LCMXO2-640UHC-5TG144I

Field Programmable Gate Array Overview

The LCMXO2-640UHC-5TG144I is a Field Programmable Gate Array (FPGA) from the MachXO2 series manufactured by Lattice Semiconductor. It features 320 Adaptive Logic Modules (ALMs), equivalent to 640 logic elements, and provides 107 user I/Os. The device operates within a supply voltage range of 2.375 V to 3.6 V and supports an industrial temperature range of -40°C to +100°C. It utilizes a TQFP-144 surface-mount package. Key specifications include 64 kbit of embedded block RAM (EBR), 5 kbit of distributed RAM, and a maximum operating frequency of 323 MHz at speed grade 5.

Field Programmable Gate Array Feature Summary

• Non-volatile flash-based architecture enabling instant-on configuration without external memory components.
• Integrated hardened IP controllers for I2C, SPI, and UART protocols to reduce logic resource usage.
• Supports multiple I/O voltage standards including 1.8V, 2.5V, and 3.3V with LVDS capability.

Field Programmable Gate Array Applications

• Industrial control systems for PLC signal processing and encoder interface management.
• Communication equipment involving serial protocol bridging and clock distribution.
• Consumer electronics requiring low-power logic expansion and sensor interfacing.

Field Programmable Gate Array Procurement Notes

Verify the specific speed grade suffix '5' and package type 'TQFP-144' against the required design constraints. Confirm that the industrial temperature rating (-40°C to +100°C) aligns with the operational environment. Ensure compatibility with the MachXO2 family programming tools and check for any recent packaging or marking changes documented in official product change notices.

Field Programmable Gate Array Selection Notes

Select this component when a non-volatile FPGA with moderate logic density (640 LEs) is required. It is suitable for applications needing instant power-up functionality and integrated serial interfaces. Compare against the LCMXO2-640UHC-4TG144I if a lower speed grade is sufficient for cost reduction. Consider higher capacity models like the LCMXO2-1200UHC if more logic resources are needed.

Field Programmable Gate Array Part Context

This part belongs to the Lattice MachXO2 family, which combines SRAM-based flexibility with non-volatile flash configuration. The MachXO2 series is designed for low-power, high-density applications, offering a balance between performance and energy efficiency. It serves as a drop-in replacement for many complex CPLD designs while providing greater programmability.

Field Programmable Gate Array Replacement Considerations

Publicly confirmed pin-to-pin compatible alternatives include the LCMXO2-640UHC-4TG144I, which offers identical physical dimensions and pinout but operates at a slower speed grade (4 vs 5). Verify timing requirements before substitution.

Field Programmable Gate Array FAQ

Does the LCMXO2-640UHC-5TG144I require an external configuration flash?

No, the MachXO2 series utilizes internal non-volatile flash technology, allowing the device to boot instantly from power-up without external configuration memory.

What is the maximum operating frequency for this specific speed grade?

For the speed grade 5 variant (LCMXO2-640UHC-5TG144I), the maximum operating frequency is specified as 323 MHz.

Is this component suitable for automotive applications?

Standard documentation does not list AEC-Q100 automotive qualification for this specific part number. It is rated for industrial temperature ranges (-40°C to +100°C).