ISPLSI 2128VE-250LQ160

Complex Programmable Logic Devices Overview

The ispLSI 2128VE-250LQ160 is a high-density, in-system programmable logic device (PLD) from Lattice Semiconductor. It features 6000 PLD gates, 128 registers, and 128 I/O pins housed in a 176-pin TQFP package. The device utilizes E2CMOS technology to achieve a maximum operating frequency of 250 MHz with a propagation delay of 4.0 ns. It operates at a 3.3V supply voltage while maintaining compatibility with standard 5V TTL devices. Key architectural elements include eight dedicated input pins, three dedicated clock inputs, and a Global Routing Pool for complete interconnectivity.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS technology delivering 250 MHz fmax and 4.0 ns tpd
• In-system programmability via IEEE 1149.1 Boundary Scan Test Access Port (TAP)
• 6000 PLD gates with 128 registers and wide input gating capabilities
• Programmable open-drain outputs supporting wired-OR bus arbitration

Complex Programmable Logic Devices Applications

• Complex state machine implementations requiring fast counters and address decoders
• Mixed-voltage system interfaces connecting 3.3V logic to 5V TTL devices
• Prototyping and reprogramming of soldered digital circuits via ISP

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'LQ160' corresponds to the 176-pin Thin Quad Flat Package (TQFP) variant as detailed in the signal location tables. Confirm that the '-250' speed grade matches the required 4.0 ns propagation delay specifications for the target design timing constraints.

Complex Programmable Logic Devices Selection Notes

Select this component when designs require high-density logic within a PLD architecture rather than an FPGA. Ensure the application benefits from non-volatile reprogrammability and the specific 128 I/O count. Verify that the 3.3V core voltage aligns with the system power budget and that 5V tolerant inputs are necessary for interfacing.

Complex Programmable Logic Devices Part Context

This device belongs to the ispLSI 2128VE family, which offers 100% functional and pinout compatibility with the previous ispLSI 2128V series. The VE variant introduces enhanced performance through E2CMOS technology and supports lead-free package options. It serves as a bridge between traditional PLDs and FPGAs, offering PLD ease of use with higher density.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 2128VE-250LQ160 is functionally and pinout compatible with the ispLSI 2128V-250LQ160. Designers migrating from the V series can utilize this part without schematic changes, provided the updated electrical characteristics and speed grades are validated.