AT18F040-30XU

Configuration PROMs For FPGAs Overview

The AT18F040-30XU is a 4-Mbit JTAG In-System Programmable Configuration PROM designed for Field Programmable Gate Arrays. It operates with a 3.3V internal supply and supports 1.8V, 2.5V, or 3.3V I/O levels. The device features a serial download interface with clock speeds up to 33 MHz and includes IEEE 1149.1 boundary-scan testability. Packaged in a 20-lead TSSOP, it provides low-power standby modes and high endurance typical of CMOS Flash processes.

Configuration PROMs For FPGAs Feature Summary

• Supports In-System Programming via the JTAG interface compliant with IEEE 1532 standards.
• Provides pin compatibility with Xilinx Platform Flash PROM series for direct FPGA configuration.
• Enables cascading capabilities to support multiple configurations or higher-density FPGAs.

Configuration PROMs For FPGAs Applications

• Configuration of Xilinx Virtex-II Pro XC2VP4 devices
• Configuration of Xilinx Spartan-3E XC3S100E devices
• Configuration of Xilinx Spartan-IIE XC2S50E devices

Configuration PROMs For FPGAs Procurement Notes

Verify that the specific ordering code matches the required memory density and package type. Confirm that the industrial temperature range (-40°C to +85°C) aligns with the target application environment. Ensure programming equipment supports the JTAG ISP protocol or standard third-party programmers as documented.

Configuration PROMs For FPGAs Selection Notes

Select this component when a cost-effective, non-volatile configuration solution for SRAM-based FPGAs is required. Consider the 4-Mbit capacity relative to the target FPGA bitstream size. Evaluate the need for JTAG programmability versus factory pre-programming options based on design iteration requirements.

Configuration PROMs For FPGAs Part Context

This device belongs to the AT18F Series of Configurators, which also includes 1-Mbit, 2-Mbit, and 7-Mbit variants. These devices are functionally compatible with existing AT17 Series configuration memories used for Atmel AT40KAL series FPGAs. The series utilizes a low-power CMOS Flash process and is available in green, lead-free packages.

Configuration PROMs For FPGAs Replacement Considerations

AT18F040-30JU