ISPLSI 1048E-50LQ

Complex Programmable Logic Devices Overview

The ispLSI 1048E-50LQ is a high-density programmable logic device from Lattice Semiconductor, featuring 8,000 PLD gates and 288 registers. It operates with a maximum frequency of 50 MHz and a propagation delay of 20 ns. The device utilizes E2CMOS technology for non-volatile in-system programming at 5V. It includes 96 universal I/O pins, 12 dedicated inputs, four dedicated clock inputs, and two global output enable pins. The architecture consists of 48 Generic Logic Blocks interconnected by a Global Routing Pool.

Complex Programmable Logic Devices Feature Summary

• High-density logic with 8,000 PLD gates and 288 registers
• In-system programmability via ISP™ using only 5V power
• TTL-compatible inputs and outputs with programmable slew rates
• Functionally and pin-out compatible with the ispLSI 1048C

Complex Programmable Logic Devices Applications

• Complex glue logic replacement
• State machine implementation
• Address decoding systems
• Fast counter designs

Complex Programmable Logic Devices Procurement Notes

Verify that the component matches the specific speed grade (-50) and package type (LQ indicates 128-pin PQFP). Confirm whether lead-free or standard packaging is required, as ordering suffixes define these physical attributes. Ensure the design uses the recommended ispLSI 1048EA for new projects if available.

Complex Programmable Logic Devices Selection Notes

Select this model when a 50 MHz operating speed and 20 ns propagation delay are sufficient for the application. It provides 96 I/Os and 288 registers within a 128-pin package. Consider the -70 or -125 variants if higher performance is needed, or the -100/-125 variants for faster timing margins.

Complex Programmable Logic Devices Part Context

This part belongs to the ispLSI 1000E family, which is an enhanced version of the ispLSI 1048 architecture. The 'E' designation adds two global output enable pins and two additional dedicated inputs compared to the original 1048. The datasheet explicitly recommends using the ispLSI 1048EA for new designs.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 1048E-50LQ is functionally and pin-out compatible with the ispLSI 1048C. For new designs, the ispLSI 1048EA series is recommended as a functional superset.