ISPLSI2128VL-135LT100

Overview

The ispLSI2128VL-135LT100 is a Complex Programmable Logic Device (CPLD) from the Lattice ispLSI 2128VE family. It features 128 macrocells, 6000 system gates, and 28 I/O pins housed in a TQFP-100 surface-mount package. The device operates at a maximum frequency of 135 MHz with a typical propagation delay of 4 ns. It utilizes EEPROM technology for non-volatile configuration and supports a supply voltage range of 3.0 V to 3.6 V. Designed for industrial temperatures (-40°C to +105°C), it offers high-density logic capabilities within a compact form factor.

Feature Summary

• High-performance operation up to 135 MHz with 4 ns propagation delay
• EEPROM-based non-volatile memory for instant-on functionality
• Industrial temperature range support (-40°C to +105°C)
• 128 Macrocells and 6000 system gates in TQFP-100 package

Applications

• DRAM controller design implementations
• High-density programmable logic interfacing
• Industrial control systems requiring robust logic resources

Procurement Notes

This component is identified as End-of-Life (EOL) by the manufacturer. Verification of current availability through authorized distributors or secondary market suppliers is required before procurement planning. Ensure compatibility with existing PCB footprints and programming tools when sourcing replacement units.

Selection Notes

Select this model for applications requiring moderate logic density (128 macrocells) with non-vatile storage. Compare against the ispLSI 2100 series for lower density needs or the ispLSI 2200 series for higher capacity. Verify that the 3.3V operating voltage aligns with the target system's power rails and that the TQFP-100 package fits the mechanical constraints.

Part Context

The ispLSI2128VL-135LT100 belongs to the ispLSI 2128VE family, which represents Lattice's high-density CPLD offerings utilizing fast EEPROM technology. This family bridges the gap between low-density PLDs and larger FPGAs, providing reprogrammability with the ease of use associated with EEPROM devices. It is part of the broader ispLSI product line designed for cost-effective logic integration.

Replacement Considerations

Direct pin-to-pin replacements may be limited due to the EOL status. Consider equivalent parts from the same ispLSI 2128 family with different speed grades or package options if available. Cross-reference with other manufacturers' CPLD families offering similar gate counts and I/O configurations for potential redesigns.