Microchip Technology AT17N010-10SC

Overview

AT17N010-10SC from Atmel is a 1-Mbit (1,048,576 × 1-bit) serial EEPROM FPGA configuration memory operating at 3.3V ±10%, designed for Master Serial mode loading of Xilinx Spartan-II, Spartan-IIE, and Spartan XL FPGAs. It features pin compatibility with XC17SXXXA/L PROMs, low-power standby current ≤100 µA (industrial), and 20-year data retention at 85°C.

For engineers reviewing the AT17N010-10SC datasheet, AT17N010-10SC pinout, AT17N010-10SC application, or AT17N010-10SC equivalent, this device serves as a drop-in replacement for legacy Xilinx-compatible configuration PROMs in SRAM-based FPGA systems requiring reliable, nonvolatile, serial-programmable boot memory with industrial temperature support.

Technical Context

The AT17N010-10SC implements a simple synchronous serial interface where FPGA-generated CCLK drives the CLK input, DATA outputs configuration bits to FPGA DIN, and RESET/OE + CE jointly control address counter enablement and output tri-state behavior. SER_EN must be tied high during normal FPGA configuration but pulled low to enter Two-Wire ISP programming mode.

It uses a CMOS EEPROM process with programmable logic polarity on RESET/OE (active-low reset / active-high OE), supports both commercial (0°C to +70°C) and industrial (−40°C to +85°C) operation, and enters sub-100 µA standby when CE is high - critical for power-sensitive embedded reconfiguration systems.

Key Specifications

Pinout & Package

AT17N010-10SC is packaged in a 20-lead SOIC (JEDEC 20S2, 0.300" wide body), with 16 functional pins and 4 NC/DC terminals. Pin 1 is DATA; pin 3 is CLK; pin 8 is RESET/OE; pin 10 is CE; pin 11 and 20 are VCC; pin 18 is GND; pin 13 is VCC(SER_EN); pins 2, 4–7, 9, 12–17, and 19 are NC or DC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT17N010-10SC, AT17LV010-10CU offers superior write endurance and voltage flexibility but requires validation of timing margins in high-speed configurations, while XC17S100A provides mechanical compatibility but lacks modern power efficiency, ISP, and long-term supply assurance.

Availability

AT17N010-10SC is available at Aetrix Electronics and suitable for industrial automation, FPGA-based test instrumentation, and legacy Xilinx system sustainment requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for AT17N010-10SC 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

Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and FPGA configuration solutions for industrial, automotive, and communications markets.

The AT17N series was designed specifically to replace Xilinx XC17S PROMs in Spartan-family FPGA systems, delivering enhanced reliability, lower power, and in-system programmability while maintaining strict pin and timing compatibility.

FAQ

What is the primary function of the AT17N010-10SC in an FPGA system?

The AT17N010-10SC serves as a serial configuration EEPROM that stores and delivers the bitstream to SRAM-based FPGAs such as Xilinx Spartan-II, Spartan-IIE, and Spartan XL during power-up or reset. It operates in Master Serial mode, where the FPGA controls the configuration clock (CCLK) and reads data directly from the AT17N010-10SC's DATA pin, eliminating the need for an external controller.

Is the AT17N010-10SC pin-compatible with Xilinx XC17S100A PROMs?

Yes, the AT17N010-10SC is explicitly designed to be pin-compatible with Xilinx XC17SXXXA and XC17SXXXXL PROMs, including the XC17S100A. Its 20-lead SOIC package matches the footprint, pin assignments (e.g., DATA, CLK, CE, RESET/OE), and electrical interface - enabling drop-in replacement in existing Spartan-XL and Spartan-II designs without PCB modification.

How does the SER_EN pin affect the operation of the AT17N010-10SC?

The SER_EN pin (Pin 13) determines operational mode: when held high (tied to VCC), the AT17N010-10SC functions in standard FPGA configuration mode; when pulled low, it enters Two-Wire Serial In-System Programming (ISP) mode, allowing field reprogramming without removing the device from the board. SER_EN must remain high during normal FPGA boot sequences.

What is the maximum clock frequency supported by the AT17N010-10SC?

The AT17N010-10SC supports a maximum clock frequency of 15 MHz in commercial temperature range (0°C to +70°C) and 10 MHz in industrial range (−40°C to +85°C). This timing is specified under VCC = 3.3V ±10% and defines the upper limit for CCLK-driven configuration speed in Spartan-family FPGA systems using the AT17N010-10SC.

Does the AT17N010-10SC support in-system programming (ISP)?

Yes, the AT17N010-10SC supports Two-Wire Serial In-System Programming via the SER_EN pin. When SER_EN is driven low, the device enters ISP mode and accepts programming commands through the DATA and CLK pins using industry-standard protocols. This capability enables field updates without socket removal or external programmers - a key advantage over legacy Xilinx PROMs like the XC17S100A.