AT94K05AL-25BQU

Overview

The AT94K05AL-25BQU is a Field Programmable System Level Integrated Circuit (FPSLIC) combining an AT40K SRAM-based FPGA with an embedded AVR microcontroller core. It features 5,000 usable FPGA gates and up to 36 Kbytes of dynamically allocated instruction and data SRAM. The device operates at a maximum clock frequency of 25 MHz within a 3.0V to 3.6V supply range. Key specifications include a high-performance hardware multiplier, JTAG ICE support for on-chip debugging, and 5V-tolerant I/O structures capable of 20 mA sink/source current.

Feature Summary

• Monolithic FPSLIC architecture integrating AT40K FPGA with AVR RISC core
• Up to 36 Kbytes of shared dual-port SRAM for program and data storage
• JTAG (IEEE 1149.1) interface for extensive on-chip debug support
• 5V I/O tolerant with 3.3V PCI-compliant FPGA I/O structures

Applications

• Portable and handheld applications requiring low static and dynamic power consumption
• DSP-optimized designs utilizing the hardware multiplier and Cache Logic
• Systems requiring dynamic reconfigurable in-system logic without data loss
• Embedded control solutions needing integrated memory and programmable I/O

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure that the procurement channel provides genuine components with traceable origin. Confirm that the device date code includes the 'J' indicator if JTAG ICE functionality is required for the design. Cross-reference the RoHS status with current regulatory requirements before finalizing orders.

Selection Notes

Select this component when a combined FPGA and microcontroller solution reduces board space and complexity. The AT94K05AL variant provides 5,000 gates, suitable for moderate logic density. Consider the 25BQU suffix for the specific package and speed grade. Evaluate the available SRAM allocation between program and data memory based on application requirements. Ensure the design supports split power supplies as recommended for optimal performance.

Part Context

This part belongs to the AT94KAL Series FPSLIC family, which merges Atmel's AT40K FPGA technology with AVR microcontrollers. The series includes variants with different gate counts, such as the AT94K10AL and AT94K40AL. The AT94K05AL specifically offers 5,000 gates and 256 FPGA core cells. All devices in this series share a consistent pinout for easy design migration within the same package footprint.

Replacement Considerations

Direct replacements within the AT94KAL series include the AT94K10AL and AT94K40AL for higher gate counts. Verify that any substitute maintains the same operating voltage range and package dimensions. Check if the replacement part supports the required JTAG ICE functionality by inspecting the date code designation.