LC5512MB-75F256I

Complex Programmable Logic Devices Overview

The LC5512MB-75F256I is an in-system programmable electronic programmable logic device (EE PLD) belonging to the ispXPLD 5000MX family. It features a 2.5V core voltage and operates with 2.5V I/O supplies. The device contains 768 macrocells organized into 24 Multi-Function Blocks (MFBs). Key electrical parameters include a maximum propagation delay of 4.5 ns, a register setup time of 2.8 ns, and a clock-to-output time of 3.0 ns. It supports a maximum operating frequency of 275 MHz and provides up to 384 Kbits of RAM and 144 Kbits of CAM capacity within its flexible architecture.

Complex Programmable Logic Devices Feature Summary

• Flexible Multi-Function Block (MFB) architecture supporting SuperWIDE logic, arithmetic functions, single/dual-port SRAM, FIFO, and ternary CAM modes.
• In-system programmability via IEEE 1532 interface for instant-on capability and infinite reconfigurability.
• Integrated sysCLOCK PLLs for timing control with multiply/divide ratios between 1 and 32 and clock shifting capabilities.
• Comprehensive sysIO interfaces including LVCMOS 2.5V, SSTL, HSTL, PCI, GTL+, LVDS, and LVTTL with programmable impedance.

Complex Programmable Logic Devices Applications

• High-speed data buffering and protocol conversion using FIFO mode.
• Address matching and packet filtering applications utilizing ternary CAM functionality.
• Arithmetic processing and signal processing tasks leveraging the dual-OR array carry chain.
• System integration in mixed-voltage environments requiring 2.5V core operation with 5V tolerant I/O.

Complex Programmable Logic Devices Procurement Notes

Verify component status against Product Change Notification #09-10. While some variants in the LC5512MC series are discontinued, the LC5512MB series remains active and orderable. Confirm that the specific suffix matches the required voltage and package specifications before procurement.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring 2.5V core voltage operation. The LC5512MB variant differs from the LC5512MV (3.3V core) and LC5512MC (1.8V core) primarily in supply voltage requirements. Ensure the design utilizes the 2.5V I/O bank configuration to match the device's native core voltage capabilities.

Complex Programmable Logic Devices Part Context

This component is part of the ispXPLD 5000MX family, which extends the SuperWIDE ispMACH 5000 architecture by adding flexible memory capabilities. The family includes devices with densities ranging from 256 to 1,024 macrocells. The LC5512MB specifically offers 768 macrocells, balancing logic density with memory resources for complex system-level applications.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other LC5512MB variants with different speed grades or packages, such as LC5512MB-45F256C or LC5512MB-75FN256C. Cross-family migration to ispMACH 4000 or ispMACH 5000 may require architectural adjustments due to differences in memory availability and I/O flexibility.