ISPLSI 2032VE-180LT44

Complex Programmable Logic Devices Overview

The ispLSI 2032VE-180LT44 is a discontinued high-density programmable logic device from Lattice Semiconductor. It features 1000 PLD gates, 32 I/O pins, and 32 registers within a single Megablock architecture. Built on E²CMOS technology, it operates at a maximum frequency of 180 MHz with a propagation delay of 5.0 ns. The device supports in-system programming via IEEE 1149.1 JTAG and functions in both 3.3V and 5V systems. It includes three dedicated clock inputs, open-drain output options, and programmable slew rate control for noise reduction.

Complex Programmable Logic Devices Feature Summary

• High Density Logic: Contains 1000 PLD gates, 32 macrocells, and a Global Routing Pool (GRP) for complete interconnectivity.
• High Performance: Achieves fmax = 180 MHz and tpd = 5.0 ns using advanced E²CMOS technology.
• In-System Programmability: Supports non-volatile reprogramming via Boundary Scan Test Access Port (TAP) compliant with IEEE 1149.1.
• Flexible I/O: Features TTL-compatible inputs/outputs, individually programmable open-drain outputs, and selectable fast/slow slew rates.

Complex Programmable Logic Devices Applications

• Complex glue logic replacement in mixed-voltage systems
• Fast counters and state machines utilizing wide input gating
• Address decoders and bus arbitration logic with open-drain capabilities
• Prototyping and field-reconfigurable digital designs

Complex Programmable Logic Devices Procurement Notes

This specific part number is officially discontinued as per Product Change Notification #09-10. Verification of current product status is required before procurement. Alternative orderable devices within the same family, such as the ispLSI 2032VE-180LTN44 or higher-speed variants like the -225 or -300 series, should be consulted for new designs.

Complex Programmable Logic Devices Selection Notes

Select this component for applications requiring 32 I/Os and 1000 PLD gates in a 44-pin TQFP package. Ensure design timing constraints align with the 5.0 ns propagation delay and 180 MHz maximum frequency. Verify voltage compatibility, as the device interfaces with standard 5V TTL devices despite its 3.3V core architecture.

Complex Programmable Logic Devices Part Context

The ispLSI 2032VE belongs to the SuperFAST™ High Density PLD family. It is functionally and pinout compatible with the earlier ispLSI 2032V devices but offers enhanced performance through E²CMOS technology. The 'LT44' suffix denotes the commercial grade temperature range and the 44-pin Thin Quad Flat Package (TQFP) housing.

Complex Programmable Logic Devices Replacement Considerations

Public confirmed substitute part numbers include ispLSI 2032VE-180LTN44 (lead-free version), ispLSI 2032VE-225LT44, and ispLSI 2032VE-300LT44. These alternatives maintain functional compatibility while offering lead-free packaging or improved speed specifications.

Complex Programmable Logic Devices FAQ

What is the maximum operating frequency for the ispLSI 2032VE-180LT44?

The maximum operating frequency (fmax) is 180 MHz, with a corresponding propagation delay (tpd) of 5.0 ns.

How many logic blocks and registers does the device contain?

The device contains eight Generic Logic Blocks (GLBs) labeled A0 through A7, totaling 32 macrocells/registers.

Can the outputs be configured for wired-OR logic?

Yes, the outputs are individually programmable as either standard totem-pole or open-drain configurations, allowing for wired-OR or bus arbitration implementations.