ISPLSI 1048-70LQ

Complex Programmable Logic Devices Overview

The ispLSI 1048-70LQ is a discontinued high-density programmable logic device from Lattice Semiconductor. It features 8000 PLD gates, 96 I/O pins, and 288 registers within a 120-pin PQFP package. The device utilizes non-volatile E2CMOS technology for in-system programming at 5V. Key electrical specifications include a maximum operating frequency of 70 MHz and a typical propagation delay of 18 ns. It operates within a commercial temperature range of 0°C to +70°C.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 8000 PLD gates and 48 Generic Logic Blocks (GLBs)
• Non-volatile E2CMOS technology enabling in-system reprogrammability
• TTL-compatible inputs and outputs with 5V operation
• Global Routing Pool (GRP) providing complete interconnectivity

Complex Programmable Logic Devices Applications

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

Complex Programmable Logic Devices Procurement Notes

All devices in the ispLSI 1048 family are officially discontinued per Product Change Notification #13-10. Verification of current availability should be conducted through authorized distributors or secondary market channels, as original manufacturer production has ceased.

Complex Programmable Logic Devices Selection Notes

Select the -70 speed grade for applications requiring up to 70 MHz operation with an 18 ns propagation delay. Ensure the design fits within the 96 I/O pin limit and 288 register capacity. Verify that the 120-pin PQFP package footprint matches the target PCB layout constraints.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 1048 series, which represents Lattice's high-density CPLD offerings based on E2CMOS technology. The series includes variants with different speed grades (-50, -70, -80) and industrial temperature ratings (-50LQI).

Complex Programmable Logic Devices Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation due to the discontinuation status.