LC4064C-5TN44C

Complex Programmable Logic Devices Overview

The LC4064C-5TN44C is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4000 family, manufactured by Lattice Semiconductor Corporation. It features 64 macrocells and supports up to 30 I/O pins within a 44-TQFP package. The device operates with an internal supply voltage of 3V to 3.6V and delivers a maximum propagation delay of 2.5 ns. Designed for low power consumption, it utilizes a 1.8V core while maintaining 5V tolerant I/O capabilities. The component supports In-System Programming via JTAG and functions reliably across a junction temperature range of 0°C to 90°C.

Complex Programmable Logic Devices Feature Summary

• High-performance SuperFAST architecture with a maximum operating frequency of 400 MHz and 2.5 ns propagation delay.
• Low power design featuring a 1.8V core voltage and typical standby current of approximately 11.5 µA.
• 5V tolerant I/Os compatible with LVCMOS 3.3, LVTTL, and PCI interface standards.
• In-System Programmability (ISP) enabled through JTAG interface for flexible system updates.

Complex Programmable Logic Devices Applications

• Control logic in data center switches and server platforms.
• Interface bridging between processors and displays or sensors.
• Glue logic and sequencing in multi-port card systems.
• General-purpose digital logic implementation requiring low power and high density.

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to 90°C TJ). Confirm the package type matches the required PCB footprint, as the TN44 designation corresponds to a 44-pin Thin Quad Flat Package. Ensure compatibility with existing JTAG programming infrastructure for In-System Programming requirements.

Complex Programmable Logic Devices Selection Notes

Select this model when 64 macrocells are sufficient for the design complexity. The 2.5 ns speed grade is suitable for applications requiring up to 400 MHz operation. Choose this part over higher-density variants if pin count and logic resources align with the 30 I/O limit. Verify that the 3.3V/2.5V/1.8V I/O voltage levels match the target system interfaces.

Complex Programmable Logic Devices Part Context

This component is part of the ispMACH 4000 family, which blends ispLSI 2000 and ispMACH 4A architectures. It serves as a successor to legacy PLDs, offering improved timing predictability and routing efficiency through Global Routing Pool technology. The family provides migration paths from lower-density devices like the LC4032 to higher-density options such as the LC4128.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same package include other speed grades of the LC4064 series, such as the LC4064V-25TN44C or LC4064Z-25TN44C, provided power and temperature specifications meet the application needs. Cross-family migration to ispMACH 4000V or Z variants requires verification of I/O standards and power constraints.