ISPLSI 5512VE-80LB388I

Overview

The ispLSI 5512VE-80LB388I is a high-density, in-system programmable logic device from the Lattice ispLSI 5000VE family. It features 24,000 PLD gates and 512 macrocells organized into sixteen Generic Logic Blocks (GLBs). The device operates on a 3.3V supply with user-selectable 3.3V or 2.5V I/O levels. Key electrical specifications include a maximum operating frequency of 80 MHz and a typical propagation delay of 6.5 ns. It utilizes E2CMOS technology for non-volatile configuration and supports IEEE 1149.1 boundary scan testing.

Feature Summary

• High Density Architecture: Contains 512 macrocells and 24,000 PLD gates distributed across 16 SuperWIDE Generic Logic Blocks.
• In-System Programmability: Supports 3.3V ISP via IEEE 1149.1 JTAG interface for manufacturing yield improvement and field debugging.
• Flexible I/O Configuration: Features independent VCCIO pins allowing individual I/O banks to operate at 3.3V or 2.5V while core logic remains at 3.3V.
• Advanced Clocking: Includes four dedicated clock inputs (CLK0-CLK3) with global routing pool support for low-skew clock distribution.

Applications

• Complex state machine implementations requiring fast counters and address decoders.
• High-speed data bus bridging and protocol conversion between standard 5V TTL and 3.3V/2.5V devices.
• Industrial control systems utilizing in-system reprogrammability for rapid design iteration.
• Test and measurement equipment leveraging IEEE 1149.1 boundary scan capabilities.

Procurement Notes

Verify component authenticity through authorized distributors as this series may be end-of-life. Confirm package integrity and pin alignment for the 388-pin BGA variant. Ensure programming tools support the specific ispLSI 5000VE architecture. Check for moisture sensitivity handling requirements prior to surface mount assembly.

Selection Notes

Select the -80 speed grade when designs require operation up to 80 MHz. Choose the LB388 suffix for the 388-pin Ball Grid Array package offering up to 197 usable I/O pins. Consider the VE family over VA if product term reset simplification and cost efficiency are priorities. Verify that the target application fits within the 512 macrocell capacity and 24,000 gate limit.

Part Context

This component belongs to the ispLSI 5000VE family, which succeeded the ispLSI 5000VA series. It shares similar power and ground pin locations but differs in internal logic optimization, specifically removing T-type flip-flop options and simplifying product term reset logic. It is not JEDEC compatible with the VA family despite architectural similarities.

Replacement Considerations

Direct pin-to-pin replacements within the same package are limited due to architectural differences. The ispLSI 5512VE-80LB388I may be substituted with other 5000VE family members like the ispLSI 5384VE if I/O count permits, though macrocell density will differ. Cross-family migration to newer Lattice FPGA families requires significant design retargeting.