EP324DC-25: Altera's High-Performance Programmable Logic Device | Specifications & Applications
The EP324DC-25 by Altera (now Intel) is a premium Complex Programmable Logic Device (CPLD) engineered for high-speed logic applications. With a 25ns maximum propagation delay and 24 macrocells, this EPLD delivers exceptional performance for timing-critical designs. Its 4.75V 5.25V operating voltage and 0 C to 70 C temperature range ensure reliability across industrial and commercial environments. The 40-CDIP through-hole package provides robust mechanical stability, making it ideal for prototyping and legacy system upgrades.
This device features 24 I/O pins with flexible macrocell configurations, supporting both combinatorial and sequential logic. The EP324DC-25's architecture enables efficient implementation of state machines, bus interfaces, and glue logic. Its erasable programmable nature allows for iterative design improvements without hardware changes. Engineers value its deterministic timing characteristics, crucial for synchronous system designs where signal integrity is paramount.
Key electrical specifications include 5V TTL compatibility and low-power CMOS technology. The macrocell structure provides dedicated flip-flops with clock enable and asynchronous reset functionality. Altera's proven EPLD technology in this device offers superior noise immunity compared to FPGA alternatives, making it suitable for electrically noisy environments like automotive or factory automation systems.
The EP324DC-25 excels in digital signal processing interfaces, communication protocol bridging, and industrial control logic. Its characteristics make it perfect for legacy system upgrades where 5V operation is required. Common applications include UART implementations, peripheral interfacing in 8/16-bit systems, and custom state machines for process control. The through-hole package simplifies maintenance in long-lifecycle equipment such as medical devices or aerospace systems.
For engineers seeking a reliable, high-speed programmable logic solution with moderate complexity, the EP324DC-25 remains a compelling choice. Its balance of performance, I/O capability, and proven reliability continues to support embedded designs requiring deterministic operation. Altera's comprehensive development tools and documentation further enhance its value for both prototyping and production implementations.
