AT17F040-30CI

Overview

The AT17F040-30CI is a 4-Mbit serial configuration memory device designed for Field Programmable Gate Arrays (FPGAs). It operates within an industrial temperature range of -40°C to +85°C and supports a supply voltage of 2.97V to 3.63V. The component utilizes a low-power CMOS FLASH process and features fast serial download speeds up to 33 MHz. It offers in-system programmability via a 2-wire bus and provides compatibility with various FPGA architectures including Xilinx, Altera, and Atmel devices.

Feature Summary

• Supports In-System Programming (ISP) through a 2-wire serial interface
• Enables cascading for expanded configuration capacity or higher-density arrays
• Provides page-select functionality to store multiple bitstreams in a single device
• Features 5V tolerant I/O pins for flexible system integration

Applications

• Configuration of SRAM-based FPGAs in master serial mode
• System reconfiguration using single device storage of bitstream files
• Cascaded configurations for multi-FPGA daisy-chain setups

Procurement Notes

Verify the specific ordering suffix 'CI' confirms the industrial temperature rating (-40°C to +85°C) and the 20-lead PLCC package type. Confirm that the manufacturer transition from Atmel to Microchip Technology does not alter the functional specifications or pinout compatibility required for your existing FPGA design.

Selection Notes

Select this component when a 4-Mbit capacity is sufficient for the target FPGA configuration requirements. Ensure the design accommodates the 20-lead PLCC footprint. Consider the AT17F080 variant if larger memory capacity or additional package options like TQFP are necessary for the application layout.

Part Context

This part belongs to the AT17F Series of In-System Programmable Configuration PROMs. These configurators provide cost-effective memory solutions for establishing the logic functions of SRAM-based FPGAs upon power-up or command. The series is engineered for simple serial access procedures compatible with industry-standard programming tools.

Replacement Considerations

The AT17F040-30JI serves as a commercial-grade alternative with identical electrical characteristics but a narrower operating temperature range (0°C to 70°C).