ISPLSI 1048E-125LT

Complex Programmable Logic Devices Overview

The ispLSI 1048E-125LT is a high-density, in-system programmable logic device from Lattice Semiconductor. It features E2CMOS technology with 8,000 PLD gates, 96 universal I/O pins, and 288 registers. The -125 speed grade supports a maximum operating frequency of 125 MHz with a typical propagation delay of 7.5 ns. Operating on a single 5V supply, it includes four dedicated clock inputs, two global output enable pins, and twelve dedicated inputs within a 128-pin TQFP package.

Complex Programmable Logic Devices Feature Summary

• High Density Logic: Contains 48 Generic Logic Blocks (GLBs), 288 registers, and a Global Routing Pool for complete interconnectivity.
• High Performance: Achieves fmax = 125 MHz and tpd = 7.5 ns using non-volatile E2CMOS technology.
• In-System Programmability: Supports ISP via a 5V-only interface, allowing reprogramming of soldered devices.
• Flexible I/O Configuration: Features 96 universal I/O pins and 12 dedicated inputs with programmable slew rate control.

Complex Programmable Logic Devices Applications

• Complex glue logic replacement
• Address decoding and state machine implementation
• Fast counter designs
• Reconfigurable system interconnects

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'LT' corresponds to the 128-pin Thin Quad Flat Package (TQFP) as defined in the ordering guide. Confirm that the design utilizes the commercial temperature range unless an industrial variant is explicitly required. Ensure the 5V power supply constraints are met for both operation and programming.

Complex Programmable Logic Devices Selection Notes

Select the -125 grade for timing requirements up to 125 MHz. For lower speed needs, consider the -100 or -90 variants which offer longer propagation delays. The device is functionally compatible with the ispLSI 1048C but offers enhanced pin locking and additional global outputs. Use the ispLSI 1048EA for new designs if available.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 1000E family of complex programmable logic devices. It serves as a functional superset to the earlier ispLSI 1048 architecture, adding two global output enable pins and two dedicated inputs while maintaining pin-out compatibility.

Complex Programmable Logic Devices Replacement Considerations

The datasheet recommends using the ispLSI 1048EA for new designs. Direct pin-compatible replacements within the same speed grade include the ispLSI 1048E-125LQ (PQFP package).