ISPLSI 1048E-70LQNI

Complex Programmable Logic Devices Overview

The ispLSI 1048E-70LQNI is a high-density programmable logic device from Lattice Semiconductor, utilizing E2CMOS technology for non-volatile in-system programmability. It features 8,000 PLD gates, 288 registers, and 96 universal I/O pins with twelve dedicated inputs. The -70 speed grade supports a maximum operating frequency of 70 MHz and a propagation delay of 15 ns. Designed for commercial operation within a 4.75V to 5.25V supply range, it integrates four dedicated clock pins and two global output enable pins.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 8,000 PLD gates and 288 registers
• In-system programmability via ISP™ using only 5V power
• TTL-compatible inputs and outputs with configurable slew rates
• Global Routing Pool (GRP) providing complete interconnectivity

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 the specific ordering suffix 'LQNI' against current manufacturer documentation to confirm package type and temperature grade. Confirm availability status as older speed grades may be subject to lifecycle changes. Ensure design tools support the legacy ispLSI 1000E family for programming and verification.

Complex Programmable Logic Devices Selection Notes

Select this component when a 70 MHz performance level is required with high pin count flexibility. The -70 grade offers a balance between speed and power consumption compared to faster variants. Verify that the application environment remains within the commercial temperature range (-40°C to +85°C) specified for the 'I' suffix.

Complex Programmable Logic Devices Part Context

This device belongs to the ispLSI 1000E family, which serves as a functional superset of the earlier ispLSI 1048 architecture. It adds enhanced features such as additional global output enables and dedicated inputs while maintaining compatibility with existing designs. The family emphasizes ease of use combined with FPGA-like density.

Complex Programmable Logic Devices Replacement Considerations

The datasheet explicitly recommends using the ispLSI 1048EA for new designs. For direct replacements, consider other speed grades within the same package, such as the ispLSI 1048E-50LQNI or ispLSI 1048E-90LQNI, ensuring timing requirements are met.