M4A5-64/32-12VNI

Complex Programmable Logic Devices Overview

The M4A5-64/32-12VNI is a Complex Programmable Logic Device (CPLD) from the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at 5 V and contains 64 macrocells with 32 user I/Os in a 44-pin PLCC package. The device features an E2CMOS process with EEPROM storage for non-volatile configuration. Key electrical parameters include a maximum propagation delay of 12 ns and a maximum operating frequency of 182 MHz. It supports JTAG boundary scan testing and in-system programming.

Complex Programmable Logic Devices Feature Summary

• 64 Macrocells with 32 User I/Os
• EEPROM-based non-volatile memory
• JTAG (IEEE 1149.1) compliant for boundary scan and in-system programming
• SpeedLocking technology for guaranteed fixed timing

Complex Programmable Logic Devices Applications

• PCI-compliant interface logic
• Mixed voltage system integration
• High-speed data routing and switching

Complex Programmable Logic Devices Procurement Notes

Verify the ordering suffix 'VNI' against official Lattice documentation to confirm specific package type and temperature grade. Confirm end-of-life status as some M4 series devices are discontinued. Ensure design tools support the ispMACH 4A architecture for programming.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring 64 macrocells with 5 V operation. Compare with M4A3-64/32 variants if 3.3 V supply is available. Consider the 44-pin PLCC package constraints. Verify that the 12 ns speed grade meets the system timing requirements.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4A CPLD family, which offers flexible architecture with central switch matrices. The family includes 3.3 V (M4A3) and 5 V (M4A5) variants with densities ranging from 32 to 512 macrocells. The M4A5-64/32 provides a balance of logic density and I/O count for mid-range applications.

Complex Programmable Logic Devices Replacement Considerations

Check for direct pin-compatible replacements within the M4A5-64/32 series with different speed grades or packages. Verify availability of newer Lattice CPLD families if the M4 series is obsolete.