ISPLSI 5256VE-125LT128

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Complex programmable logic devices (CPLDs) are a class of logic devices that many designers & engineers are turning to as a cost-effective way of replacing older, larger and more power-hungry components. The ISPLSI 5256VE-125LT128 is a CPLD from ISP Logic Solutions Inc. (ISPLSI) that is designed for a wide range of embedded applications. This device is versatile, providing many features and on-board memories.

The ISPLSI 5256VE-125LT128 is a 5V-powered device with 128 macrocells. It features EEPROM and RAM memories; configurable address decode logic for interfacing the memories; two synchronous clocks; twelve three-state output pins; and 512 bits of user logic fuse register. The user’s logic can be configured in multiple ways, making it suitable for small projects or quick prototyping.

The device is configured with the ISPLSI software, which provides a graphical programming environment as well as a library of standard functional blocks. It enables designers to quickly build embedded applications, such as microcontrollers, serial communications, real-time clocks, data acquisition systems and stepper motor controllers. The software also features debugging tools and live-simulation capabilities that help ensure the accuracy of the programmable logic.

With its ability to support up to five address zones and its dedicated bus buffering interface, the ISPLSI 5256VE-125LE128 supports higher address-space utilization than similar CPLDs. This makes it useful for larger embedded applications with high address usage. It also provides flexibility and system-level performance.

The ISPLSI 5256VE-125LE128 is powered by an 8-bit core processor, providing performance with lower power consumption and better signal integrity. The integrated 1K EEPROM is used to store configuration bits and can be programmed in-system with the ISPLSI software. The device also includes 64K of fast-access RAM memory for data storage, for a total of 65,536 bytes of fast storage.

In addition to the ISPLSI software, the device is supported by a range of development tools and software packages. These include an ISPLSI compiler, assembler, and linker, as well as an ISPLSI Emulator/Debugger, which allows users to debug their programs in real-time.

The ISPLSI 5256VE-125LE128 is a highly configurable and programmable device that can be used in a wide range of embedded applications. Its advanced features make it suitable for a variety of tasks, such as microcontrollers, data acquisition systems and stepper motor controllers. It is also a cost-effective solution for designers and engineers looking for an upgrade or replacement for their old logic devices.

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