M4A5-256/128-10YI

Complex Programmable Logic Devices Overview

The M4A5-256/128-10YI is a 5-V ispMACH 4A CPLD featuring 256 macrocells and 128 user I/Os. It operates within a -40°C to +85°C industrial temperature range with a maximum propagation delay of 10 ns and a maximum count frequency of 154 MHz. The device utilizes E²CMOS technology for in-system programming via JTAG (IEEE 1149.1). It supports mixed-voltage system designs, ensuring safe operation between 3.3-V and 5-V domains. Key architectural features include a central switch matrix for 100% routability, SpeedLocking for guaranteed fixed timing, and programmable output slew rates.

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells with 128 User I/Os in a single package
• Industrial grade performance: 10 ns max tPD and 154 MHz fCNT
• JTAG-compliant boundary scan and in-system programming
• SpeedLocking architecture ensures fixed pin-to-pin delays

Complex Programmable Logic Devices Applications

• High-speed interface bridging in industrial control systems
• Complex glue logic for mixed-voltage digital designs
• State machine implementation requiring deterministic timing

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'YI' against the manufacturer's current datasheet to confirm package type and lead-free status. Confirm that the 10 ns speed grade aligns with the required system timing constraints. Ensure the design environment supports the ispMACH 4A family tools for compilation and programming.

Complex Programmable Logic Devices Selection Notes

Select this part when 256 macrocells are required with high I/O density. The 10 ns speed grade offers a balance between performance and power consumption for industrial applications. Consider the 1:1 macrocell-to-I/O ratio which simplifies routing compared to 2:1 ratio devices. Verify voltage compatibility if interfacing with 3.3-V components.

Complex Programmable Logic Devices Part Context

This component belongs to the Lattice ispMACH 4A family, designed for high-performance E²CMOS applications. The family ranges from 32 to 512 macrocells, offering flexible architecture with central switch matrices. The M4A5 variant specifically targets 5-V operation environments while maintaining compatibility with lower voltage standards through built-in safety features.

Complex Programmable Logic Devices Replacement Considerations

Check for updated speed grades or package options within the same M4A5-256 series. Verify if the M4A3-256 series is suitable if 3.3-V operation is preferred, noting the voltage difference.