M4A3-256/160-10YC

Complex Programmable Logic Devices Overview

The M4A3-256/160-10YC is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at a nominal voltage of 3.3 V and features 256 macrocells with 160 user I/O options. The device utilizes an E2CMOS process and supports in-system programming via JTAG. Key electrical parameters include a maximum propagation delay (tPD) of 10 ns and a maximum count frequency (fCNT) of 154 MHz. It is housed in a 100-pin PQFP package.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS architecture supporting 3.3-V operation
• SpeedLocking feature ensures guaranteed fixed timing up to 20 product terms per output
• Central switch matrix provides 100% routability and pin-out retention
• JTAG (IEEE 1149.1) compliant for boundary scan testing and in-system programming

Complex Programmable Logic Devices Applications

• PCI compliant logic interface designs
• Mixed supply voltage system integration
• High-speed data routing and protocol conversion
• Complex state machine implementation

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 availability status as older generation CPLDs may have limited stock or end-of-life implications. Ensure the design tool version supports the ispMACH 4A family for proper compilation and timing analysis.

Complex Programmable Logic Devices Selection Notes

Select this model when 256 macrocells and 160 I/Os are required within a 100-pin footprint. The -10 speed grade offers a 10 ns tPD suitable for moderate-speed applications. Compare against M4A3-256/192 variants if higher I/O counts are needed, noting the difference in package pinout and internal routing resources.

Complex Programmable Logic Devices Part Context

This component is part of the ispMACH 4A family, which bridges the gap between simple PLDs and larger FPGAs. The family includes both 3.3-V (M4A3) and 5-V (M4A5) devices. The M4A3-256/160 variant specifically targets designs requiring high I/O density with flexible macrocell-to-I/O mapping capabilities provided by the output switch matrix.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include M4A3-256/192-10YC for increased I/O capacity in compatible packages. Cross-family migration to newer Lattice architectures like MachXO or CrossLink requires significant design re-verification due to architectural differences.