ISPLSI2128-100LT

Overview

The ispLSI2128-100LT 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 pins and operates at a maximum frequency of 135 MHz with a propagation delay of 4 ns. It utilizes EEPROM technology for non-volatile configuration and functions within a 3.0 V to 3.6 V supply range. The component is housed in a TQFP-100 surface-mount package and is rated for industrial temperatures between -40°C and +105°C.

Feature Summary

• High-density architecture with 128 macrocells and 6000 system gates
• EEPROM-based non-volatile memory for instant-on operation
• Industrial temperature range (-40°C to +105°C)
• Maximum operating frequency of 135 MHz

Applications

• Memory controller implementations
• Bus bridging and protocol conversion
• System logic replacement
• Interface adaptation

Part Context

This component belongs to the ispLSI 2128VE series, representing high-density CPLDs designed for complex logic applications. The 'LT' suffix indicates the TQFP-100 package type, while the '-100' denotes the speed grade. This family is characterized by its use of Lattice's proprietary ISP (In-System Programming) technology.

Replacement Considerations

Verify pinout compatibility when substituting. Check if the application requires specific timing constraints met by the 135 MHz speed grade. Ensure the target system supports the 3.3V I/O levels inherent to this device.