AT94S05AL-25DGI

FPGAs (Field Programmable Gate Array) With Microcontrollers Overview

The AT94S05AL-25DGI is a Secure Field Programmable System Level Integrated Circuit (FPSLIC) from Microchip Technology, housed in a 144-pin LQFP package. It integrates an AT40K SRAM-based FPGA with 5,000 usable gates and an embedded high-performance AVR 8-bit RISC microcontroller. The device includes 1 Mbit of secure configuration EEPROM memory with security protection and In-System Programming (ISP) capabilities. Operating at a maximum frequency of 25 MHz, it supports a supply voltage range of 3.0V to 3.6V. Key features include up to 36 Kbytes of dynamically allocated SRAM, JTAG debug support, and multiple peripherals such as UARTs, timers, and a 2-wire serial interface.

FPGAs (Field Programmable Gate Array) With Microcontrollers Feature Summary

• Integrated FPSLIC architecture combining AT40K FPGA (5K gates) and AVR RISC microcontroller
• 1 Mbit Secure Configuration EEPROM with ISP and security bit protection
• Up to 36 Kbytes of dynamically allocated Instruction and Data SRAM
• JTAG (IEEE Std. 1149.1 Compliant) interface for on-chip debug support

FPGAs (Field Programmable Gate Array) With Microcontrollers Applications

• Portable and handheld applications requiring low power consumption
• DSP-based systems utilizing the hardware multiplier
• Cache Logic designs with dynamically reconfigurable in-system access
• Embedded control systems needing integrated FPGA and MCU resources

FPGAs (Field Programmable Gate Array) With Microcontrollers Procurement Notes

Verify the specific suffix '25DGI' against official Microchip documentation to confirm the 25 MHz speed grade and industrial temperature range (-40°C to +85°C). Ensure compatibility with the 144-pin LQFP package dimensions. Confirm RoHS compliance status through current manufacturer declarations. Check for any obsolescence notices or lifecycle changes prior to procurement.

FPGAs (Field Programmable Gate Array) With Microcontrollers Selection Notes

Select this component when a design requires both programmable logic and a microcontroller in a single package. The AT94S05AL variant provides 5,000 FPGA gates, suitable for moderate complexity logic functions. Compare against AT94S10AL or AT94S40AL if higher gate counts are needed. Ensure the system design accommodates the 3.0V-3.6V supply voltage and utilizes the available I/O lines for both FPGA and AVR functions.

FPGAs (Field Programmable Gate Array) With Microcontrollers Part Context

The AT94S series belongs to the Secure FPSLIC family, merging Atmel's AT40K FPGA technology with AVR microcontrollers and AT17 Series configuration memories. This integration allows for secure booting and dynamic reconfiguration. The AT94S05AL is the entry-level model in terms of FPGA capacity within this specific secure series, offering a balance of processing power and logic resources.

FPGAs (Field Programmable Gate Array) With Microcontrollers Replacement Considerations

Direct replacements within the same package and pinout include other variants of the AT94S series, such as the AT94S10AL or AT94S40AL, provided the gate count requirements are met. Verify that the speed grade and temperature range match the original specification. Cross-family replacements would require significant redesign due to architectural differences.