Lattice LC4064V-10TN100I: A Comprehensive Technical Overview of the Low-Power CPLD

In the realm of digital logic design, Complex Programmable Logic Devices (CPLDs) remain a cornerstone for "glue logic," bus interfacing, and power-sensitive control applications. The Lattice Semiconductor LC4064V-10TN100I stands as a quintessential example of this category, engineered to deliver a robust blend of density, performance, and remarkably low power consumption. This overview delves into the architecture, key features, and target applications of this versatile device.

At its core, the LC4064V-10TN100I is built upon Lattice's mature and highly efficient non-volatile, in-system programmable (isp) architecture. This technology allows the device to be reprogrammed on the board, significantly streamlining the development and debugging process. The "4064" in its name denotes 64 macrocells, providing a sufficient level of logic integration for a wide array of functions. These macrocells are interconnected via a global routing pool (GRP), ensuring predictable timing and high-performance signal routing across the device.

A defining characteristic of this CPLD is its ultra-low power operation. Fabricated on a low-power process technology, it features a static idle mode that draws minimal current, making it exceptionally suitable for battery-powered and portable electronics. The device supports a wide operating voltage range from 3.0V to 3.6V, aligning with standard 3.3V system environments. The "-10" speed grade indicates a maximum pin-to-pin delay of 10ns, enabling it to handle clock frequencies high enough for numerous control and interfacing tasks.

The physical package is a 100-pin Thin Plastic Quad Flat Pack (TQFP). This surface-mount package offers a compact footprint while providing a substantial number of user I/O pins (up to 80), facilitating connections to external processors, memory, sensors, and other peripherals. The robust I/O banks are compliant with various standards, offering flexibility in interfacing with different logic levels.

The programming and design flow for this CPLD is supported by Lattice's ispLEVER Classic design software. This environment provides a complete suite of tools for design entry, synthesis, place-and-route, and programming, allowing engineers to quickly implement and deploy their logic designs.

Target Applications:

The combination of low power, medium density, and reprogrammability makes the LC4064V-10TN100I ideal for a diverse set of applications, including:

Power Management Control: Sequencing and monitoring in compute and communication systems.

Portable and Battery-Operated Devices: Where minimizing power drain is critical.

System Interface Logic: Acting as a "bridge" between components with different bus protocols or timing requirements (e.g., between a CPU and peripheral devices).

Serial Communication Ports: Implementing or offloading interfaces like I2C, SPI, or UART.

Industrial Control Systems: Providing reliable and deterministic logic for automation and monitoring.

ICGOODFIND Summary: The Lattice LC4064V-10TN100I is a highly capable and enduring CPLD solution that excels in low-power, control-oriented applications. Its balanced architecture, featuring 64 macrocells and 80 I/O pins in a compact TQFP package, offers designers a reliable and flexible platform for implementing custom logic, thereby reducing system component count and enhancing overall design efficiency.

Keywords: Low-Power CPLD, In-System Programmable, 64 Macrocells, 3.3V Operation, TQFP Package.