Altera EPM7032SLC44-6N CPLD - Obsolete but Reliable In-System Programmable Logic Device

The Altera EPM7032SLC44-6N is a high-performance Complex Programmable Logic Device (CPLD) from Intel's (formerly Altera) MAX 7000S family. Despite being marked as obsolete, this device remains a popular choice for engineers working on legacy systems, industrial automation, and custom logic implementations. With its in-system programmability, 6ns propagation delay, and 32 macrocells, the EPM7032SLC44-6N offers a perfect balance of speed and flexibility for demanding digital logic applications.

This CPLD features 600 usable gates organized into 2 logic blocks with 36 input/output pins, making it suitable for medium-complexity designs. The device operates on a 5V power supply (4.75V to 5.25V range) and comes in a compact 44-pin PLCC (Plastic Leaded Chip Carrier) package. The surface-mount design (44-LCC J-Lead) ensures easy integration into modern PCB layouts while maintaining compatibility with existing designs. With an operating temperature range of 0 C to 70 C, this component is reliable for commercial and industrial applications.

The EPM7032SLC44-6N stands out for its impressive speed-grade (-6N indicates 6ns maximum pin-to-pin delay), making it capable of handling high-speed logic operations. The 32 macrocells can be configured for either combinatorial or sequential logic, providing design flexibility. Each macrocell includes programmable XOR gates for efficient logic implementation and expandable product terms for complex functions. The device supports JTAG boundary-scan testing (IEEE Std. 1149.1) for simplified system testing and debugging.

Typical applications for the Altera EPM7032SLC44-6N include bus interface logic, state machine implementations, address decoding, and system glue logic. It's particularly valuable in industrial control systems, telecommunications equipment, and consumer electronics where custom logic solutions are required. The in-system programmability (ISP) feature allows for field upgrades and design modifications without removing the chip from the circuit board, significantly reducing development time and maintenance costs.

While newer CPLD alternatives exist, the EPM7032SLC44-6N continues to be sought after for legacy system maintenance and specific design requirements. Its combination of speed, reliability, and proven architecture makes it a trusted solution for engineers worldwide. For those needing this component, we offer guaranteed authentic parts with full traceability to ensure your projects maintain their original design integrity and performance characteristics.