ISPLSI2128VL-150LT100

Overview

The ispLSI2128VL-150LT100 is a Complex Programmable Logic Device (CPLD) from the Lattice ispLSI 2128VE family. It features 128 macrocells, 6000 system gates, and 32 Logic Array Blocks (LABs). The device supports up to 28 I/O lines and operates at a maximum frequency of 150 MHz with a typical propagation delay of 4 ns. It utilizes an EEPROM storage type for non-volatile configuration and functions within a supply voltage range of 3.0 V to 3.6 V. The component is housed in a TQFP-100 surface-mount package and supports industrial temperature ranges.

Feature Summary

• High-density architecture with 128 macrocells and 6000 system gates distributed across 32 LABs.
• Fast performance capability with a maximum operating frequency of 150 MHz and 4 ns propagation delay.
• Non-volatile EEPROM technology allows for instant-on functionality without external configuration memory.
• Supports System In-Programmability (ISP) for flexible field updates via standard serial interfaces.

Applications

• High-speed interface bridging between legacy protocols and modern digital systems.
• Complex glue logic replacement in embedded controller designs.
• Address decoding and bus arbitration in industrial control systems.
• State machine implementation for automated test equipment.

Procurement Notes

Verify the specific suffix 'VL' against official Lattice documentation to confirm voltage and temperature ratings, as variations exist within the ispLSI 2128 series. Confirm availability status, as older CPLD families may be subject to discontinuation or limited stock. Ensure ESD precautions are taken during handling due to the sensitivity of CMOS input structures.

Selection Notes

Select this model when design requirements exceed the capacity of GAL devices but do not necessitate the complexity of high-end FPGAs. The 150 speed grade is suitable for applications requiring faster switching than the 135 MHz variant. Verify that the TQFP-100 package footprint matches the PCB layout constraints and that the 3.3V core voltage aligns with the target system power rails.

Part Context

This component belongs to the ispLSI 2000VE family, representing a generation of high-performance CPLDs designed to replace discrete logic and PAL/GAL devices. The ispLSI architecture combines the flexibility of programmable logic with the ease of use associated with complex logic families, serving as a bridge between simple PLDs and FPGA technologies.

Replacement Considerations

Direct pin-to-pin replacements within the same package and speed grade include the ispLSI2128VE-150LT100. For lower speed requirements, the ispLSI2128VE-135LT100 may serve as a compatible alternative if timing margins allow. Always verify electrical characteristics and pinout compatibility before substitution.