AT17F040A-30QC

Overview

The AT17F040A-30QC is a 4-Mbit FPGA configuration flash memory manufactured by Microchip Technology. It operates at a nominal voltage of 3.3V with 5.0V tolerant I/O pins and supports serial download speeds up to 33MHz. The device features an industrial temperature range from -40°C to +85°C and utilizes a low-power CMOS FLASH process. It provides in-system programmability via a 2-wire bus and includes features such as cascading support, page download mode, and emulation of Atmel AT24C serial EEPROMs.

Feature Summary

• In-system programmable via 2-wire serial bus for easy configuration
• Supports cascading read-back for additional configurations or higher-density arrays
• Compatible with Altera FLEX, Excalibur, Stratix, Cyclone, and APEX devices
• Features page download mode allowing storage of multiple configuration bitstreams

Applications

• Configuration of Altera FLEX, Excalibur, Stratix, Cyclone, and APEX FPGAs
• Configuration of Atmel AT40K and AT94K devices
• System reconfiguration using single device holding 4-bitstream files
• Cascaded configurations for larger FPGA arrays

Procurement Notes

Verify the package type matches your design requirements, as the AT17F040A series is available in 8-pad LAP and 20-lead PLCC packages. Confirm that the ordering suffix corresponds to the specific package and lead finish options documented in the official datasheet. Ensure compatibility with your programming hardware, such as the Atmel ATDH2200E system or third-party programmers, before procurement.

Selection Notes

Select this component when configuring SRAM-based FPGAs requiring a cost-effective, serial-access solution. Consider the AT17F040A for applications needing 4-Mbit capacity with 5.0V tolerant I/O. Evaluate the need for page download capabilities if multiple bitstreams must be stored on a single device. Verify that the industrial temperature range meets your environmental operating conditions.

Part Context

The AT17F040A belongs to the AT17FxxxA Series of In-System Programmable Configuration PROMs. This series provides a simple interface to SRAM FPGAs and supports fast serial download speeds. The family includes variants like the AT17F080A for higher density. These configurators are designed to store configuration programs for field programmable gate arrays and support both Atmel and Altera device families.

Replacement Considerations

Public confirmed substitute part numbers: AT17F040A-30CU, AT17F040A-30JU.