M4A3-32/32-7VNI48

Complex Programmable Logic Devices Overview

The M4A3-32/32-7VNI48 is a member of the ispMACH 4A family, a high-performance E2CMOS Complex Programmable Logic Device (CPLD). It operates at 3.3 V and features 32 macrocells with a 1:1 macrocell-to-I/O cell ratio. The device provides 32 user I/Os and supports a maximum propagation delay (tPD) of 7 ns and a maximum count frequency (fCNT) of 182 MHz. It utilizes EEPROM technology for non-volatile configuration and includes JTAG boundary scan compliance for in-system programming and testing.

Complex Programmable Logic Devices Feature Summary

• High-speed performance with guaranteed fixed timing via SpeedLocking feature
• Flexible architecture with 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 and in-system programming

Complex Programmable Logic Devices Applications

• General-purpose logic replacement
• Interface bridging between different voltage domains
• State machine implementation
• Address decoding and control logic

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix 'VNI48' against official Lattice Semiconductor documentation to confirm package type and temperature grade. Ensure design tools support the ispMACH 4A family for compilation and programming. Check for lead-free package availability if required by environmental regulations.

Complex Programmable Logic Devices Selection Notes

Select this device for designs requiring up to 32 macrocells with predictable timing characteristics. The 3.3-V operation makes it suitable for mixed-voltage systems where 5-V inputs are tolerated. Consider the 1:1 macrocell-to-I/O ratio for simpler routing requirements compared to 2:1 ratio devices.

Complex Programmable Logic Devices Part Context

This component belongs to the ispMACH 4A family, which offers densities from 32 to 512 macrocells. The M4A3 series specifically denotes 3.3-V operation. The '-7' speed grade indicates a 7 ns maximum propagation delay. The family is known for its flexibility and ease of use with Lattice's development software.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements within the same family include other M4A3-32 variants with different speed grades or packages. Cross-family migration may require architectural adjustments due to differences in macrocell structure and I/O capabilities.

Complex Programmable Logic Devices FAQ

What is the macrocell-to-I/O cell ratio for the M4A3-32/32?

The M4A3-32/32 has a 1:1 macrocell-to-I/O cell ratio, meaning each macrocell can drive one of eight I/O cells within its PAL block.

Does the M4A3-32/32 support in-system programming?

Yes, it supports 3.3-V in-system programming via the JTAG interface compliant with IEEE Std. 1149.1.

What is the maximum operating frequency for this device?

The maximum count frequency (fCNT) is 182 MHz, achievable with the SpeedLocking feature when using up to 20 product terms per output.