AT17C65-10CC

Overview

The AT17C65-10CC is a 64K-bit (65,536 x 1-bit) serial EEPROM configurator designed for FPGA configuration. It operates at 5V nominal and supports industrial temperature ranges (-40°C to +85°C). The device features a simple serial interface compatible with Master Serial Mode, allowing direct connection to FPGAs via CLK, DATA, CE, and RESET/OE pins. It includes programmable reset polarity, write protection, and low-power standby mode.

Feature Summary

• EE Programmable serial memory designed specifically for storing configuration programs for Field Programmable Gate Arrays (FPGAs)
• In-System Programmable via 2-wire bus with internal generation of programming super voltages
• Programmable reset polarity allows selection of active High or Low logic levels for the RESET/OE input
• Low-power CMOS EEPROM process with standby mode consuming less than 75 µA at 5.0V

Applications

• Configuration of Atmel AT6000 and AT40K series FPGAs
• Configuration of Altera FLEX devices
• Configuration of Xilinx XC3000, XC4000, XC5200, SPARTAN, and Virtex FPGAs
• Configuration of Lucent ORCA and Motorola MPA1000 FPGAs

Procurement Notes

Verify the specific suffix 'CC' against official Microchip/Atmel ordering guides, as standard datasheets list 'PC', 'NC', 'JC', and 'SC' variants. Confirm that the required package matches the available 20-lead PLCC (20J) or other supported formats. Ensure the industrial temperature grade (-40°C to +85°C) aligns with system requirements. Check for RoHS compliance status if applicable to your manufacturing standards.

Selection Notes

Select this component when configuring single or multiple smaller FPGAs requiring a cost-effective serial solution. Choose the AT17C65 over higher-density models (128K/256K) if the FPGA bitstream size fits within 64K bits. Consider the AT17LV65 variant only if the system operates strictly at 3.3V. Verify compatibility with the target FPGA's Master Serial Mode requirements before finalizing the design.

Part Context

The AT17C65 belongs to the low-density AT17 Series of FPGA Configuration EEPROMs. This family provides easy-to-use, cost-effective configuration memory solutions. The series utilizes a simple serial-access procedure to configure one or more FPGA devices. It is part of a broader lineup including 128K and 256K density options, all sharing pin-compatible packages like PLCC and SOIC.

Replacement Considerations

AT17LV65-10CC (3.3V version)

FAQ

Can the AT17C65 be cascaded with other AT17 series devices?

No, the AT17C65 cannot be cascaded. Cascading is supported only by the AT17C/LV128 and AT17C/LV256 devices. The AT17C65 can only be used as a standalone device or at the end of a cascade chain.

How is the reset polarity configured?

The reset polarity is programmable as either active High or active Low. This is done by programming a special EEPROM byte using an industry-standard programmer algorithm or Atmel’s ATDH2200E Programming Kit.