ISPLSI 2128VE-100LT100

Complex Programmable Logic Devices Overview

The ispLSI 2128VE-100LT100 is a high-density, in-system programmable logic device from Lattice Semiconductor. It features 6000 PLD gates, 128 macrocells, and 28 I/O pins within a 100-pin LTQFP package. The device operates at a maximum frequency of 135 MHz with a propagation delay of 4 ns. It utilizes 3.3V E2CMOS technology for non-volatile reprogrammability via IEEE 1149.1 boundary scan. Key architectural elements include 32 Generic Logic Blocks (GLBs), three dedicated clock inputs, and eight dedicated input pins.

Complex Programmable Logic Devices Feature Summary

• High Performance: Supports up to 135 MHz operation with 4 ns propagation delay using E2CMOS technology.
• In-System Programmability: Allows reprogramming via JTAG (IEEE 1149.1) without removing the device from the circuit.
• Mixed Voltage Interface: 3.3V core architecture interfaces directly with standard 5V TTL devices.
• Flexible Architecture: Contains 128 registers, three dedicated clock pins, and individually programmable open-drain outputs.

Complex Programmable Logic Devices Applications

• Complex glue logic replacement in mixed-voltage systems
• Address decoding and bus arbitration logic
• State machine implementation for industrial control
• Fast counter applications requiring wide input gating

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as lead-free options are available but may vary by production batch. Check for obsolescence notices or lifecycle changes prior to procurement planning.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring 128 macrocells and 28 I/Os in a compact 100-pin surface mount package. Ensure voltage levels match the 3.0V to 3.6V operating range. Consider the -100 speed grade if timing constraints require a maximum frequency of 135 MHz.

Complex Programmable Logic Devices Part Context

This component belongs to the ispLSI 2128VE family, which offers 100% functional and pinout compatibility with the previous ispLSI 2128V series. It is designed to provide the ease of use of PLDs with the density of FPGAs, featuring enhanced pin locking and flexible global routing.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements include other variants within the ispLSI 2128VE family with different speed grades or package types. Verify pin compatibility when substituting with older ispLSI 2128V models.

Complex Programmable Logic Devices FAQ

What is the maximum operating frequency for the -100 speed grade?

The maximum operating frequency (fmax) for the ispLSI 2128VE-100 is 135 MHz.

Can the outputs be configured for wired-OR bus arbitration?

Yes, the outputs can be individually programmed as open-drain to support flexible bus interface capability and wired-OR logic.

How many dedicated clock inputs does the device have?

The device features three dedicated clock input pins (Y0, Y1, Y2) that connect to all GLBs.