ISPLSI 1048E-50LQI

Complex Programmable Logic Devices Overview

The ispLSI 1048E-50LQI is a high-density, in-system programmable logic device from Lattice Semiconductor. It utilizes E2CMOS technology to provide 8,000 PLD gates, 96 universal I/O pins, and 288 registers within a 128-pin TQFP package. The -50 speed grade supports a maximum operating frequency of 50 MHz with a typical propagation delay of 20 ns. Key features include non-volatile configuration, TTL-compatible inputs/outputs, four dedicated clock pins, and global output enable control.

Complex Programmable Logic Devices Feature Summary

• High Density: Contains 8,000 PLD gates, 48 Generic Logic Blocks (GLBs), and 288 registers.
• Performance: Supports up to 50 MHz operation with a worst-case propagation delay of 77 ns at industrial temperature.
• In-System Programmability: Allows reprogramming via ISP interface without removing the device from the circuit.
• Flexible I/O: 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
• Prototyping for larger FPGA architectures

Complex Programmable Logic Devices Procurement Notes

Verify that the specific ordering suffix matches the required package and temperature grade. The 'LQI' suffix indicates a 128-pin Thin Quad Flat Package (TQFP) with an industrial temperature range (-40°C to +85°C). Confirm the speed grade '-50' aligns with the design timing requirements before procurement.

Complex Programmable Logic Devices Selection Notes

Select the ispLSI 1048E-50LQI when designs require approximately 8,000 PLD gates and operate at frequencies up to 50 MHz. Ensure the application fits within the 96 I/O pin limit and requires non-volatile storage. For new designs, consider the functional superset ispLSI 1048EA as recommended by the manufacturer.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 1048E family of high-density CPLDs. It is functionally and pin-out compatible with the earlier ispLSI 1048C model but includes enhanced features such as two additional global output enable pins and two extra dedicated inputs. It serves as a bridge between standard PLDs and FPGAs.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 1048E-50LT is the lead-free equivalent in the same TQFP package. The ispLSI 1048E-50LQ is the commercial temperature version of the same package. For new designs, the ispLSI 1048EA series is the recommended successor.