ISPLSI 1048E-100LT

Complex Programmable Logic Devices Overview

The ispLSI 1048E-100LT is a high-density programmable logic device from Lattice Semiconductor, housed in a 128-pin Thin Quad Flat Package (TQFP). It features 8,000 PLD gates, 96 universal I/O pins, and 288 registers. The device utilizes E2CMOS technology with a maximum operating frequency of 100 MHz and a propagation delay of 10 ns. Key architectural elements include a Global Routing Pool (GRP), six Megablocks, and four dedicated clock inputs. It supports in-system programming via ISP at 5V only.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 8,000 PLD gates and 288 registers
• In-system programmability using 5V-only ISP interface
• Non-volatile E2CMOS technology for data retention
• Programmable output slew rate control to minimize switching noise

Complex Programmable Logic Devices Applications

• Glue logic replacement in complex digital systems
• State machine implementation requiring fast counters
• Address decoding applications utilizing wide input gating
• Prototyping designs requiring reprogrammable logic

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix matches the required timing constraints. Confirm package type corresponds to the LT designation for TQFP. Check for lead-free status if environmental compliance is required. Ensure design tools support the legacy ispLSI family architecture.

Complex Programmable Logic Devices Selection Notes

Select this model when a 100 MHz maximum frequency is sufficient for the target application. Compare against the -125 variant if higher speed is needed or the -70 variant for lower power consumption. Consider the functional compatibility with the older ispLSI 1048C if migrating existing designs.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 1048E family, which serves as an enhanced version of the ispLSI 1048. It adds two global output enable pins and additional dedicated inputs compared to its predecessor. Lattice recommends using the ispLSI 1048EA for new designs due to updated features.

Complex Programmable Logic Devices Replacement Considerations

The datasheet explicitly advises using the ispLSI 1048EA for new designs. For direct pin-compatible replacements within the same family, consider the ispLSI 1048C, though it lacks the enhanced features of the E series.