Lattice ISPGDX160VA-7B208-9I: A Comprehensive Overview of the In-System Programmable Generic Digital Crosspoint FPGA
The Lattice ISPGDX160VA-7B208-9I represents a pivotal component within the landscape of programmable logic, specifically designed as a Generic Digital Crosspoint (GDX) switch. This device is engineered to provide a highly flexible and efficient solution for signal interconnections and routing in a wide array of digital systems, from communications infrastructure to industrial control and computing applications.
As a member of Lattice Semiconductor's renowned In-System Programmable (ISP) GDX family, this model offers significant advantages. The core functionality of a digital crosspoint is to allow any input to be connected to any output, creating a fully configurable signal routing matrix. The ISPGDX160VA features 160 universal I/O cells, providing an extensive number of connection points for complex system designs. This high density makes it ideal for applications requiring significant data path switching, bus arbitration, signal gating, or level translation.
The "7B208" in the part number denotes the specific package (208-ball BGA) and the "-9I" suffix indicates the industrial-grade temperature range, ensuring reliable operation in demanding environments. A key architectural strength of this FPGA is its non-volatile, Flash-based configuration memory. Unlike SRAM-based FPGAs that require an external boot PROM, the ISPGDX devices retain their programming instantly upon power-up, simplifying board design and enhancing system security and reliability.
The in-system programmability is a cornerstone feature, enabled through the IEEE 1149.1 (JTAG) interface. This allows for rapid design iterations, field upgrades, and easy debugging without physically removing the device from the circuit board. Designers can implement complex interconnect logic using Lattice's intuitive development tools, drastically reducing development time compared to designing with fixed-function ASICs or discrete logic ICs.
Internally, the device is structured around a grid of programmable switches surrounding the I/O blocks. Each I/O cell can be individually configured for various logic functions and signal standards, offering tremendous design flexibility. This programmability enables the consolidation of multiple discrete logic devices into a single, compact chip, leading to reduced board space, lower overall system cost, and improved power efficiency.
ICGOOODFIND: The Lattice ISPGDX160VA-7B208-9I stands out as a highly versatile and robust solution for dynamic digital signal routing. Its combination of high I/O count, non-volatile configuration, and industrial-grade durability makes it an indispensable component for engineers seeking to create adaptable, high-performance, and cost-effective digital systems.
Keywords: In-System Programmable (ISP), Generic Digital Crosspoint (GDX), Signal Routing, Non-volatile FPGA, JTAG Interface.
