AT94K05AL-25DQC

Overview

The AT94K05AL-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 5,000 usable FPGA gates and up to 36 Kbytes of dynamically allocated instruction and data SRAM. The device operates at 3.0V to 3.6V and supports JTAG ICE for on-chip debugging. Key specifications include a high-performance DSP-optimized core, distributed FreeRAM, Cache Logic for dynamic reconfiguration, and multiple oscillator circuits. It utilizes a 0.35µm CMOS five-layer metal process.

Feature Summary

• AT40K FPGA Core: 5,000 gates with FreeRAM and Cache Logic for dynamic in-system reconfiguration.
• AVR Microcontroller: Enhanced RISC architecture with hardware multiplier, approaching 1 MIPS/MHz performance.
• Memory Architecture: Up to 36 Kbytes of shared dual-port SRAM (up to 16 Kbytes x 16 program, 16 Kbytes x 8 data).
• Debug Interface: JTAG (IEEE std. 1149.1) compliant interface with On-Chip ICE support.

Applications

• Video compression and decompression systems requiring adaptive FIR filters or FFTs.
• Portable and handheld applications due to low static and dynamic power consumption.
• Multimedia encryption and convolution processing using DSP-optimized FPGA cells.
• Systems requiring custom peripherals integrated directly with microcontroller logic.

Procurement Notes

Verify the specific ordering suffix 'DQC' against official Microchip documentation to confirm package type and temperature range. Confirm JTAG ICE support availability via date code markings as indicated in the datasheet. Ensure PCB layout supports split power supply requirements for the 3.3V FPGA and AVR cores.

Selection Notes

Select this component when system design requires tight integration of programmable logic and microcontroller control without external interconnects. The AT94K05 variant provides 5,000 gates, suitable for moderate complexity logic functions. Consider the AT94K10 or AT94K40 if higher gate counts or increased I/O lines are required for the same package footprint.

Part Context

This part belongs to the AT94KAL Series FPSLIC family, which integrates Atmel's AT40K FPGA technology with AVR microcontrollers. The series includes AT94K05AL, AT94K10AL, and AT94K40AL variants, offering scalable FPGA resources from 5K to 40K gates while maintaining consistent pin locations for design migration within the same package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult Microchip Technology for current equivalent products or next-generation replacements.