LAMXO256C-3TN100E

Overview

The LAMXO256C-3TN100E is an automotive-grade Field Programmable Gate Array (FPGA) from the LA-MachXO family, qualified to AEC-Q100 standards. It features 256 Logic Elements (LEs), equivalent to 128 Adaptive Logic Modules (ALMs), and provides 78 I/O pins in a 100-pin TQFP package. The device operates within a supply voltage range of 1.71 V to 3.465 V and supports temperatures from -40°C to +125°C. Key architectural features include non-volatile configuration for instant-on operation, TransFR reconfiguration capabilities, and flexible sysIO buffers supporting multiple interface standards.

Feature Summary

• AEC-Q100 Qualified: Automotive grade reliability with extended temperature support up to +125°C.
• Non-Volatile Instant-On: Microsecond power-up time without external configuration memory.
• TransFR Reconfiguration: Enables in-field logic updates while the system remains operational.
• Flexible I/O: Supports LVCMOS 3.3/2.5/1.8/1.5/1.2, LVTTL, PCI, LVDS, and other interfaces via programmable sysIO buffers.

Applications

• Glue logic replacement in automotive control systems
• Bus bridging and interfacing between automotive subsystems
• Power-up control and sequencing logic
• General-purpose control logic in harsh environments

Procurement Notes

Verify the specific suffix '3TN100E' against the manufacturer's current datasheet DS1003 to confirm package type (TQFP) and temperature grade. Ensure design tools like ispLEVER are compatible with the LA-MachXO family. Confirm RoHS compliance status as per the latest product specifications.

Selection Notes

Select this component for applications requiring low-power, non-volatile FPGA functionality with automotive qualification. Compare logic density requirements; if more than 256 LEs or embedded memory is needed, consider higher-density devices like the LAMXO640 or LAMXO1200. Verify I/O voltage levels match the target system interfaces.

Part Context

This part belongs to the LA-MachXO Automotive Family, designed to bridge CPLD and low-capacity FPGA markets. It combines the security and instant-on features of CPLDs with the flexibility of FPGA architecture. The family targets traditional CPLD applications such as glue logic and bus interfacing but offers higher performance and reconfigurability.

Replacement Considerations

Direct replacements within the same family include LAMXO256E variants with different speed grades or temperature ranges. For pin-compatible upgrades, check LAMXO640 devices if additional logic resources are required, though package pin counts may differ.

FAQ

Does the LAMXO256C-3TN100E require external configuration memory?

No, the device uses non-volatile technology that allows it to power up in microseconds without external configuration memory.

What is the maximum operating temperature for this device?

The maximum operating temperature is +125°C, consistent with its automotive grade (AEC-Q100) qualification.

Can the logic be reconfigured while the system is running?

Yes, the device supports TransFR™ Reconfiguration (TFR), which allows in-field logic updates while the system operates.