M4A3-256/192-7FAC

Complex Programmable Logic Devices Overview

The M4A3-256/192-7FAC is a high-performance Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4A family. It features 256 macrocells and supports up to 192 user I/Os within a 256-ball fine-pitch Ball Grid Array (fpBGA) package. Operating at a nominal 3.3 V supply, this device achieves a maximum propagation delay of 7.5 ns and a maximum count frequency of 167 MHz. The architecture utilizes E2CMOS technology for in-system programming via JTAG, ensuring 100% pin-out retention and predictable timing through SpeedLocking capabilities.

Complex Programmable Logic Devices Feature Summary

• High-density logic with 256 macrocells and up to 192 I/Os in an fpBGA-256 package
• Guaranteed fixed timing performance with a maximum propagation delay of 7.5 ns
• Supports 3.3 V operation with 5 V tolerant inputs for mixed-voltage system integration
• Features IEEE 1149.1 compliant JTAG boundary scan and in-system programmability

Complex Programmable Logic Devices Applications

• High-speed interface bridging and protocol conversion
• Complex glue logic replacement in digital systems
• State machine implementation requiring deterministic timing
• System control and management in mixed-voltage environments

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature range. Confirm end-of-life status or availability constraints prior to finalizing design-in decisions. Ensure that the selected variant matches the required voltage levels and I/O configurations for the target application.

Complex Programmable Logic Devices Selection Notes

Select this component when designs require high I/O counts with guaranteed timing predictability. The 7.5 ns speed grade offers a balance between performance and power consumption for commercial applications. Consider the 1:1 macrocell-to-I/O ratio architecture for efficient resource utilization in large-scale logic implementations.

Complex Programmable Logic Devices Part Context

This device belongs to the ispMACH 4A family, which provides flexible PAL block architectures interconnected by a central switch matrix. The family supports densities from 32 to 512 macrocells, offering designers scalability across various application requirements while maintaining consistent software tools and architectural benefits.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other M4A3-256 variants with different speed grades or package options. Verify compatibility regarding pinout retention and electrical characteristics when substituting with other devices in the ispMACH 4A series.