AT17F32-30BJI

Overview

The AT17F32-30BJI is a 32-Mbit serial configuration PROM designed for Field Programmable Gate Arrays (FPGAs). It operates within an industrial temperature range of -40°C to +85°C and utilizes a 44-lead PLCC package. The device supports a maximum clock frequency of 33 MHz during configuration and 10 MHz during programming. It features 3.3V output capability with 5V tolerant I/O pins, enabling compatibility with various FPGA architectures.

Feature Summary

• Supports In-System Programming (ISP) via a 2-wire bus interface
• Enables cascading for expanded memory configurations or higher-density arrays
• Provides page-select functionality to store multiple bitstreams in a single device
• Compatible with major FPGA families including Altera, Xilinx, and Lattice

Applications

• Configuration of SRAM-based FPGAs in Master Serial mode
• Daisy-chained FPGA systems requiring extended configuration memory
• Systems requiring simple reconfiguration using a single device for multiple bitstreams
• Industrial embedded designs utilizing Atmel AT40K, AT94K, or equivalent devices

Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature grade (-40°C to +85°C) rather than Commercial. Confirm the package type matches the 44-lead PLCC requirement. Ensure the design accounts for the 3.3V supply voltage tolerance of ±10%. Check for lead-free (LHF) packaging availability if required by environmental regulations.

Selection Notes

Select this component when a high-density serial configurator is needed for complex FPGA designs. It is suitable for applications requiring daisy-chaining capabilities or multi-bitstream storage via paging. Consider the 33 MHz download speed for time-sensitive configuration cycles. Ensure the target FPGA supports the Master Serial configuration mode compatible with this device.

Part Context

This part belongs to the AT17F series of In-System Programmable Configuration PROMs. Originally developed by Atmel, these devices are now managed under Microchip Technology. The series provides cost-effective configuration solutions for various FPGA platforms, bridging the gap between parallel configuration requirements and simpler serial interfaces.

Replacement Considerations

The AT17F32-30BJC serves as the commercial temperature variant of this component. For lead-free industrial applications, the AT17F32-30BJU is available. Verify pinout and electrical compatibility before substituting with other serial flash memories, as control signal logic may differ.