The PALCE20V8Q-20JI/4 is an advanced PAL device built with low-power, high-speed, electricallyerasable CMOS technology. Its macrocells provide a universal device architecture. The PALCE20V8Q-20JI/4 is fully compatible with the GAL20V8 and can directly replace PAL20R8 series devices and most 24-pin combinatorial PAL devices.
Device logic is automatically configured according to the user’s design specification. A design is implemented using any of a number of popular design software packages, allowing automatic creation of a programming file based on Boolean or state equations. Design software also verifies the design and can provide test vectors for the finished device. Programming can be accomplished on standard PAL device programmers.
The PALCE20V8Q-20JI/4 utilizes the familiar sum-of-products (AND/OR) architecture that allows users to implement complex logic functions easily and efficiently. Multiple levels of combinatorial logic can always be reduced to sum-of-products form, taking advantage of the very wide input gates available in PAL devices. The equations are programmed into the device through floating-gate cells in the AND logic array that can be erased electrically.
◆ Pin and function compatible with all PAL® 20V8 devices
◆ Electrically erasable CMOS technology provides reconfigurable logic and full testability
◆ High-speed CMOS technology
— 5-ns propagation delay for “-5” version
— 7.5-ns propagation delay for “-7” version
◆ Direct plug-in replacement for a wide range of 24-pin PAL devices
◆ Programmable enable/disable control
◆ Outputs individually programmable as registered or combinatorial
◆ Peripheral Component Interconnect (PCI) compliant
◆ Preloadable output registers for testability
◆ Automatic register reset on power-up
◆ Cost-effective 24-pin plastic SKINNY DIP and 28-pin PLCC packages
◆ Extensive third-party software and programmer support
◆ Fully tested for 100% programming and functional yields and high reliability
◆ Programmable output polarity
◆ 5-ns version utilizes a split leadframe for improved performance
TYPE | DESCRIPTION | Select all |
---|---|---|
Supplier Device Package | 28-PLCC (11.51x11.51) | |
Series | PAL® | |
Package | Bulk | |
Product Status | Active | |
Programmable | Not Verified | |
Programmable Type | PAL | |
Number of Macrocells | 8 | |
Voltage - Input | 4.5V ~ 5.5V | |
Speed | 20 ns | |
Mounting Type | Surface Mount | |
Package / Case | 28-LCC (J-Lead) |
Lattice Semiconductor Corporation
Lattice Semiconductor leads in low-power programmability, solving complex challenges across networks, from Edge to Cloud. With a foothold in communication, computing, industry, autos, and consumers, they nurture lasting relationships, offering world-class support for unfettered innovation, crafting a secure, connected world.
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