M4A5-32/32-12VI

Complex Programmable Logic Devices Overview

The M4A5-32/32-12VI is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at 5V and contains 32 macrocells with 32 user I/Os in a 44-pin TQFP package. The device features EEPROM storage for non-volatile configuration and supports In-System Programming via JTAG. Key electrical parameters include a maximum propagation delay of 12 ns and a maximum operating frequency of 182 MHz under SpeedLocking conditions.

Complex Programmable Logic Devices Feature Summary

• ispMACH 4A architecture with 32 macrocells and 100% pin-out retention
• EEPROM-based non-volatile memory allowing reprogrammability
• JTAG (IEEE 1149.1) compliant boundary scan and in-system programming
• SpeedLocking technology ensures fixed timing regardless of logic complexity

Complex Programmable Logic Devices Applications

• General-purpose digital logic replacement
• Bus bridging and protocol conversion
• Address decoding and control logic
• State machine implementation

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and lead condition prior to installation. Check for moisture sensitivity labeling if the component has been stored for extended periods. Ensure design compatibility with 5V supply requirements and verify that the 12 ns speed grade meets system timing constraints.

Complex Programmable Logic Devices Selection Notes

Select this model when a 5V CPLD with 32 macrocells is required. The -12 suffix indicates a 12 ns speed grade. The 'I' suffix denotes an industrial temperature range. Compare against other M4A5 variants based on I/O count and package type. Ensure the design utilizes the central switch matrix effectively for optimal routing.

Complex Programmable Logic Devices Part Context

This part is part of the ispMACH 4A family, which succeeded the earlier ispMACH 4000 series. It offers enhanced flexibility with dedicated input registers and output switch matrices. The family supports both 3.3V and 5V operation, with the M4A5 series specifically designed for 5V systems. It provides a balance of performance and density for mid-range logic applications.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same family include M4A5-32/32-10VI (10 ns speed grade). Cross-family replacements from the ispMACH 4000V series may require schematic review due to architectural differences in macrocell structure and routing resources.