ISPLSI 2032VE-135LT48

Complex Programmable Logic Devices Overview

The ispLSI 2032VE-135LT48 is a high-density, in-system programmable logic device (PLD) from Lattice Semiconductor. It features 1000 PLD gates, 32 macrocells, and 32 I/O pins within a 48-pin TQFP package. Operating on a 3.3V core with TTL-compatible inputs/outputs, it supports mixed-voltage systems up to 5V. The device offers a maximum operating frequency of 135 MHz and a typical propagation delay of 7.5 ns. It utilizes E2CMOS technology for non-volatile reprogrammability via IEEE 1149.1 JTAG boundary scan. Note: This specific part number is listed as discontinued under PCN #09-10.

Complex Programmable Logic Devices Feature Summary

• High Density Logic: 1000 PLD gates, 32 macrocells, and 8 Generic Logic Blocks (GLBs).
• In-System Programmability: Supports 3.3V ISP via Boundary Scan Test Access Port (TAP) using IEEE 1149.1.
• Mixed Voltage Support: Interfaces with standard 5V TTL devices despite 3.3V core operation.
• Flexible I/O Configuration: Individually programmable open-drain or totem-pole outputs with slew rate control.

Complex Programmable Logic Devices Applications

• Glue logic replacement in mixed-voltage digital systems.
• Address decoding and state machine implementation.
• Bus arbitration and wired-OR logic interfaces.
• Prototyping and field-reconfigurable logic designs.

Complex Programmable Logic Devices Procurement Notes

Verify current availability status as the ispLSI 2032VE family has been subject to discontinuation notices (PCN #09-10). Confirm lead times and end-of-life status with authorized distributors before design finalization. Ensure compliance with RoHS directives if required, noting that lead-free package options were available for this series.

Complex Programmable Logic Devices Selection Notes

Select the -135 speed grade for applications requiring up to 135 MHz operation with 7.5 ns propagation delay. Choose the LT48 package for surface-mount assembly in a 48-pin Thin Quad Flat Package. Consider the -300 speed grade for higher performance requirements, though it may require different packaging constraints. Verify power supply voltage compatibility (3.0V to 3.6V for VCC) and I/O voltage levels (up to 5.25V tolerance).

Complex Programmable Logic Devices Part Context

The ispLSI 2032VE belongs to the SuperFAST High Density PLD family, offering enhanced performance over previous ispLSI 2032V devices while maintaining pinout compatibility. It bridges the gap between traditional PLDs and FPGAs by providing FPGA-like density with PLD ease of use. The VE variant specifically targets low-voltage (3.3V) applications with robust 5V tolerance.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements are limited due to discontinuation. Consider the ispLSI 2032E series for upward compatibility in some contexts, or migrate to modern Lattice MachXO or CrossLink FPGA families for new designs. Verify pinout and timing compatibility when substituting with other CPLD families.