LAMXO640C-3TN100E

Overview

The LAMXO640C-3TN100E is an automotive-grade Field Programmable Gate Array (FPGA) from the LA-MachXO family, qualified to AEC-Q100 standards. It features 640 Look-Up Tables (LUTs), 6.0 Kbits of distributed RAM, and supports up to 74 I/Os in a 100-pin TQFP package. Operating voltages range from 1.2V to 3.3V, with a maximum frequency of 500 MHz. The device offers non-volatile, infinitely reconfigurable logic with instant-on capabilities and TransFR technology for in-system updates.

Feature Summary

• AEC-Q100 Qualified: Designed for automotive applications with extended temperature ranges (-40°C to +125°C).
• Non-Volatile Architecture: Provides instant-on functionality without external configuration memory.
• TransFR Technology: Enables background programming and in-field logic updates while the system operates.
• Flexible I/O Support: Includes sysIO buffers supporting LVCMOS, LVTTL, PCI, LVDS, and other standards.

Applications

• Glue logic replacement in automotive control systems.
• Bus bridging and interfacing between different protocol domains.
• Power-up control and sequencing management.
• General-purpose control logic requiring high reliability.

Procurement Notes

Verify the specific suffix 'E' indicates the automotive grade qualification as per the LA-MachXO Automotive Family Data Sheet. Confirm package availability and lead times directly with authorized distributors, as stock levels fluctuate. Ensure design tools support the specific device variant for accurate timing analysis.

Selection Notes

Select this part for designs requiring AEC-Q100 compliance and non-vatile FPGA features. Compare against LAMXO256C for lower density needs or LAMXO1200E if embedded block RAM or PLLs are required. Verify that the 100-pin TQFP package meets PCB space constraints and thermal requirements for the target application environment.

Part Context

This component belongs to the LA-MachXO automotive family, which combines CPLD-like instant-on capabilities with FPGA flexibility. It is distinct from the standard MachXO series by its rigorous automotive qualification. The 'C' in the model name typically denotes commercial temperature range variants within the broader family, but the 'E' suffix and datasheet context confirm its automotive specification.

Replacement Considerations

Direct pin-to-pin replacements within the same package include other LA-MachXO devices like LAMXO256C-3TN100E (lower density) or LAMXO1200E (higher density, different pinout/features). Cross-family replacements require careful review of logic capacity and I/O compatibility.

FAQ

Does the LAMXO640C-3TN100E require external configuration memory?

No, it uses non-volatile technology for single-chip, instant-on operation without external configuration memory.

What is the maximum operating frequency?

The device supports a maximum operating frequency of 500 MHz.

Can the logic be updated while the system is running?

Yes, it supports TransFR™ technology for in-field logic updates while the system operates.