Lattice LC4064V-25TN100C: A Comprehensive Technical Overview of the Low-Power CPLD

The Lattice LC4064V-25TN100C stands as a prominent member of the ultra-low-power ispMACH® 4000ZE CPLD family from Lattice Semiconductor. This device is engineered to deliver a compelling blend of high performance, remarkably low power consumption, and high integration in a compact form factor, making it an ideal solution for a vast array of portable, consumer, and communication applications.

At its core, this CPLD features 64 macrocells, organized in a flexible logic architecture that efficiently implements complex combinatorial and sequential logic. The "V" in its nomenclature signifies its very low-power operating profile, a critical characteristic enabled by an advanced 1.8V core voltage. This dramatically reduces static and dynamic power consumption compared to traditional 3.3V or 5V CPLDs, which is paramount for battery-operated devices.

The device operates at a speed grade of "-25," indicating a maximum pin-to-pin delay of 5.0 ns, allowing for high-speed logic processing. It supports a wide range of I/O voltage standards, including LVCMOS 3.3V, 2.5V, 1.8V, and 1.5V, offering superior flexibility for interfacing with other components in a mixed-voltage system environment.

Housed in a 100-pin Thin Quad Flat Pack (TQFP) package, the LC4064V-25TN100C provides 63 user I/O pins, offering a high I/O-to-logic ratio. This extensive I/O availability is crucial for managing numerous control signals, GPIOs, and interface buses like SPI and I²C. The device is also in-system programmable (ISP) via the industry-standard JTAG (IEEE 1149.1) interface, facilitating easy and rapid prototyping, testing, and field upgrades without removing the chip from the circuit board.

Its non-volatile E²CMOS technology ensures that the programmed configuration is retained instantly upon power-up, eliminating the need for an external boot PROM. Furthermore, it incorporates advanced features such as on-chip clock management with up to two clock resources and a robust set of system-level features, including hot-socketing and open-drain output support.

ICGOOODFIND: The Lattice LC4064V-25TN100C is a highly optimized CPLD that successfully balances logic density, speed, and ultra-low power consumption. Its 1.8V core, extensive I/O capabilities, and small package size make it an exceptional choice for designers focused on power-sensitive and space-constrained applications, from handheld medical devices and portable electronics to system management functions in larger embedded systems.

Keywords: Low-Power CPLD, 1.8V Core Voltage, 64 Macrocells, In-System Programmable (ISP), TQFP Package.