General Description
The PA7140 is a member of the Programmable Electrically Erasable Logic (PEEL™) Array family based on ICT’s CMOS EEPROM technology. PEEL™ Arrays free designers from the limitations of ordinary PLDs by providing the architectural flexibility and speed needed for today’s programmable logic designs. The PA7140 offers a versatile logic array architecture with 24 I/O pins, 14 input pins and 60 registers/latches (24 buried logic cells, 12 input registers/latches, 24 buried I/O registers/latches). Its logic array implements 100 sum-of-products logic functions divided into two groups each serving 12 logic cells. Each group shares half (60) of the 120 product-terms available for logic cells.

FEATUREs
■ Versatile Logic Array Architecture
    - 24 I/Os, 14 inputs, 60 registers/latches
    - Up to 72 logic cell output functions
    - PLA structure with true product-term sharing
    - Logic functions and registers can be I/O-buried
■ High-Speed Commercial and Industrial Versions
    - As fast as 13ns/20ns (tpdi/tpdx), 66.6MHz (fMAX)
    - Industrial grade available for 4.5 to 5.5V Vcc and -40 to +85 °C temperatures Ideal for Combinatorial, Synchronous and Asynchronous Logic Applications
    - Integration of multiple PLDs and random logic
    - Buried counters, complex state-machines
    - Comparators, decoders, other wide-gate functions
■ CMOS Electrically Erasable Technology
    - Reprogrammable in 40-pin DIP, 44-pin PLCC, and TQFP packages
■ Flexible Logic Cell
    - Up to 3 output functions per logic cell
    - D,T and JK registers with special features
    - Independent or global clocks, resets, presets, clock polarity and output enables
    - Sum-of-products logic for output enables
■ Development and Programmer Support
    - ICT PLACE Development Software
    -Fitters for ABEL, CUPL and other software
    -Programming support for by ICT PDS-3 and popular third-party programmers