Lattice Semiconductor ISPLSI2064A-80LTN100: A High-Density Programmable Logic Device for Demanding Applications

In the realm of digital logic design, the need for flexibility, integration, and performance is paramount. The Lattice Semiconductor ISPLSI2064A-80LTN100 stands as a quintessential solution from the high-density ispLSI 2000A family, engineered to meet the rigorous demands of complex applications. This device combines a robust architecture with in-system programmability, offering designers a powerful tool for prototyping and production.

At its core, the ISPLSI2064A-80LTN100 is a High-Density Programmable Logic Device (HDPLD) featuring 64 macrocells. This density allows for the integration of numerous logic gates into a single, compact package, significantly reducing board space and system complexity. The `-80` suffix denotes a pin-to-pin delay of 8.0 ns, enabling high-speed operation critical for timing-sensitive applications such as data processing, telecommunications, and real-time control systems. Housed in a thin quad flat pack (TQFP) with 100 pins (LTN100), it is well-suited for space-constrained environments.

A key advantage of this device is its In-System Programmability (ISP). Utilizing the industry-standard IEEE 1149.1 (JTAG) interface, the logic functionality can be reprogrammed directly on the circuit board. This capability drastically accelerates development cycles, facilitates easy design updates, and simplifies field upgrades, eliminating the need to physically replace hardware.

The internal architecture is built around a Global Routing Pool (GRP) that provides a highly interconnected pathway between all functional blocks. This structure ensures efficient signal routing and maximizes logic utilization. The device is comprised of multiple Generic Logic Blocks (GLBs), each containing macrocells that can be configured for a wide range of combinatorial and sequential logic functions. Additionally, it features dedicated clock management resources with multiple clock inputs and programmable dividers, offering precise control over timing constraints.

The combination of high speed, significant logic capacity, and reprogrammability makes the ISPLSI2064A-80LTN100 ideal for a multitude of demanding roles. It is commonly deployed in complex state machine control, high-speed data routing, bus interfacing (e.g., PCI bridging), and pre-processing tasks within larger digital systems.

ICGOODFIND summarizes: The Lattice ispLSI2064A-80LTN100 is a high-performance, high-density CPLD that delivers a potent mix of speed, logic integration, and unparalleled reconfigurability, making it a enduringly relevant component for sophisticated digital design.

Keywords: High-Density Programmable Logic, In-System Programmability (ISP), 8.0ns Speed, JTAG Interface, Complex State Machine.