M4A5-64/32-55VNC48

Complex Programmable Logic Devices Overview

The M4A5-64/32-55VNC48 is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4A family. It features 64 macrocells and 32 user I/Os, operating at a maximum frequency of 167 MHz with a typical propagation delay of 5.5 ns. The device supports 5-V operation within a 4.75 V to 5.25 V range and utilizes EEPROM storage for non-volatile configuration. Designed for commercial applications between 0°C and +70°C, it integrates JTAG boundary scan compliance and in-system programming capabilities via the IEEE 1149.1 interface.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS architecture with 5.5 ns maximum propagation delay and 167 MHz count frequency.
• Flexible logic design with 64 macrocells, 32 I/Os, and 100% pin-out retention across design changes.
• Supports In-System Programming (ISP) and JTAG boundary scan testing compliant with IEEE 1149.1.
• Features SpeedLocking technology to guarantee fixed timing regardless of product term allocation.

Complex Programmable Logic Devices Applications

• PCI-compliant system integration and bus interfacing
• Mixed supply voltage designs requiring 5-V I/O safety
• Automated test equipment connectivity via boundary scan

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and check for moisture sensitivity handling requirements prior to assembly. Ensure the specific ordering suffix matches the required temperature grade and package type.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring 64 macrocells with 5-V logic levels. The -55 speed grade provides a 5.5 ns delay suitable for moderate-speed applications. Consider the TQFP-48 package dimensions and verify that the 32 I/O count meets the interface requirements of the target system.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4A CPLD family, which offers densities ranging from 32 to 512 macrocells. The M4A5 series specifically targets 5-V applications, providing compatibility with legacy systems while supporting modern in-system programming standards.

Complex Programmable Logic Devices Replacement Considerations

Check for updated Lattice part numbers within the same ispMACH 4A family that may offer lead-free packaging options or revised speed grades. Verify pinout compatibility if substituting with other 44-pin packages such as PLCC-44 or PQFP-44 variants.