocol

— Increased Manufacturing Yields, Reduced Time-toMarket, and Improved Product Quality

— Reprogram Soldered Devices for Faster Debugging

? 100 IEEE 1149.1 BOUNDARY SCAN COMPATIBLE

? OFFERS THE EASE OF USE AND FAST SYSTEM SPEED OF PLDs WITH THE DENSITY AND FLEXIBILITY OF FIELD PROGRAMMABLE GATE ARRAYS

— Complete Programmable Device Can Combine Glue Logic and Structured Designs

— Five Dedicated Clock Input Pins

— Synchronous and Asynchronous Clocks

— Programmable Output Slew Rate Control to Minimize Switching Noise

— Flexible Pin Placement

— Optimized Global Routing Pool Provides Global Interconnectivity

? ispDesignEXPERT? – LOGIC COMPILER AND COMPLETE ISP DEVICE DESIGN SYSTEMS FROM HDL SYNTHESIS THROUGH IN-SYSTEM PROGRAMMING

— Superior Quality of Results

— Tightly Integrated with Leading CAE Vendor Tools

— Productivity Enhancing Timing Analyzer, Explore Tools, Timing Simulator and ispANALYZER?

— PC and UNIX Platforms