AT17F080-30JI

Overview

The AT17F080-30JI is an 8-Mbit serial configuration PROM designed for Field Programmable Gate Arrays. It operates within a supply voltage range of 2.97 V to 3.63 V and supports industrial temperatures from -40°C to +85°C. The device features a simple serial interface with clock frequencies up to 33 MHz during configuration and 10 MHz during programming. It utilizes a low-power CMOS Flash process, offering typical endurance of 5,000 write cycles and standby current below 1 mA.

Feature Summary

• Supports In-System Programming via a 2-wire bus using dedicated programmers or third-party tools.
• Enables cascading of multiple devices to configure larger FPGA arrays or support higher-density applications.
• Provides page-select functionality to partition memory space for storing and retrieving multiple configuration bitstreams.
• Features 5V tolerant I/O pins compatible with various FPGA masters including Xilinx and Altera devices.

Applications

• Configuration of SRAM-based FPGAs in Master Serial mode
• Cascaded configuration systems for high-density FPGA arrays
• Industrial embedded systems requiring reconfigurable logic

Procurement Notes

Verify the specific package type against the ordering code suffix. The 'J' indicates a 20-lead PLCC package, while 'I' denotes the industrial temperature range. Confirm that the design utilizes the correct pinout for the 20-lead PLCC variant, as pin assignments differ between standard and Virtex-compatible layouts. Ensure compatibility with the intended FPGA master controller signals.

Selection Notes

Select this component when an 8-Mbit capacity is required for FPGA configuration. The industrial temperature rating makes it suitable for harsh environments where commercial grade parts may fail. Consider the 20-lead PLCC package if board space constraints favor this footprint over TQFP or LAP options. Verify that the host system can support the necessary serial clock speeds and control signal timing requirements.

Part Context

This part belongs to the AT17F series of In-System Programmable Configuration PROMs. These devices are engineered to provide cost-effective and easy-to-use memory solutions for configuring Field Programmable Gate Arrays. The series supports both commercial and industrial operating ranges and is compatible with a wide variety of FPGA families from major manufacturers.

Replacement Considerations

AT17F080-30BJI (44-lead PLCC package)

FAQ

How does the device handle cascading for larger configurations?

The CEO output goes Low when the internal address counter reaches its maximum value, which disables the DATA line driver and enables the CE input of the next configurator in the chain.

What is the function of the PAGE_EN pin?

When PAGE_EN is High, the configuration download address space is partitioned into four equal pages, allowing users to store and retrieve multiple configuration bitstreams from a single device.