LC5256MV-5F256I

Complex Programmable Logic Devices Overview

The LC5256MV-5F256I is a Complex Programmable Logic Device (CPLD) belonging to the ispXPLD 5000MX family manufactured by Lattice Semiconductor. It features 256 macrocells and operates with a maximum propagation delay of 4.0 ns, supporting frequencies up to 300 MHz. The device utilizes a 3.3V core supply voltage and supports 5V tolerant I/O interfaces. It is housed in a 256-pin fine-pitch Ball Grid Array (fpBGA) package. Key architectural components include Multi-Function Blocks (MFBs), sysCLOCK PLLs for timing control, and support for In-System Programmability via IEEE 1532.

Complex Programmable Logic Devices Feature Summary

• Flexible Multi-Function Block (MFB) architecture supporting SuperWIDE logic, arithmetic functions, and memory configurations including SRAM, FIFO, and Ternary CAM.
• High-speed performance with 4.0 ns pin-to-pin delay and 300 MHz maximum operating frequency.
• Integrated sysCLOCK PLLs providing multiply/divide capabilities between 1 and 32 with clock shifting and external feedback.
• Comprehensive sysIO interfaces supporting LVCMOS 1.8/2.5/3.3V, SSTL, HSTL, PCI, GTL+, LVDS, LVPECL, and LVTTL standards.

Complex Programmable Logic Devices Applications

• Complex digital logic implementation requiring deterministic timing and low power consumption.
• System integration involving mixed-voltage designs with 3.3V, 2.5V, and 1.8V requirements.
• Applications utilizing embedded memory structures such as FIFO buffers or dual-port SRAM within programmable logic.
• Prototyping and production designs requiring in-system reconfigurability via IEEE 1532.

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix corresponds to the required temperature grade and package variant. Ensure compliance with relevant environmental regulations such as RoHS standards prior to procurement. Check for any product change notifications affecting availability or specifications.

Complex Programmable Logic Devices Selection Notes

Select this model when 256 macrocells are sufficient for the design complexity. Consider the fpBGA256 package constraints regarding board space and thermal management. Evaluate if the 3.3V core voltage aligns with system power requirements. Verify that the available I/O banks support the necessary interface standards like LVDS or LVCMOS for the target application.

Complex Programmable Logic Devices Part Context

This part belongs to the ispXPLD 5000MX family, which extends the SuperWIDE ispMACH 5000 architecture by adding flexible memory capabilities. The MV suffix indicates the 3.3V core voltage version of the device. The family is designed for applications needing instant-on capability, design security, and extreme reconfigurability while maintaining low static and dynamic power consumption.

Complex Programmable Logic Devices Replacement Considerations

Check for discontinued status notifications from Lattice Semiconductor. Potential replacements within the same family may include other density variants like LC5512MV or LC5768MV if higher resource counts are needed, provided pin compatibility or redesign efforts are acceptable. Verify functional equivalence regarding I/O counts and memory resources.