M4A3-256/128-10YI

Complex Programmable Logic Devices Overview

The M4A3-256/128-10YI is a member of the Lattice ispMACH 4A family, an E²CMOS Complex Programmable Logic Device (CPLD). It features 256 macrocells and supports up to 128 user I/Os. The device operates at 3.3V with a guaranteed propagation delay (tPD) of 10ns and a maximum counter frequency (fCNT) of 167 MHz. It utilizes a flexible architecture with central switch matrices for 100% routability and pin-out retention. Key capabilities include in-system programming via JTAG, PCI compliance, and SpeedLocking technology for fixed timing performance.

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells with up to 128 User I/Os
• 10ns Propagation Delay (tPD) and 167 MHz Counter Frequency (fCNT)
• In-System Programmable via JTAG (IEEE 1149.1)
• PCI Compliant (-10 speed grade)

Complex Programmable Logic Devices Applications

• PCI Bus Interface Logic
• Mixed-Voltage System Integration
• High-Speed Control Logic

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'YI' against official Lattice documentation to confirm package type and temperature range. Confirm RoHS compliance status as datasheet indicates lead-free options are available but not universal for all suffixes.

Complex Programmable Logic Devices Selection Notes

Select this device for designs requiring 256 macrocells with high-speed 10ns performance. Ensure the design fits within the 128 I/O limit and utilizes the 3.3V supply domain. Verify that the required package matches the 'YI' suffix specifications.

Complex Programmable Logic Devices Part Context

Part of the ispMACH 4A family, which offers densities from 32 to 512 macrocells. The M4A3 variant specifically targets 3.3V applications, contrasting with the 5V M4A5 series. It shares architectural features like SpeedLocking and JTAG ISP with the broader family.

Complex Programmable Logic Devices Replacement Considerations

Check for M4A3-256 variants with different speed grades (e.g., -7, -12) or I/O counts if pinout compatibility allows. Consider M4A5-256 for 5V applications if voltage levels differ.