LC4064V-5TN44C

Complex Programmable Logic Devices Overview

The LC4064V-5TN44C is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000V family. It integrates 64 macrocells and supports up to 30 I/Os within a 44-pin TQFP package. The device operates at a maximum frequency of 400 MHz with a typical propagation delay of 5 ns. It utilizes a 1.8 V core voltage for low dynamic power consumption while supporting 5 V tolerant I/O standards including LVCMOS 3.3, LVTTL, and PCI interfaces. The component is designed for in-system programming via JTAG.

Complex Programmable Logic Devices Feature Summary

• High-performance logic with 400 MHz maximum operating frequency and 5 ns propagation delay
• Integrated 64 macrocells with individual clock, reset, preset, and enable controls
• Supports 5 V tolerant I/O for compatibility with LVCMOS 3.3, LVTTL, and PCI interfaces
• Enables In-System Programming (ISP) through standard JTAG interface

Complex Programmable Logic Devices Applications

• General-purpose digital logic replacement
• Bus bridging and protocol conversion
• Address decoding and control logic
• State machine implementation

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix against project timing requirements, as the '5' indicates a 5 ns delay characteristic. Confirm the 'C' suffix corresponds to the commercial temperature range (0°C to +70°C or 0°C to +90°C junction depending on datasheet revision). Ensure ESD precautions are observed during handling due to moisture sensitivity level 3 classification.

Complex Programmable Logic Devices Selection Notes

Select this model when 64 macrocells are sufficient for the design density. Compare against the LC4064V-25TN44C if a slower 25 ns speed grade is acceptable for lower power consumption. Verify that the 44-pin TQFP footprint matches the PCB layout constraints. Consider the LC4064V-5TN100I if additional I/O count is required without changing the logic capacity.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000V series, which combines features from the ispLSI 2000 and ispMACH 4A architectures. The family offers high density and SuperFAST performance with low power consumption. It is designed for applications requiring non-volatile configuration and robust pin-out retention across migration paths within the same family.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements include other speed grades within the LC4064V series such as LC4064V-25TN44C or LC4064V-75TN44I, provided pin compatibility and package type are verified. Cross-family migration to ispMACH 4000Z requires software recompilation but maintains architectural similarities.