ISPLSI 5512VE-125LB388I

Complex Programmable Logic Devices Overview

The ispLSI 5512VE-125LB388I is a high-density, in-system programmable logic device from the Lattice ispLSI 5000VE family. It features 512 macrocells and 24,000 PLD gates within a 388-pin fine-pitch Ball Grid Array (fpBGA) package. 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 155 MHz and a propagation delay of 6.5 ns. It utilizes E2CMOS technology for non-volatile configuration and supports IEEE 1149.1 boundary scan testing.

Complex Programmable Logic Devices Feature Summary

• High Density Architecture: Contains 512 macrocells organized into 16 Generic Logic Blocks (GLBs), each with 32 macrocells and a SuperWIDE Input Gating structure supporting up to 68 inputs per block.
• In-System Programmability: Supports electrically erasable and reprogrammable logic via the IEEE 1149.1 JTAG interface, allowing design updates without removing the device from the PCB.
• Flexible I/O Configuration: Features independent VCCIO pins allowing individual I/O banks to operate at either 3.3V or 2.5V while the core logic remains powered by VCC.
• Global Interconnect: Utilizes a single-level Global Routing Pool (GRP) for fast signal distribution across the device, minimizing routing delays.

Complex Programmable Logic Devices Applications

• Complex state machine implementations requiring high-speed global clocking.
• Address decoding and bus bridging in industrial control systems.
• Prototyping high-density logic designs prior to ASIC implementation.
• Interface translation between 5V TTL devices and 3.3V/2.5V logic families.

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'LB388I' corresponds to the 388-pin fpBGA package and Industrial temperature range (-40°C to +85°C). Confirm that the -125 speed grade matches the required 6.5 ns propagation delay specification for the target application timing constraints.

Complex Programmable Logic Devices Selection Notes

Select this component when designs require more than 256 I/Os but fit within the 512 macrocell limit of the 5000VE family. Ensure the design fits within the 768 product terms available per GLB after Product Term Sharing Array optimization. Verify that the 388-pin footprint is compatible with the PCB layout capabilities.

Complex Programmable Logic Devices Part Context

This part belongs to the ispLSI 5000VE family, which succeeded the 5000VA series. Unlike the VA series, the VE family removes T-type flip-flop options and programmable output-delay skew features to optimize performance and density. It shares pinouts with other 5000VE variants like the 5384VE but offers higher logic capacity.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements within the same package are limited due to pinout variations across the family. The ispLSI 5384VE shares the 388-pin package but has fewer macrocells. Modern FPGA upgrades may require significant schematic redesign due to architectural differences.