Overview

The AT17LV256A is a 256-kilobit In-System Programmable Configuration EPROM (Configurator) designed to configure Field Programmable Gate Arrays (FPGAs). It's a low-voltage device, indicated by the "LV" in the part number. The "-10PI" suffix refers to the speed grade and package type. It stores the configuration data for an FPGA, which is loaded into the FPGA upon power-up or reset, defining the FPGA's functionality.

Applications

• Configuration of Xilinx and Altera FPGAs.
• Storing configuration data for CPLDs.
• Boot-up code storage for embedded systems.
• Replacing DIP switches or jumpers for setting system configuration.
• Industrial control systems.

Features

• 256-kilobit (32K x 8) memory array.
• In-system programmable via serial interface.
• Low-voltage operation (3.3V).
• Fast access time (10ns).
• Low power consumption.
• Reprogrammable.
• Compact package.
• Serial data output.
• High reliability.

Benefits

• Non-volatile storage ensures configuration data is retained without power.
• In-system programmability allows for easy updates to the FPGA configuration.
• Low-voltage operation reduces power consumption and simplifies system design.
• Fast access time ensures quick FPGA configuration at startup.
• Reprogrammability enables design changes without replacing the configuration device.
• Reduced board space due to compact packaging.

Additional Details

The AT17LV256A supports serial data transfer, making it easy to interface with FPGAs and other devices. The in-system programmability feature allows for convenient updates to the configuration data without requiring the device to be removed from the circuit board. The low-voltage operation simplifies power supply requirements and reduces power consumption. The fast access time ensures that the FPGA is configured quickly upon power-up. Different package options were available to accommodate various board layouts and space constraints. The speed grade determines the maximum clock frequency for the serial interface. The Data Sheet will explicitly document timing characteristics, voltage ranges, supported FPGAs and CPLDs, package types and temperature ratings.