M5LV-256/74-7VC

Complex Programmable Logic Devices Overview

The M5LV-256/74-7VC is a 3.3-V Complex Programmable Logic Device (CPLD) from the Lattice MACH 5 family, featuring 256 macrocells and 74 user I/O pins in a 100-pin TQFP package. It operates within a supply voltage range of 3.0 V to 3.6 V with an industrial temperature rating of -40°C to +85°C. The device delivers a maximum propagation delay (tpd) of 7.5 ns and supports a maximum count frequency (fcnt) of 182 MHz. Key architectural features include IEEE 1149.1 boundary scan compliance, in-system programmability via JTAG, and support for mixed-voltage system designs.

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells with 74 User I/Os in a 100-pin TQFP Package
• 7.5 ns Maximum Propagation Delay at Industrial Temperature Range (-40°C to +85°C)
• IEEE 1149.1 Compliant In-System Programming and Boundary Scan Testing
• Support for Mixed-Supply Voltage Designs with 5-V Input Tolerance

Complex Programmable Logic Devices Applications

• High-speed computing logic integration
• Embedded control systems
• Communications interface bridging
• PCI Local Bus compliant designs

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required speed grade and package variant. Check for RoHS compliance status as older manufacturing runs may not meet current environmental regulations. Ensure design tools are compatible with the MACH 5 architecture for successful programming.

Complex Programmable Logic Devices Selection Notes

Select this model when 256 macrocells and 74 I/Os fit the design requirements within a 100-pin footprint. The 7.5 ns speed grade is suitable for industrial applications requiring predictable timing. Consider the M5LV-256/104-7VI if more I/O pins are needed in a 144-pin package. Verify power consumption levels against the four available power/speed settings per PAL block.

Complex Programmable Logic Devices Part Context

This component belongs to the fifth-generation MACH CPLD family, designed for high-density logic integration. The M5LV designation indicates a 3.3-V core voltage, while the '7' denotes the 7.5 ns speed grade. The 'VC' suffix specifies the commercial temperature range and 100-pin TQFP packaging configuration.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same density and I/O count should be verified against the official Lattice product selector guide. Cross-family migration requires re-evaluation of timing constraints and I/O standards.