M4A5-128/64-55VC

Complex Programmable Logic Devices Overview

The M4A5-128/64-55VC is a 5-V ispMACH 4A CPLD featuring 128 macrocells and 64 user I/Os. It operates with a guaranteed propagation delay (tPD) of 5.5 ns and a maximum counter frequency (fCNT) of 167 MHz. The device utilizes E2CMOS technology, supports JTAG boundary scan testing, and offers flexible architecture with dedicated input registers and synchronous/asynchronous modes.

Complex Programmable Logic Devices Feature Summary

• High-performance 5.5 ns tPD and 167 MHz fCNT
• 128 Macrocells with 64 User I/O options
• JTAG (IEEE 1149.1) compliant for in-system programming and boundary scan
• PCI compliant design for mixed-voltage system safety

Complex Programmable Logic Devices Applications

• Industrial control systems requiring high-speed logic
• Communication board interface bridging
• PCI-compliant peripheral logic implementation

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'VC' against official Lattice Semiconductor documentation to confirm package type and temperature grade. Ensure compatibility with existing 3.3-V and 5-V mixed supply voltage designs as supported by the family features.

Complex Programmable Logic Devices Selection Notes

Select this model for applications needing 128 macrocells with a 5.5 ns speed grade. The 5-V operation is suitable for legacy interfaces. Consider the 1:1 macrocell-to-I/O ratio for direct pin mapping requirements compared to 2:1 variants.

Complex Programmable Logic Devices Part Context

Part of the ispMACH 4A family, offering E2CMOS programmable logic. The M4A5 series specifically targets 5-V applications, providing flexibility through central switch matrices and output switch matrices for 100% routability.

Complex Programmable Logic Devices Replacement Considerations

Check for updated lead-free package options if environmental compliance is required. Verify pinout retention when migrating from older ispMACH devices or other CPLD families.