ISPLSI2128VL-100LB208

Overview

The ispLSI2128VL-100LB208 is a Complex Programmable Logic Device (CPLD) from the Lattice ispLSI 2000VE family. It features 256 macrocells, 32 Logic Array Blocks (LABs), and 48 I/O pins within a 208-pin LBGA package. The device operates at a maximum frequency of 100 MHz with a typical propagation delay of 5 ns. It utilizes non-volatile EEPROM technology for configuration, supporting in-system programming via JTAG. Operating voltage ranges from 3.0 V to 3.6 V, with an industrial temperature range of -40°C to +85°C.

Feature Summary

• 256 Macrocells and 32 LABs for high-density logic implementation
• Non-volatile EEPROM memory allowing instant power-up operation
• In-System Programmability (ISP) via IEEE 1149.1 JTAG interface
• High-speed performance with 100 MHz max frequency and 5 ns delay

Applications

• High-speed interface bridging between legacy and modern systems
• Address/data bus buffering and protocol conversion
• Complex glue logic replacement in industrial control systems
• Finite State Machine (FSM) implementations requiring non-volatile storage

Procurement Notes

Verify the specific suffix 'LB208' confirms the 208-ball Low-profile Ball Grid Array package type. Confirm the 'VL' suffix indicates the Industrial temperature grade (-40°C to +85°C). Check current availability status as older CPLD families may have limited stock or obsolescence notices from the manufacturer.

Selection Notes

Select this component when non-volatile configuration is required to eliminate external PROMs. Compare against the ispLSI2128VE series if higher speed (135 MHz) is needed, noting that VE variants may differ in package availability and power consumption characteristics. Ensure the design fits within the 48 I/O constraint and 256 macrocell capacity.

Part Context

This part belongs to the Lattice ispLSI 2000VE family, designed for superfast, high-density applications. It succeeds earlier GAL-based designs by offering significantly higher density and reprogrammability. The family is characterized by its use of Electrically Erasable PROM (EEPROM) technology, distinguishing it from volatile SRAM-based FPGAs.

Replacement Considerations

Direct pin-to-pin replacements are limited due to proprietary architecture. Consider the ispLSI2128VE-100LB208 for speed upgrades if timing permits. For new designs, evaluate Lattice's MachXO2 or CrossLink-N families for modern FPGA capabilities, though architectural differences require schematic redesign.