ISPLSI 2128VE-180LT176

Complex Programmable Logic Devices Overview

The ispLSI 2128VE-180LT176 is a high-density, in-system programmable logic device featuring 6000 PLD gates and 128 I/O pins. It utilizes E2CMOS technology with a maximum operating frequency of 250 MHz and a propagation delay of 4.0 ns. The device operates at 3.3V, interfaces with standard 5V TTL devices, and includes 128 registers, eight dedicated inputs, and three dedicated clock pins. It supports IEEE 1149.1 boundary scan testing and offers non-volatile reprogrammability via the Boundary Scan Test Access Port (TAP).

Complex Programmable Logic Devices Feature Summary

• SuperFAST architecture with 6000 PLD gates, 128 registers, and high-speed global interconnect.
• E2CMOS technology enabling 250 MHz fmax and 4.0 ns tpd with 3.3V operation.
• In-system programmability via IEEE 1149.1 Boundary Scan TAP for non-volatile reconfiguration.
• Programmable open-drain outputs and slew rate control for flexible bus interface capabilities.

Complex Programmable Logic Devices Applications

• Complex address decoding and state machine implementation.
• High-speed counter designs utilizing wide input gating.
• Mixed-voltage system interfacing between 3.3V and 5V TTL components.
• Prototyping and manufacturing test using in-system programming.

Complex Programmable Logic Devices Procurement Notes

Verify that the LT176 suffix corresponds to the 176-pin Thin Quad Flat Package (TQFP) variant. Confirm the -180 speed grade matches the required 4.0 ns propagation delay specification. Ensure the design accounts for the 3.3V supply voltage requirements and 5V tolerant input characteristics.

Complex Programmable Logic Devices Selection Notes

Select this model for applications requiring 128 I/O pins and high-density logic within a compact package. Compare against the -250 speed grade if faster timing margins are necessary. Consider the 64-I/O version if pin count requirements are lower. Verify compatibility with existing Lattice design tools for ISP configuration.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 2128VE family of SuperFAST high-density PLDs. It is functionally and pinout compatible with the earlier ispLSI 2128V devices but offers enhanced performance through E2CMOS technology. The family provides a balance of PLD ease-of-use with FPGA-like density and flexibility.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 2128V is a direct functional and pinout compatible predecessor. For higher speed requirements, the ispLSI 2128VE-250 variant is available. No other specific substitute part numbers are documented in the provided source material.