AT94K05AL-25BQC

Overview

The AT94K05AL-25BQC is a monolithic Field Programmable System Level Integrated Circuit (FPSLIC) combining an Atmel AT40K SRAM-based FPGA with an embedded high-performance AVR 8-bit RISC microcontroller. The device features 5,000 usable FPGA gates and up to 36 Kbytes of dynamically allocated instruction and data SRAM. It operates within a voltage range of 3.0V to 3.6V and supports a maximum clock frequency of 33 MHz for PCI-compliant I/O. The architecture includes a hardware multiplier, JTAG ICE support, and extensive on-chip debug capabilities.

Feature Summary

• Monolithic FPSLIC integrating 5K-gate AT40K FPGA with AVR Enhanced RISC core
• Up to 36 Kbytes of shared dual-port SRAM (15 ns access time)
• JTAG (IEEE 1149.1) interface for in-system programming and debugging
• Embedded peripherals including two UARTs, two-wire serial interface, and timers

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 specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure compatibility with split power supply layouts as recommended for AT94KAL devices. Confirm RoHS compliance status through official datasheets prior to procurement.

Selection Notes

Select this component when a combined FPGA and microcontroller solution is required to reduce board space. The AT94K05AL offers 5,000 gates, suitable for moderate complexity logic designs. Consider the dynamic reconfiguration capabilities if system adaptability is needed without losing data during runtime updates.

Part Context

This part belongs to the AT94KAL Series FPSLIC family, which merges Atmel's AT40K FPGA technology with AVR microcontroller cores. The series provides a unified development environment using System Designer software, allowing co-verification of both the FPGA logic and AVR firmware within a single tool suite.

Replacement Considerations

Direct replacements within the same gate count family include the AT94K05AL-25DQC or variants with different speed grades such as the -30QI. Cross-family migration to newer Microchip FPSLIC devices may require significant architectural redesign due to differences in memory allocation and peripheral sets.