Description
The AT17C020 and AT17LV020 (high-density AT17 Series) FPGA Configuration EEPROMs (Configurators) provide an easy-to-use, cost-effective configuration memory for Field Programmable Gate Arrays. The AT17 Series is packaged in the popular 20-pin PLCC. The AT17 Series family uses a simple serial-access procedure to configure one or more FPGA devices. The AT17 Series organization supplies enough memory to configure one or multiple smaller FPGAs. The user can select the polarity of the reset function by programming internal EEPROM bytes. These devices also support a system-friendly READY pin, which signifies a “good” power level to the FPGA and can be used to ensure reliable system power-up.
The AT17 Series Configurators can be programmed with industry-standard programmers or Atmel’s ATDH2200E Programming System.

FEATUREs
• EE Reprogrammable 2,097,152 x 1 bit Serial Memories Designed to Store Configuration
   Programs for Field Programmable Gate Arrays (FPGAs)
• In-System Programmable via 2-wire Bus
• Simple Interface to SRAM FPGAs
• Compatible with Atmel AT6000, AT40K FPGAs, Altera FLEX® Devices,
   ORCA® FPGAs, Xilinx XC3000, XC4000, XC5200, Spartan®, Virtex® FPGAs
• Cascadable Read Back to Support Additional Configurations or
   Future Higher-density Arrays
• Low-power CMOS EEPROM Process
• Programmable Reset Polarity
• Available in PLCC Package (Pin Compatible across Product Family)
• Emulation of Atmel’s AT24CXXX Serial EEPROMs
• Available in 3.3V ± 10% LV and 5V ± 5% C Versions
• System-friendly READY Pin
• Low-power Standby Mode