AT94K40AL-25DQC

Overview

The AT94K40AL-25DQC is a monolithic Field Programmable System Level Integrated Circuit (FPSLIC) combining an Atmel AT40K SRAM-based FPGA with an embedded AVR 8-bit RISC microcontroller. It features 40,000 usable FPGA gates, up to 32 Kbytes of program SRAM, and up to 16 Kbytes of data SRAM. The device operates at 3.0V to 3.6V with a typical throughput of 19 MIPS at 25 MHz. Key architectural elements include Cache Logic for dynamic reconfiguration, JTAG ICE support, and a high-performance hardware multiplier.

Feature Summary

• Monolithic FPSLIC architecture integrating AT40K FPGA and AVR RISC core
• 40,000 usable FPGA gates with Cache Logic for dynamic in-system reconfiguration
• Up to 32 Kbytes Program SRAM and 16 Kbytes Data SRAM with dual-port access
• JTAG (IEEE 1149.1) interface for on-chip debugging and boundary-scan

Applications

• Video compression and decompression systems
• Encryption and convolution algorithms
• Adaptive finite impulse response (FIR) filters
• Fast Fourier transforms (FFT) and discrete-cosine transforms (DCT)

Procurement Notes

Verify the presence of the 'J' suffix in the date code or ordering information to confirm JTAG ICE support. Ensure PCB layout supports split power supplies for the FPGA and AVR cores as recommended by design guidelines. Confirm RoHS compliance status through official manufacturer documentation prior to procurement.

Selection Notes

Select this model for designs requiring 40,000 FPGA gates and significant on-chip memory resources. The AL variant specifies a 3.0V to 3.6V operating voltage range. Consider the ATFS40 support device if external configuration memory is required for power-up loading. Verify package availability matches the DQC footprint requirements.

Part Context

This component belongs to the AT94KAL Series FPSLIC family, which pairs AT40K FPGAs with AVR microcontrollers. The AT94K40AL represents the highest gate count variant in this series, offering 40K gates compared to 5K and 10K options. The family utilizes a 0.35µ CMOS five-layer metal process for low-power operation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.