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Product Descriptions

The Cypress PALCE22V10 is a CMOS Flash-erasable second-generation programmable array logic device. It is implemented with the familiar sum-of-products (AND-OR) logic structure and the programmable macrocell.

The PALCE22V10 is executed in a 24-pin 300-mil molded DIP, a 300-mil cerDIP, a 28-lead square ceramic leadless chip carrier, a 28-lead square plastic leaded chip carrier, and provides up to 22 inputs and 10 outputs. The PALCE22V10 can be electrically erased and reprogrammed. The programmable macrocell provides the capability of defining the architecture of each output individually. Each of the ten potential outputs may be specified as “registered” or “combinatorial.” Polarity of each output may also be individually selected, allowing complete flexibility of output configuration. Further configurability is provided through “array” configurable “output enable” for each potential output. This feature allows the 10 outputs to be reconfigured as inputs on an individual basis, or alternately used as a combination I/O controlled by the programmable array.

PALCE22V10 features a variable product term architecture. There are 5 pairs of product term sums beginning at 8 product terms per output and incrementing by 2 to 16 product terms per output. By providing this variable structure, the PALCE22V10 is optimized to the configurations found in a majority of applications without creating devices that burden the product term structures with unusable product terms and lower performance.

Product Features

? Low power

— 90 mA max. commercial (10 ns)

— 130 mA max. commercial (5 ns)

? CMOS Flash EPROM technology for electrical erasability and reprogrammability

? Variable product terms

— 2 ×(8 through 16) product terms

? User-programmable macrocell

— Output polarity control

— Individually selectable for registered or combinatorial operation

? Up to 22 input terms and 10 outputs

? DIP, LCC, and PLCC available

— 5 ns commercial version

— 4 ns tCO

— 3 ns tS

— 5 ns tPD

— 181-MHz state machine

— 10 ns military and industrial versions

— 7 ns tCO

— 6 ns tS

— 10 ns tPD

— 110-MHz state machine

— 15-ns commercial, industrial, and military versions

— 25-ns commercial, industrial, and military versions

? High reliability

— Proven Flash EPROM technology

— 100% programming and functional testing

Specifications

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