AT94K10AL-25BQU

Overview

The AT94K10AL-25BQU is a monolithic Field Programmable System Level Integrated Circuit (FPSLIC) combining an Atmel AT40K SRAM-based FPGA with an embedded high-performance AVR RISC microcontroller core. It features 10,000 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 voltage range of 3.0V to 3.6V. Key specifications include a 33 MHz PCI-compliant FPGA I/O structure, JTAG ICE support for on-chip debugging, and extensive peripheral integration including UARTs, timers, and a hardware multiplier.

Feature Summary

• Integrated Architecture: Combines 10K-gate AT40K FPGA with an 8-bit AVR RISC microcontroller core.
• Memory Resources: Provides up to 36 Kbytes of shared dual-port SRAM, including dedicated program and data memory blocks.
• Debugging Support: Includes JTAG (IEEE std. 1149.1) interface with On-Chip In-Circuit Emulator (ICE) capabilities.
• Peripheral Integration: Features two programmable UARTs, three timer/counters, a 2-wire serial interface, and a hardware multiplier.

Applications

• Portable and handheld applications requiring low static and dynamic power consumption.
• Multimedia systems involving video compression/decompression, encryption, and convolution.
• DSP-optimized designs utilizing adaptive FIR filters, FFT, and DCT algorithms.
• Systems requiring dynamic reconfigurable logic (Cache Logic) for adaptive processing.

Procurement Notes

Verify the ordering suffix 'BQU' corresponds to the specific package type and temperature grade defined in the official Microchip/Atmel datasheet. Confirm that the 'J' designation for JTAG ICE support is present in the date code or part marking if debug functionality is required. Ensure PCB layout supports split power supplies as recommended for AT94KAL devices to maintain signal integrity and power stability.

Selection Notes

Select this model when 10,000 FPGA gates are sufficient for the logic design. Compare against AT94K05AL for lower gate counts or AT94K40AL for higher density requirements. Ensure the system voltage aligns with the 3.0V–3.6V operating range. Consider the available SRAM allocation (up to 36 Kbytes) against application memory needs, noting the fixed versus configurable partition options.

Part Context

This component belongs to the AT94KAL Series FPSLIC family, which integrates Atmel's AT40K FPGA technology with AVR microcontrollers. The series includes variants with 5K, 10K, and 40K gates. The AT94K10AL specifically offers a balance of logic resources and memory, fabricated on a 0.35µ CMOS five-layer metal process designed for high performance and low power consumption.

Replacement Considerations

Direct replacements within the same family include the AT94K05AL (5K gates) and AT94K40AL (40K gates), provided pin compatibility and resource requirements are met. Verify that any substitute maintains the AL suffix for the 3.0V–3.6V operating voltage range and the BQU package style.