M4A3-32/32-7JI

Complex Programmable Logic Devices Overview

The M4A3-32/32-7JI is a 3.3-V Complex Programmable Logic Device (CPLD) from the ispMACH 4A family, manufactured by Lattice Semiconductor. It features 32 macrocells and 32 user I/O pins housed in a PLCC-44 package. The device operates within a commercial temperature range of 0°C to +70°C and supports JTAG (IEEE 1149.1) for in-system programming and boundary scan testing. Key electrical specifications include a maximum propagation delay ($t_{PD}$) of 7.5 ns and a maximum operating frequency ($f_{CNT}$) of 182 MHz.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS architecture with guaranteed fixed timing via SpeedLocking feature
• Flexible logic architecture with central switch matrix ensuring 100% routability and pin-out retention
• Supports synchronous and asynchronous modes with D/T registers, latches, and programmable polarity
• JTAG compliant for in-system programming and boundary scan testing

Complex Programmable Logic Devices Applications

• General-purpose digital logic implementation
• System integration requiring mixed-voltage compatibility
• Boundary scan testing environments

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix '7JI' corresponds to the 7.5 ns speed grade, industrial/commercial temperature rating, and PLCC-44 package as documented in the official datasheet. Ensure compliance with RoHS directives if lead-free packaging is required.

Complex Programmable Logic Devices Selection Notes

Select this model when a 3.3-V supply is required with 32 macrocells and 32 I/Os. The 7.5 ns speed grade offers a balance between performance and power consumption compared to faster grades like -5 or -55. Verify that the PLCC-44 package fits the PCB footprint constraints and that the design utilizes the JTAG interface for configuration.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4A family, which provides high-density CPLD solutions ranging from 32 to 512 macrocells. The M4A3 series specifically targets 3.3-V applications, offering compatibility with JEDEC standards and support for mixed-voltage system designs. The family emphasizes ease of use with First-Time-Fit capabilities and predictable timing characteristics.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other speed grades of the M4A3-32/32 such as M4A3-32/32-5JI or M4A3-32/32-55JI, provided timing requirements are met. Cross-family replacements may require architectural verification due to differences in macrocell-I/O ratios and switch matrix configurations.