AT17F040-30VJI

Overview

The AT17F040-30VJI is a 4-Mbit serial configuration PROM designed for Field Programmable Gate Arrays (FPGAs). It operates at a nominal 3.3V supply voltage with 5V tolerant I/O pins and supports industrial temperature ranges from -40°C to +85°C. The device features fast serial download speeds up to 33 MHz and allows in-system programming via a 2-wire bus. It is packaged in a 20-lead Plastic J-leaded Chip Carrier (PLCC) and provides low-power standby mode capabilities.

Feature Summary

• Designed specifically to store configuration programs for SRAM-based FPGAs
• Supports In-System Programming (ISP) using a simple 2-wire bus interface
• Features 5V tolerant I/O pins compatible with various FPGA logic levels
• Includes cascading capability through the CEO output for multi-device configurations

Applications

• Configuration of Xilinx XC3000, XC4000, and Virtex series FPGAs
• Configuration of Altera FLEX and APEX devices
• Configuration of Atmel AT40K and AT94K programmable logic devices
• Daisy-chained configuration setups requiring multiple memory devices

Procurement Notes

Verify that the ordering suffix VJI corresponds to the 20-lead PLCC package and Industrial temperature range (-40°C to +85°C). Confirm compatibility with the specific FPGA master serial mode requirements. Ensure programming equipment supports the 2-wire serial protocol for ISP operations. Check for any end-of-life notifications or discontinuance notices associated with this legacy component.

Selection Notes

Select this component when a cost-effective, serial-access configuration memory is required for SRAM-based FPGAs. It is suitable for designs needing 5V tolerance on I/O lines while operating at 3.3V. Consider the 20-lead PLCC package if board space permits larger footprints compared to LAP packages. Verify that the target FPGA supports the Master Serial mode for automatic configuration loading upon power-up.

Part Context

This part belongs to the AT17F Series of In-System Programmable Configuration PROMs. The series includes variants like the AT17F080 for higher density applications. These configurators are engineered to simplify the FPGA setup process by providing a straightforward serial interface that eliminates the need for complex parallel configuration buses.

Replacement Considerations

Public confirmed substitute part numbers: AT17F040-30JI, AT17F040-30VJC.