LC4128C-27T100C

Complex Programmable Logic Devices Overview

The LC4128C-27T100C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000C family. It features 128 macrocells organized into 8 Logic Array Blocks (LABs) and provides 64 I/O pins in a TQFP-100 package. The device operates at a supply voltage of 3.3V with a maximum propagation delay of 2.7 ns and a maximum operating frequency of 333 MHz. It supports in-system programming via IEEE 1149.1 JTAG and utilizes EEPROM technology for non-volatile configuration storage.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells across 8 LABs
• 64 I/O Pins
• 2.7 ns Maximum Propagation Delay
• 333 MHz Maximum Operating Frequency
• EEPROM Non-Volatile Memory

Complex Programmable Logic Devices Applications

• High-speed interface bridging
• Address/data bus multiplexing
• Protocol conversion logic

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as historical data may vary by production batch. Check for End-of-Life (EOL) notifications or Last-Time-Buy notices, as older CPLD families may have limited long-term availability.

Complex Programmable Logic Devices Selection Notes

Select this model when 128 macrocells are sufficient for the design logic requirements. Ensure the application requires 3.3V I/O levels compatible with the specified 3V to 3.6V supply range. Verify that the TQFP-100 surface-mount package fits the PCB footprint constraints compared to alternative pin counts like the TN128 or TN144 variants.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000C series, designed for high-density, low-power applications. It serves as a successor to earlier GAL devices, offering reprogrammability and higher performance than traditional PALs while maintaining ease of use for complex logic implementations.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same density include the LC4128V-27T100C (lower power variant) or the LC4128ZC-27T100C (1.8V core). For higher I/O counts, consider the LC4128V-27TN144C.