ISPLSI 2032E-135LT48

Complex Programmable Logic Devices Overview

The ispLSI 2032E-135LT48 is a high-density, in-system programmable complex programmable logic device (CPLD) manufactured by Lattice Semiconductor. It utilizes E2CMOS technology to provide non-volatile reprogrammability with 10,000 erase/reprogram cycles. The device features 1000 PLD gates organized into eight Generic Logic Blocks (GLBs), each containing four macrocells. It offers 32 universal I/O pins and two dedicated inputs within a 48-pin TQFP package. Electrical specifications include a maximum operating frequency of 167 MHz and a typical propagation delay of 7.5 ns. The core operates at 5V, while the I/O supports user-selectable 3.3V or 5V levels.

Complex Programmable Logic Devices Feature Summary

• Contains 1000 PLD gates, 32 macrocells, and 32 universal I/O pins with two dedicated inputs.
• Supports in-system programming via IEEE 1149.1 JTAG interface for rapid prototyping.
• Features a Global Routing Pool (GRP) providing complete interconnectivity between GLBs and I/O cells.
• Offers programmable output slew rate control and open-drain output options to minimize switching noise.

Complex Programmable Logic Devices Applications

• Address decoding and bus bridging in embedded systems.
• State machine implementation and fast counter designs.
• Glue logic replacement in mixed-voltage digital circuits.
• Interface adaptation between TTL-compatible components.

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors as this part number may be subject to discontinuation notices. Confirm that the 48-pin TQFP package matches the design footprint requirements. Ensure the voltage configuration aligns with the specific speed grade (-135) and power supply constraints defined in the datasheet.

Complex Programmable Logic Devices Selection Notes

Select the -135 speed grade when a maximum toggle frequency of 167 MHz and a propagation delay of 7.5 ns are sufficient for the application timing requirements. This model is functionally compatible with the earlier ispLSI 2032 series but offers enhanced manufacturing yields and lower power consumption due to advanced E2CMOS technology.

Complex Programmable Logic Devices Part Context

This device belongs to the ispLSI 2000E family, which represents an evolution of the original ispLSI 2000 series. The 2032E variant specifically provides upward compatibility with the ispLSI 2032 JEDEC files while introducing improved performance metrics and additional features such as flexible pin placement and enhanced clocking capabilities.

Complex Programmable Logic Devices Replacement Considerations

The ispLSI 2032E-225LT48 serves as a higher-performance alternative within the same package and functional family. Designers requiring faster switching speeds should consider the -225 grade, which offers a maximum frequency of 250 MHz and a reduced propagation delay of 3.5 ns.