M4A3-64/32-55VNC48

Complex Programmable Logic Devices Overview

The M4A3-64/32-55VNC48 is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at 3.3 V and features 64 macrocells with 32 user I/O options. The device utilizes E2CMOS technology to achieve a maximum propagation delay of 5.5 ns and a maximum count frequency of 167 MHz. It supports in-system programming via JTAG and includes architectural features such as SpeedLocking for guaranteed fixed timing and flexible switch matrices for 100% routability.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS architecture with 5.5 ns maximum propagation delay and 167 MHz maximum count frequency.
• Flexible logic design capabilities featuring central, input, and output switch matrices ensuring 100% pin-out retention.
• Supports 3.3-V and 5-V JEDEC-compliant operations with Hot-socketing safety for mixed-voltage systems.
• Includes JTAG (IEEE 1149.1) boundary scan testing and in-system programming capabilities.

Complex Programmable Logic Devices Applications

• System integration requiring mixed supply voltage environments.
• PCI compliant interface designs.
• Automated test equipment connectivity utilizing JTAG boundary scan.

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'VNC48' against official manufacturer documentation to confirm package type and temperature grade. Confirm availability status as the M4A3 series may have limited stock or end-of-life implications compared to newer families.

Complex Programmable Logic Devices Selection Notes

Select this component for designs requiring 64 macrocells with guaranteed fixed timing performance. Ensure the system operates within the 3.3 V supply range and requires JTAG-based configuration. Consider the TQFP-44 package constraints if space is limited.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4A family, which offers densities from 32 to 512 macrocells. The M4A3 variant specifically denotes 3.3 V operation, distinguishing it from the 5 V M4A5 series. The family emphasizes First-Time-Fit and refit features for rapid logic design implementation.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same density and speed grade should be sought from the M4A3-64 series. Verify package compatibility and electrical specifications before substitution.