AT94K05AL-25AQU

Overview

The AT94K05AL-25AQU is a 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 FPGA gates, up to 36 Kbytes of dynamically allocated dual-port SRAM, and JTAG ICE support. The device operates at 3.0V to 3.6V with a maximum clock frequency of 25 MHz for the AVR core. Key peripherals include two UARTs, three timer/counters, and a hardware multiplier.

Feature Summary

• Monolithic FPSLIC architecture integrating 5K-gate AT40K FPGA with AVR RISC core
• Up to 36 Kbytes of shared dual-port SRAM for program and data storage
• On-chip JTAG ICE for extensive debug support and boundary-scan capabilities
• Cache Logic enabling dynamic in-system reconfiguration without data loss

Applications

• Video compression and decompression systems
• Adaptive finite impulse response (FIR) filters and FFT implementations
• Encryption and convolution multimedia applications
• Portable and handheld devices requiring low power consumption

Procurement Notes

Verify the specific ordering suffix 'AQU' against the manufacturer's current package specifications to confirm pinout and thermal characteristics. Confirm RoHS compliance status via the official datasheet or component attributes page prior to procurement. Ensure export documentation requirements are met if applicable.

Selection Notes

Select this part for designs requiring tight integration between logic processing and control tasks within a single chip. The 5K gate count suits moderate complexity logic functions. Ensure the system voltage aligns with the 3.0V–3.6V operating range. Consider the split power supply layout requirement for optimal performance as detailed in the design guidelines.

Part Context

This component belongs to the AT94KAL Series FPSLIC family, which pairs Atmel AT40K FPGAs with AVR microcontrollers. Other members include the AT94K10AL and AT94K40AL, offering higher gate counts. The series utilizes a 0.35µ CMOS five-layer metal process and supports ISP configuration via external EEPROMs.

Replacement Considerations

Direct functional replacements within the same package and pinout include other variants from the AT94KAL series, such as the AT94K10AL or AT94K40AL, provided the gate count and memory resources meet the design requirements. Verify that the replacement part supports the required JTAG ICE functionality.