AT17LV256A-10JC

Configuration PROMs For FPGAs Overview

The AT17LV256A-10JC is a 256-Kbit (32K x 8) serial EEPROM designed for FPGA configuration. It operates at a maximum clock frequency of 10 MHz and supports 3.3V (±10%) and 5.0V (±5%) supply voltages. The device features in-system programmability via a 2-wire bus, low-power CMOS technology, and a 20-lead PLCC package. It provides high reliability with 100,000 write cycles and 90-year data retention at 85°C.

Configuration PROMs For FPGAs Feature Summary

• Supports In-System Programming (ISP) via a simple 2-wire serial bus interface
• Designed for direct compatibility with Altera FLEX and APEX SRAM-based FPGAs
• Features programmable reset polarity to match specific FPGA requirements
• Includes cascading capability to support higher-density arrays or multiple configurations

Configuration PROMs For FPGAs Applications

• Configuration memory for Altera FLEX and APEX Field Programmable Gate Arrays
• In-system programming of FPGA configuration data
• Cascaded memory systems for expanded FPGA configuration capacity

Configuration PROMs For FPGAs Procurement Notes

Verify the component manufacturer origin, as Atmel was acquired by Microchip Technology. Confirm that the ordering suffix 'JC' corresponds to the 20-lead PLCC package and Commercial temperature range (0°C to 70°C). Ensure the datasheet version matches the specific revision required for your design integration.

Configuration PROMs For FPGAs Selection Notes

Select this part when configuring Altera FLEX or APEX devices requiring 256-Kbit storage. Choose the Industrial variant if operation below 0°C is necessary. Verify voltage compatibility with the target FPGA's power supply rails before implementation.

Configuration PROMs For FPGAs Part Context

This component belongs to the AT17LV256A series of serial EEPROM configurators. It is pin-compatible across the product family within its package type. The device serves as a non-volatile memory solution specifically optimized for loading configuration programs into SRAM-based FPGAs upon power-up.

Configuration PROMs For FPGAs Replacement Considerations

Atmel AT17LV256A-10JI (Industrial Temperature Range)

Configuration PROMs For FPGAs FAQ

How does the device handle cascading for larger configurations?

The nCASC output goes Low when the address counter reaches its maximum value, disabling the DATA line driver. This signal typically drives the nCS input of the next configurator in the chain.

What is the function of the RESET/OE pin?

It acts as an Output Enable (active High) and Reset (active Low). A Low logic level resets the address counter, while a High level enables data output and permits the address counter to count.