M4A5-128/64-55YC

Complex Programmable Logic Devices Overview

The M4A5-128/64-55YC is a Complex Programmable Logic Device (CPLD) from the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at 5V and contains 128 macrocells with 64 user I/O options. The device features a high-performance E2CMOS process, offering a maximum propagation delay (tPD) of 5.5 ns and a maximum count frequency (fCNT) of 167 MHz. It supports in-system programming via JTAG (IEEE 1149.1) and includes SpeedLocking technology for guaranteed fixed timing performance.

Complex Programmable Logic Devices Feature Summary

• High-speed operation with 5.5 ns tPD and 167 MHz fCNT
• 128 Macrocells and 64 User I/Os
• JTAG-compliant boundary scan testing and in-system programming
• SpeedLocking feature ensures consistent pin-to-pin delays

Complex Programmable Logic Devices Applications

• PCI compliant logic designs
• Mixed supply voltage system integration
• Automated test equipment connectivity

Complex Programmable Logic Devices Procurement Notes

Verify that the ordering suffix 'Y' corresponds to the specific package type required for the design, as package options vary within the ispMACH 4A family. Confirm lead-free status if environmental compliance is mandatory for the application.

Complex Programmable Logic Devices Selection Notes

Select this model for applications requiring 5V operation with moderate density logic. Ensure the design utilizes up to 20 product terms per output to leverage the SpeedLocking feature for guaranteed timing. Verify that the available I/O pins match the interface requirements.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4A CPLD family, which offers densities ranging from 32 to 512 macrocells. The M4A5 series specifically denotes 5V devices, contrasting with the M4A3 series designed for 3.3V operation. The family emphasizes flexibility through switch matrices and first-time-fit capabilities.

Complex Programmable Logic Devices Replacement Considerations

Compatible replacements within the same family include other speed grades of the M4A5-128/64 series, such as M4A5-128/64-5VC or M4A5-128/64-7VNC, provided the package and voltage specifications align.