LAMXO256E-3TN100E

Overview

The LAMXO256E-3TN100E is an automotive-grade Field Programmable Gate Array (FPGA) from the LA-MachXO family, qualified to AEC-Q100 standards. It features 256 Look-Up Tables (LUTs), 78 user I/Os, and 2.0 Kbits of distributed RAM within a 100-pin Lead-Free TQFP package. The device operates on core voltages of 1.2V, 1.8V, 2.5V, or 3.3V with a maximum operating temperature of +125°C. Key architectural features include non-volatile Flash configuration for instant-on operation, TransFR™ background reconfiguration, and support for multiple interface standards via flexible sysIO buffers.

Feature Summary

• AEC-Q100 Qualified: Designed for automotive applications with extended temperature range up to +125°C.
• Non-Volatile Architecture: Utilizes single-chip Flash technology for instant-on power-up and high design security without external configuration memory.
• TransFR™ Technology: Enables in-field logic updates and background programming while the system remains operational.
• Flexible I/O Support: Integrated sysIO buffers support LVCMOS (1.2V/1.5V/1.8V/2.5V/3.3V), LVTTL, PCI, LVDS, and other standards.

Applications

• Glue logic replacement and bus bridging in automotive control units.
• Power-up control and initialization management systems.
• General-purpose I/O expansion and interface translation.
• Low-capacity FPGA applications requiring non-volatile configuration.

Procurement Notes

Verify that the specific ordering suffix corresponds to the required temperature grade and package variant. Confirm RoHS compliance status and lead-free packaging requirements against current manufacturing notices. Ensure design tools support the LA-MachXO family for synthesis and implementation.

Selection Notes

Select this component for designs requiring 256 LUTs and up to 78 I/Os in a 100-pin TQFP footprint. Choose based on the necessary core voltage (1.2V–3.3V) and the need for automotive qualification. Note that this density level does not include embedded block RAM or PLLs; consider higher-density devices if clock management or large memory blocks are required.

Part Context

This part belongs to the LA-MachXO Automotive Family, which bridges the gap between CPLDs and low-capacity FPGAs. It combines the non-volatile, instant-on characteristics of CPLDs with the flexible logic architecture of FPGAs. The family is optimized for cost-sensitive, high-volume automotive and industrial applications requiring reliable, secure, and reconfigurable logic solutions.

Replacement Considerations

Direct replacements within the same family include LAMXO256C-3TN100E. For pin-compatible upgrades with increased resources, consider LAMXO640E-3TN100I or LAMXO1200E variants, noting changes in internal architecture such as the addition of PLLs or EBRs.

FAQ

Does the LAMXO256E-3TN100E contain Embedded Block RAM (EBR)?

No, the LA-MachXO256 device contains only distributed RAM (2.0 Kbits). Embedded Block RAM is available in larger devices within the family, such as the LA-MachXO1200 and LA-MachXO2280.

Can the device be reconfigured while the system is powered on?

Yes, the device supports TransFR™ (TFR) technology, which allows for in-field logic updates and background programming of the non-volatile memory while the system continues to operate.

What is the maximum operating temperature for this component?

The LA-MachXO automotive family is qualified for an extended operating temperature range, with a maximum junction temperature of +125°C.