M4A3-512/160-7YC

Complex Programmable Logic Devices Overview

The M4A3-512/160-7YC is a 3.3-V ispMACH 4A Complex Programmable Logic Device (CPLD) from Lattice Semiconductor Corporation, featuring 512 macrocells and 160 user I/Os in a 256-pin fpBGA package. It operates within a supply voltage range of 3.0 V to 3.6 V and supports an industrial temperature range of -40°C to +85°C. The device delivers a maximum propagation delay ($t_{PD}$) of 7.5 ns and a maximum counter frequency ($f_{CNT}$) of 125 MHz. Key architectural features include a central switch matrix for 100% routability, SpeedLocking technology for guaranteed fixed timing, and JTAG-compliant in-system programming capabilities.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 512 macrocells and 160 user I/Os utilizing a 2:1 macrocell-to-I/O cell ratio.
• SpeedLocking feature ensures guaranteed fixed pin-to-pin timing delays independent of logic complexity.
• Supports mixed-voltage system designs with 3.3-V operation and 5-V tolerant inputs.
• Includes IEEE 1149.1 JTAG boundary scan compliance for automated testability and in-system programming.

Complex Programmable Logic Devices Applications

• System control and management logic requiring high pin counts.
• Bus bridging and protocol conversion in mixed-voltage environments.
• Complex state machine implementations with predictable timing constraints.

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix '7YC' against the manufacturer's current product selector guide to confirm package type and speed grade availability. Ensure that the ordering documentation explicitly lists this part number as active or obsolete, as lead times and stock levels are subject to change. Confirm RoHS compliance status if required by local regulations.

Complex Programmable Logic Devices Selection Notes

Select the M4A3-512/160-7YC when designs require 512 macrocells and a minimum of 160 I/O pins within a 256-pin footprint. The 7.5 ns speed grade is suitable for applications operating up to 125 MHz. Consider the 2:1 macrocell-to-I/O ratio architecture for flexible pinout retention during design refits compared to 1:1 ratio devices.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4A family, which offers E2CMOS technology for low power consumption and high performance. The family provides densities ranging from 32 to 512 macrocells across various packages including PLCC, PQFP, TQFP, BGA, fpBGA, and caBGA. The M4A3-512 variant represents the highest density option in the 3.3-V series.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other M4A3-512 variants with different speed grades (e.g., -5, -55, -6, -65, -10, -12) or package options. Verify pin compatibility and timing requirements before substituting with lower or higher speed grades.