AT94S40AL-25DGC

Overview

The AT94S40AL-25DGC is a Multi-Chip Module (MCM) integrating an AT40K SRAM-based Field Programmable System Level Integrated Circuit (FPSLIC), a high-performance 8-bit AVR RISC microcontroller, and 1 Mbit of Secure Configuration EEPROM. The FPGA core provides 40,000 usable gates with distributed single/dual-port SRAM and Cache Logic capabilities. The embedded AVR core operates at up to 32 MHz, delivering approximately 1 MIPS per MHz, and includes extensive peripherals such as two UARTs, timers, and a hardware multiplier. The device supports In-System Programming (ISP) and features security protection for configuration memory.

Feature Summary

• Integrates 40,000-gate AT40K FPGA with up to 36 Kbytes of dynamically allocated instruction and data SRAM.
• Embedded AVR Enhanced RISC Microcontroller Core with hardware multiplier and standard peripherals including dual UARTs.
• 1 Mbit Secure Configuration EEPROM with In-System Programming (ISP) and programmable security bits.
• JTAG (IEEE Std. 1149.1 Compliant) interface for on-chip debug support and boundary-scan capabilities.

Applications

• Portable and handheld applications requiring low static and dynamic power consumption.
• DSP-based systems utilizing the high-performance hardware multiplier and FPGA logic.
• Secure embedded control systems requiring protected configuration memory.
• Real-time control applications leveraging the integrated microcontroller and timer peripherals.

Procurement Notes

Verify the specific suffix '25DGC' against official manufacturer documentation to confirm package type, temperature range, and speed grade. Ensure compatibility with the required 3.0V to 3.6V supply voltage and 5V tolerant I/O levels. Confirm that the design supports the necessary JTAG programming infrastructure for ISP operations.

Selection Notes

Select this component when a combined FPGA and microcontroller solution is required within a single package. The AT94S40AL variant offers 40,000 FPGA gates, suitable for complex logic designs. Consider the 25MHz speed grade if system timing requirements align with the specified throughput. Verify that the 256-pin CABGA package fits the board layout constraints.

Part Context

The AT94S40AL-25DGC belongs to the AT94S Secure FPSLIC family, which combines Atmel's AT40K FPGA technology with AVR microcontrollers and AT17 series configuration memories. This family is designed to reduce time-to-market by integrating microcontroller development, FPGA place-and-route, and system co-verification into a unified software suite.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer resources for cross-reference information or updated product line replacements.