ISPLSI1048E-50LT

Overview

The ISPLSI1048E-50LT is a Complex Programmable Logic Device (CPLD) belonging to the ispLSI 1048E family manufactured by Lattice Semiconductor. It features 192 macrocells and supports up to 96 I/O pins within a 128-pin PQFP package. The device operates at a maximum frequency of 50 MHz with a typical propagation delay of 22 ns. Designed for surface-mount applications, it functions within a commercial temperature range of 0°C to +70°C using a single 5V power supply.

Feature Summary

• Architecture: 192 macrocells with high-density logic capabilities
• Interface: Supports up to 96 general-purpose I/Os
• Performance: Maximum operating frequency of 50 MHz
• Package: 128-pin Plastic Quad Flat Package (PQFP)

Applications

• High-speed digital logic control systems
• Bus bridging and protocol conversion
• Address decoding and memory interfacing

Part Context

This component is part of the ispLSI 1048E series, an evolution of the earlier ispLSI 1048 line. While the standard 1048C variant is listed as obsolete in some distributor records, the 'E' suffix denotes specific process or feature enhancements within the same functional family. The LT suffix indicates the commercial temperature grade and PQFP packaging.

Replacement Considerations

Direct pin-compatible replacements include other variants within the ispLSI 1048E family, such as the ISPLSI1048E-50LQI. Designers should verify that the replacement part maintains the required 50 MHz speed grade and 192 macrocell count.