M4A3-384/160-12YI

Complex Programmable Logic Devices Overview

The M4A3-384/160-12YI is a 3.3-V ispMACH 4A Complex Programmable Logic Device (CPLD) featuring 384 macrocells and 160 user I/O options. It operates with a maximum propagation delay (tPD) of 7.5 ns and a maximum counter frequency (fCNT) of 125 MHz in the -12 speed grade. The device utilizes E2CMOS technology for high-performance, in-system programmability via JTAG. Key architectural features include a central switch matrix ensuring 100% routability, SpeedLocking for guaranteed fixed timing, and support for synchronous/asynchronous modes with dedicated input registers.

Complex Programmable Logic Devices Feature Summary

• 384 Macrocells with 160 User I/Os in a single package
• SpeedLocking technology guarantees fixed timing up to 7.5 ns tPD
• JTAG (IEEE 1149.1) compliant for boundary scan and in-system programming
• Central, input, and output switch matrices ensure 100% pin-out retention

Complex Programmable Logic Devices Applications

• PCI-compliant interface logic designs
• Mixed-voltage system integration requiring 3.3-V and 5-V compatibility
• High-speed data routing and switching applications
• Complex state machine implementations requiring dedicated clock pins

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'YI' against the manufacturer's current datasheet to confirm package type (likely TQFP or PQFP based on standard naming conventions for this density) and temperature range (Industrial). Ensure the component is lead-free if required by assembly specifications, as indicated by the datasheet header. Cross-reference the revision date (September 2006) for any potential obsolescence notices or updated documentation versions.

Complex Programmable Logic Devices Selection Notes

Select this model when 384 macrocells are required with a fixed 160-pin I/O count. The -12 speed grade provides a 7.5 ns tPD, suitable for moderate-high speed applications. Verify that the design fits within the 125 MHz fCNT limit. Consider the M4A3-384 variant over lower densities if pin-out retention across multiple design iterations is critical due to the flexible switch matrix architecture.

Complex Programmable Logic Devices Part Context

This part belongs to the Lattice ispMACH 4A family, which offers E2CMOS technology for non-volatile configuration. The M4A3 series specifically denotes 3.3-V operation. The 384-macrocell density sits between the 256 and 512 macrocell devices, offering a balance between resource availability and pin count. The architecture supports both commercial and industrial temperature ranges depending on the suffix.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other M4A3-384 variants with different speed grades (-5, -55, -6, -65, -7, -10) or package options. For higher density, consider the M4A3-512. For lower density with similar I/O counts, check the M4A3-256/192 if pin compatibility allows. Ensure voltage levels (3.3 V vs 5 V) match the target system.