Description
The AT17C65A/128A/256A and AT17LV65A/128A/256A (low-density AT17A Series) FPGA Configuration EEPROMs (configurators) provide an easy-to-use, cost-effective configuration memory for programming Altera FLEX devices. The AT17A Series is packaged in the popular 20-lead PLCC. The AT17A Series family uses a simple serial access procedure to configure one or more FPGA devices. The AT17A Series organization supplies enough memory to configure one or multiple smaller FPGAs. Using a feature of the AT17A Series, the user can select the polarity of the reset function by programming a special EEPROM byte. These devices also support a write-protection mechanism within its programming mode.

FEATUREs
• Serial EEPROM Family for Configuring Altera FLEX® Devices
• In-System Programmable via 2-wire Bus
• Simple Interface to SRAM FPGAs
• EE Programmable 64K, 128K and 256K Bits Serial Memories Designed to Store Configuration Programs for Field Programmable Gate Arrays (FPGAs)
• Cascadable Read-back to Support Additional Configurations or Future Higher-density Arrays (128K and 256K only)
• Low-power CMOS EEPROM Process
• Programmable Reset Polarity
• Available in the Space-efficient Surface-mount PLCC Package (Compatible across Product Family)
• Emulation of Atmel’s AT24CXXX Serial EEPROMs
• Available in 3.3V ± 10% LV and 5V ± 5% C Versions