AT17F040A-30JI

Overview

The AT17F040A-30JI 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 utilizes a 2-wire serial bus for In-System Programming (ISP). The component supports 3.3V output with 5V tolerant I/O pins, enabling direct interfacing with SRAM-based FPGAs. It features fast serial download speeds up to 33 MHz and offers low-power standby mode capabilities.

Feature Summary

• Supports In-System Programming via a simple 2-wire serial bus interface
• Provides compatibility with Altera FLEX, Excalibur, Stratix, Cyclone, APEX, Atmel AT40K, and AT94K devices
• Enables cascading read-back functionality to support additional configurations or higher-density arrays

Applications

• Configuration of Altera FLEX, Excalibur, Stratix, Cyclone, and APEX FPGA devices
• Configuration of Atmel AT40K and AT94K FPGA devices
• Emulation of Atmel AT24CXXX serial EEPROMs in system designs

Procurement Notes

Verify the specific ordering suffix 'JI' confirms the Industrial temperature range (-40°C to +85°C) and 20-lead PLCC package as defined in the official datasheet. Ensure the source document explicitly lists this part number under the 4-Mbit memory size category. Confirm that the manufacturer designation aligns with Microchip Technology's acquisition of the original Atmel product line.

Selection Notes

Select this component when designing systems requiring reliable configuration storage for SRAM-based FPGAs. It is suitable for applications needing direct interface to FPGA control signals without external controllers. Consider its low-power standby mode and high endurance characteristics for robust embedded environments.

Part Context

This device belongs to the AT17FxxxA series of In-System Programmable Configuration PROMs. These configurators provide cost-effective memory solutions for loading configuration programs into FPGAs. The series includes variants with different memory densities and package options to accommodate various design constraints.

Replacement Considerations

The AT17F080A-30JI serves as a compatible alternative offering double the memory capacity while maintaining similar interface characteristics.