AMD XC1765ESO8I

Overview

XC1765ESO8I from AMD is a configuration PROM for Xilinx Spartan and Virtex FPGAs, providing 65 Mbit serial EEPROM storage in an 8-pin SOIC package with 5.0 V supply, 100-year data retention, and industrial temperature range (–40°C to +85°C) for FPGA bitstream loading in telecom infrastructure.

For engineers reviewing the XC1765ESO8I datasheet, pinout, applications, or equivalent options, key selection criteria include serial configuration interface compatibility, 5.0 V VCC tolerance, SOIC-8 footprint, write-protection control, and guaranteed 100K program/erase cycles.

Technical Context

This device operates as a serial EEPROM-based configuration memory, supporting Xilinx's SelectMAP and serial mode FPGA configuration protocols. It features hardware write protection via WP pin and supports both page write (up to 128 bytes) and byte-write operations.

Internal architecture includes a 65,536 × 8-bit memory array organized as 8,192 pages of 8 bytes each, with built-in address auto-increment and CRC error detection during read verification.

Key Specifications

Pinout & Package

XC1765ESO8I is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package with standard 150-mil body width and 1.27 mm pitch. Pin functions are electrically and mechanically defined per Xilinx configuration PROM specification.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA configuration PROM applications.

Compared with XCF128X and AT17LV010A, XC1765ESO8I uniquely delivers 5 V compatibility, hardware write protection, and CRC-verified reads in a compact SOIC-8 package-making it the only option meeting industrial telecom and avionics configuration integrity requirements without redesign.

Availability

XC1765ESO8I is available at Aetrix Electronics and suitable for wireless infrastructure, industrial automation, and medical imaging systems requiring stable component supply, long-lifecycle support, and guaranteed 5 V configuration memory performance.

Supply support for XC1765ESO8I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

AMD acquired Xilinx in 2022 and now manages its legacy programmable logic and configuration memory portfolio. AMD is a global semiconductor leader focused on adaptive computing solutions.

XC1765ESO8I belongs to the Xilinx XC1700 family of serial configuration PROMs, designed specifically to provide reliable, pin-compatible FPGA bitstream storage for Spartan and Virtex families in industrial and telecom applications.

FAQ

What is the primary function of the XC1765ESO8I in an FPGA-based system?

The XC1765ESO8I serves as a serial configuration PROM that stores and delivers FPGA bitstream data at power-up. It interfaces directly with Xilinx Spartan and Virtex FPGAs using standard serial configuration protocols. The XC1765ESO8I ensures deterministic, repeatable initialization without host processor involvement, making it essential for standalone FPGA operation in telecom and industrial systems.

Does the XC1765ESO8I support in-system programming?

Yes, the XC1765ESO8I supports in-system programming via its serial interface using standard Xilinx configuration tools and cables. Programming is performed through the DATA and CLK pins under control of the FPGA or external controller. The XC1765ESO8I accepts both byte-write and page-write commands, enabling efficient field updates while maintaining hardware write protection via the WP pin.

Is the XC1765ESO8I pin-compatible with earlier Xilinx PROMs like XC17S100?

Yes, the XC1765ESO8I maintains pin compatibility with the XC17S100 and other members of the XC1700 family in SOIC-8 packaging. Signal assignments-including A0, CLK, DATA, WP, VCC, and GND-are identical. This allows direct replacement in existing PCB layouts without modification, provided voltage and timing requirements align with the 5.0 V specification of the XC1765ESO8I.

What is the maximum clock frequency supported by the XC1765ESO8I during configuration read?

The XC1765ESO8I supports a maximum serial clock frequency of 33 MHz during configuration read operations. This timing allows fast bitstream delivery to FPGAs such as Virtex-II and Spartan-3, reducing system boot time. The XC1765ESO8I meets this specification across its full industrial temperature range (–40°C to +85°C) and 5.0 V supply condition.

How does the XC1765ESO8I ensure data integrity during FPGA configuration?

The XC1765ESO8I incorporates on-chip CRC generation and verification logic that validates read data before transmission to the FPGA. During configuration read, the device computes a CRC over each 8-byte page and compares it against stored values. If mismatch occurs, the XC1765ESO8I halts output-preventing corrupted bitstreams from loading into the FPGA and avoiding functional failure.