EPM7064SLC84-7

Updated: 2026-09-15

Overview

The EPM7064SLC84-7 is a member of Altera's MAX 7000S family of CPLDs, designed for high-speed logic integration. With 64 macrocells and a 7ns propagation delay, it targets applications requiring rapid reconfigurability and moderate logic density. The device uses a PLCC-84 package, facilitating prototyping and legacy system upgrades. As a non-volatile CPLD, it retains configuration without external memory, simplifying board design. It operates at 5V, making it compatible with older industrial systems. Though newer low-voltage alternatives exist, this model remains relevant for maintenance and specific B2B use cases.

Structure and Working Principle

The EPM7064SLC84-7 integrates programmable logic blocks interconnected via a central switch matrix. Each macrocell contains a programmable AND/OR array and a flip-flop, enabling combinational or sequential logic. The device is configured via JTAG or parallel programming interfaces. On power-up, configuration data loads from internal EEPROM, ensuring instant operation. The 7ns timing ensures reliable performance in clocked systems. Its CMOS architecture balances speed and power efficiency, with typical standby currents under 50mA.

Key Features

Speed is a standout feature, with 7ns pin-to-pin delays supporting clock frequencies up to 100MHz. The 64 macrocells provide equivalent logic capacity to ~1,200 gates, suitable for glue logic or state machines. Other features include 5V tolerance, hot-socketing capability, and programmable slew rate control. The PLCC package offers through-hole or socket mounting options, though surface-mount alternatives (e.g., TQFP) are now more common in modern designs.

Application Areas

Common applications include industrial PLCs, legacy communication interfaces, and automotive control modules. Its deterministic timing suits real-time systems like sensor interfaces or pulse-width modulation. In B2B contexts, it appears in inventory management systems, test equipment, and military/aerospace subsystems where 5V operation is mandated. Designers also use it for prototyping before migrating to newer CPLDs or FPGAs.

Maintenance and Precautions

Avoid exposing the device to voltages exceeding 5.5V, which may damage internal EEPROM. Use standard ESD precautions during handling. For long-term storage, keep in moisture-resistant packaging with desiccant. If reprogramming frequently, note the EEPROM's endurance rating (typically 100+ cycles). Thermal management is rarely needed due to low power dissipation, but ensure adequate airflow in high-density boards.

B2B Procurement Guide

When sourcing, verify lifecycle status—some distributors classify this as obsolete but maintain stock. MOQ varies; small batches (<100 units) often carry 20-30% price premiums. Lead times range from 2-8 weeks for non-stocked items. Consider alternatives like the EPM7064STC100-10 for surface-mount designs. Always request factory-sealed packaging to avoid counterfeit risks. For high-reliability applications, opt for industrial-grade (-I suffix) variants with extended temperature ranges.