Microchip Technology AT17N002-10SC

Overview

AT17N002-10SC from Atmel is a 2-Mbit (2,097,152 × 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 mode (150 µA industrial), and 20-year data retention at 85°C.

For engineers reviewing the AT17N002-10SC datasheet, AT17N002-10SC pinout, AT17N002-10SC application, or AT17N002-10SC equivalent, this page delivers verified package mapping (20-lead SOIC), confirmed timing parameters (FMAX = 15 MHz commercial), endurance (10 write cycles), interface logic (RESET/OE dual-function), and real-world FPGA configuration use cases.

Technical Context

The AT17N002-10SC implements a serial-access configuration memory architecture optimized for direct interfacing with SRAM-based FPGAs in Master Serial mode. Its control signals-CE (active-low chip enable), RESET/OE (programmable active-low reset / active-high output enable), and CLK-synchronize bitstream delivery to FPGA DIN without external controllers.

It supports two operational modes: normal FPGA configuration (SER_EN tied to VCC) and Two-Wire Serial In-System Programming (SER_EN pulled low). The device uses internal charge pumps for programming, eliminating external high-voltage supplies, and enters sub-150 µA standby when CE is high.

Key Specifications

Pinout & Package

AT17N002-10SC is packaged in a 20-lead SOIC (JEDEC 20S2, 0.300" wide body), with 16 functional pins and 4 NC/DC terminals. Pin assignments are fully defined per Atmel's 3020C–CNFG–08/07 datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT17N002-10SC, AT17LV002-10SC offers higher endurance and broader voltage support while maintaining full pin and function compatibility; XC17S200A provides lower cost but eliminates in-system reprogrammability and long-term bitstream update capability.

Availability

AT17N002-10SC is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based motor drives, telecom line cards, and legacy Spartan XL field upgrades requiring stable component supply across extended product lifecycles.

Supply support for AT17N002-10SC 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.

The AT17N series was designed specifically as serial configuration EEPROMs for Xilinx Spartan-family FPGAs, emphasizing pin compatibility, industrial reliability, and seamless integration into Master Serial boot architectures.

FAQ

What is the primary function of the AT17N002-10SC in an FPGA system?

The AT17N002-10SC serves as a serial configuration memory that stores and delivers the bitstream to Xilinx Spartan-II, Spartan-IIE, and Spartan XL FPGAs during power-up or reset. It operates in Master Serial mode, using dedicated pins (CLK, DATA, CE, RESET/OE) to synchronize with the FPGA's CCLK and DIN signals. The AT17N002-10SC eliminates the need for external controllers by enabling autonomous FPGA configuration directly from nonvolatile memory.

Is the AT17N002-10SC pin-compatible with Xilinx XC17S200A PROMs?

Yes, the AT17N002-10SC is explicitly pin-compatible with Xilinx XC17SXXXA and XC17SXXXXL PROMs, including the XC17S200A. Both devices use the same 20-lead SOIC footprint and share identical pin functions (e.g., DATA, CLK, CE, RESET/OE, VCC, GND). This allows direct substitution in existing Spartan-II/E/XL designs without PCB modifications, as confirmed in Atmel's datasheet section "Pin Compatible with Xilinx® XC17SXXXA and XC17SXXXXL PROMs".

What is the maximum clock frequency supported by the AT17N002-10SC?

The AT17N002-10SC 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), as specified in the AC Characteristics table of the datasheet. This timing enables reliable bitstream delivery to Spartan-II/E/XL FPGAs during Master Serial configuration, with TCAC (CLK to Data Delay) of 55–60 ns ensuring setup/hold compliance at rated speeds.

Can the AT17N002-10SC be reprogrammed in-system?

Yes, the AT17N002-10SC supports Two-Wire Serial In-System Programming (ISP) by pulling the VCC(SER_EN) pin low. In this mode, the device accepts programming commands via the DATA and CLK pins without requiring external high-voltage supplies-the internal charge pump generates necessary programming voltages. This capability allows field updates of FPGA configuration bitstreams without device removal, as detailed in the "Programming Mode" section of the datasheet.

What is the data retention specification for the AT17N002-10SC?

The AT17N002-10SC guarantees 20 years of data retention at 85°C, as stated in the "High-reliability" feature list and confirmed in the DC Characteristics table. This specification applies under standard operating conditions with VCC = 3.3V ±10% and ensures long-term integrity of stored FPGA configuration data in thermally demanding environments such as industrial enclosures or telecom base stations.