AT94K05AL-25AQC

Overview

The AT94K05AL-25AQC is a Field Programmable System Level Integrated Circuit (FPSLIC) from Microchip Technology, combining an AT40K SRAM-based FPGA with an embedded AVR RISC microcontroller. It features 5,000 usable FPGA gates, up to 16 Kbytes of program SRAM, and up to 16 Kbytes of data SRAM. The device operates at a maximum frequency of 33 MHz with a propagation delay of 25 ns. It supports a supply voltage range of 3.0V to 3.6V and includes JTAG ICE support for on-chip debugging.

Feature Summary

• Monolithic FPSLIC architecture integrating AT40K FPGA and AVR RISC core
• 5,000 FPGA gates with distributed FreeRAM and Cache Logic capability
• Embedded AVR core with hardware multiplier and up to 36 Kbytes shared SRAM
• JTAG (IEEE 1149.1) interface for in-system programming and debugging

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 ordering suffix 'C' corresponds to the specific package and temperature grade required for the application. Confirm that the design utilizes a split power supply layout as recommended for AT94KAL devices to ensure signal integrity and proper operation of the 3.3V FPGA I/O structures.

Selection Notes

Select this component when a combined logic and control solution is needed within a single chip. The AT94K05AL offers 5,000 gates, suitable for moderate complexity designs. Ensure the system requires 3.3V operation, as this AL series variant does not support 5V core voltage. Consider the AT94K10AL or AT94K40AL if higher gate counts or more I/O lines are necessary.

Part Context

This part belongs to the AT94KAL Series FPSLIC family, which merges Atmel's AT40K FPGA technology with AVR microcontrollers. The 'AL' suffix denotes the 3.0V-3.6V operating voltage range. The '25' indicates the 25 ns speed grade, and 'AQC' specifies the package type and commercial temperature range.

Replacement Considerations

Direct replacements within the same family include the AT94K10AL-25AQC and AT94K40AL-25AQC for increased capacity. For pin-compatible upgrades with different gate counts, verify the I/O mapping remains consistent across the FPSLIC family.