LC4128V-5TN128C High-Performance CPLD | Lattice Semiconductor | 128 Macrocells
The LC4128V-5TN128C from Lattice Semiconductor is a cutting-edge Complex Programmable Logic Device (CPLD) designed for high-speed, low-power embedded applications. With 128 macrocells and a compact 128-TQFP package, this IC delivers exceptional logic density and flexibility. Its 5ns maximum propagation delay ensures rapid signal processing, while the 3V to 3.6V internal voltage range makes it compatible with modern low-power designs. The device features 92 I/O pins and supports In-System Programmability (ISP), enabling real-time updates without hardware modifications. Engineered for reliability, it operates flawlessly in temperatures ranging from 0 C to 90 C, making it suitable for industrial and automotive environments.
This CPLD stands out with its 8 logic blocks and advanced architecture, allowing designers to implement complex state machines, glue logic, and bus interfaces efficiently. The surface-mount 128-LQFP package (14x14mm) optimizes board space while ensuring robust mechanical stability. Lattice Semiconductor's proven technology ensures low static power consumption (<1mA typical) and high noise immunity, critical for mission-critical systems. The LC4128V-5TN128C also supports multiple I/O standards (LVTTL, LVCMOS) and features programmable slew rate control for signal integrity management.
Key technical specifications include a 5V-tolerant I/O capability, allowing seamless interfacing with legacy systems. The device offers 64 registers per macrocell with clock enable and asynchronous reset functionality. Security features include bitstream encryption and read protection, safeguarding intellectual property. Designers benefit from Lattice's ispLEVER design tools, which support Verilog and VHDL for streamlined development. The CPLD's deterministic timing model eliminates routing delays, ensuring predictable performance across temperature variations.
The LC4128V-5TN128C excels in diverse applications including telecommunication infrastructure (protocol bridging, line card control), industrial automation (PLC I/O expansion, motor control), and consumer electronics (display controllers, peripheral interfaces). Automotive systems leverage its reliability for dashboard clusters and sensor interfaces. Medical devices utilize its precision for patient monitoring equipment. The combination of high speed (fMAX > 200MHz), reprogrammability, and small footprint makes it ideal for space-constrained, performance-driven designs across industries.
Lattice Semiconductor provides comprehensive support for the LC4128V-5TN128C, including reference designs, application notes, and a global distribution network. The device is RoHS compliant and undergoes rigorous quality testing (AEC-Q100 for automotive variants). For engineers seeking a balance between FPGA flexibility and CPLD simplicity, this 128-macrocell solution delivers optimal price/performance. Its legacy compatibility (5V tolerance) and modern features (ISP, low power) create a unique value proposition for both new designs and system upgrades in today's connected world.
