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Read PLD IC PALCE22V10
Read PLD IC PALCE22V10
Read PLD IC PALCE22V10 24-Pin EE CMOS (Zero Power) Versatile PAL Device is necessary to manipulate some of its distinctive characteristics:
DISTINCTIVE CHARACTERISTICS
x As fast as 5-ns propagation delay and 142.8 MHz fMAX (external)
x Low-power EE CMOS
x 10 macrocells programmable as registered or combinatorial, and active high or active low to match application needs
x Peripheral Component Interconnect (PCI) compliant (-5/-7/-10)
x Global asynchronous reset and synchronous preset for initialization
x Power-up reset for initialization and register preload for testability
x Extensive third-party software and programmer support
x 24-pin SKINNY DIP, 24-pin SOIC, and 28-pin PLCC
x 5-ns and 7.5-ns versions utilize split leadframes for improved performance
GENERAL DESCRIPTION
The PALCE22V10Z is an advanced PAL® device built with zero-power, high-speed, electrically-erasable CMOS technology. It provides user-programmable logic for replacing conventional zero-power CMOS SSI/MSI gates and flip-flops at a reduced chip count.
The PALCE22V10Z provides zero standby power and high speed. At 30 µA maximum standby current, the PALCE22V10Z allows battery-powered operation for an extended period.
The PAL device implements the familiar Boolean logic transfer function, the sum of products. The PAL device is a programmable AND array driving a fixed OR array. The AND array is programmed to create custom product terms, while the OR array sums selected terms at the outputs.
The product terms are connected to the fixed OR array with a varied distribution from 8 to16 across the outputs (see Block Diagram). The OR sum of the products feeds the output macrocell. Each macrocell can be programmed as registered or combinatorial, and active-high or active low. The output configuration is determined by two bits controlling two multiplexers in each macrocell.