M4A3-32/32-7JNI

Complex Programmable Logic Devices Overview

The M4A3-32/32-7JNI is a Complex Programmable Logic Device (CPLD) belonging to the ispMACH 4A family, manufactured by Lattice Semiconductor. It operates at a supply voltage of 3.3 V and features 32 macrocells with 32 user I/O options. The device provides a maximum propagation delay ($t_{PD}$) of 7.5 ns and a maximum operating frequency ($f_{CNT}$) of 182 MHz. It utilizes EEPROM technology for non-volatile storage and supports in-system programming via JTAG. The component is housed in a 44-pin TQFP package and is designed for commercial temperature ranges.

Complex Programmable Logic Devices Feature Summary

• High-performance E2CMOS architecture with guaranteed fixed timing via SpeedLocking feature
• Flexible logic architecture featuring central, input, and output switch matrices for 100% routability
• Supports synchronous and asynchronous modes with D/T registers and latches
• JTAG (IEEE 1149.1) compliant for boundary scan testing and in-system programming

Complex Programmable Logic Devices Applications

• General-purpose programmable logic replacement
• Bus bridging and protocol conversion
• Address decoding and control logic
• Interface adaptation between different voltage domains

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'JNI' against official Lattice documentation to confirm package type and temperature grade. Confirm end-of-life status or availability through authorized distributors, as older CPLD families may have limited stock. Ensure design files are compatible with current Lattice development tools.

Complex Programmable Logic Devices Selection Notes

Select this model when a 3.3 V supply is required with 32 macrocells and a 7.5 ns speed grade. Compare against the -5 speed grade if faster performance is needed, or the M4A5 series if 5 V operation is necessary. Verify that the 44-pin TQFP package fits the PCB footprint constraints.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4A family, which offers densities from 32 to 512 macrocells. The M4A3-32/32 variant specifically denotes the 3.3 V version with a 1:1 macrocell-to-I/O ratio. The family is known for its flexibility and ease of use in system integration tasks.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same family include the M4A3-32/32-5JNI (5.0 ns speed grade). For higher density needs, consider the M4A3-64/32 series. Cross-family migration to newer Lattice devices requires schematic and code re-verification.

Complex Programmable Logic Devices FAQ

What is the maximum operating frequency for the M4A3-32/32-7JNI?

The maximum operating frequency ($f_{CNT}$) is 182 MHz.

Does this device support in-system programming?

Yes, it supports in-system programming via the JTAG interface (IEEE 1149.1).

What is the package type for the M4A3-32/32-7JNI?

The standard package for this part number is a 44-pin Thin Quad Flat Pack (TQFP).