Microchip Technology AT17LV002A-10JC

Overview

AT17LV002A-10JC from Atmel is a 2-Mbit (2,097,152 × 1-bit) serial EEPROM FPGA configuration memory designed for Altera FLEX® and APEX™ FPGAs, operating at 3.3V ±10% or 5.0V ±10%, featuring in-system programmability via 2-wire bus, programmable reset polarity, and cascading support for multi-device configurations in industrial temperature range (−40°C to +85°C).

For engineers reviewing the AT17LV002A-10JC datasheet, AT17LV002A-10JC pinout, AT17LV002A-10JC application, or AT17LV002A-10JC equivalent, this device serves as a drop-in replacement for Altera EPC2 in master serial FPGA configuration, with verified compatibility across Xilinx XC3000–Virtex®, Lucent ORCA®, and Motorola MPA1000 FPGAs - requiring attention to VCC voltage selection, nCASC daisy-chain timing, and SER_EN logic state during ISP.

Technical Context

The AT17LV002A-10JC implements a serial-access configuration controller that interfaces directly with SRAM-based FPGA control signals (nCS, RESET/OE, DCLK), eliminating need for external microcontrollers. Its internal oscillator drives DCLK during power-up, and address counter auto-resets on power-on or RESET/OE assertion.

It supports cascaded daisy-chain operation via nCASC output driving nCS of subsequent devices, enabling expansion beyond 2-Mbit capacity. The SER_EN pin selects between FPGA loading mode (SER_EN = High) and 2-wire ISP programming mode (SER_EN = Low), with internal charge-pump programming at nominal VCC only.

Key Specifications

Pinout & Package

AT17LV002A-10JC is available in 20-lead PLCC (package code 20J) and 32-lead TQFP (32A); this variant uses the 20J package with 1.27 mm lead pitch, JEDEC MS-018 compliant, body size 10.0 mm × 10.0 mm × 3.0 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Altera EPC2LC20 and Xilinx XC18V02, the AT17LV002A-10JC uniquely combines dual-voltage operation, cascading capability, and unified 2-wire ISP - making it the only option supporting mixed-vendor FPGA fleets with single-point field update capability.

Availability

AT17LV002A-10JC is available at Aetrix Electronics and suitable for industrial PLC configuration, telecom baseband FPGA boot, and defense radar signal processing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AT17LV002A-10JC 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 programmable logic solutions for industrial, automotive, and communications markets.

The AT17LV series was engineered specifically for FPGA configuration memory applications, emphasizing seamless integration with Altera, Xilinx, and Lucent FPGA families through pin- and protocol-compatible serial interfaces.

FAQ

What voltage options does the AT17LV002A-10JC support?

The AT17LV002A-10JC supports both 3.3V ±10% and 5.0V ±10% supply voltages, with industrial temperature qualification (−40°C to +85°C) across both rails. It automatically adapts internal timing and drive strength based on VCC level, eliminating need for external voltage translation when interfacing with mixed-voltage FPGA systems.

How does the AT17LV002A-10JC enable cascaded FPGA configuration?

The AT17LV002A-10JC uses its nCASC output to signal end-of-data to the next device in a daisy-chain: when its internal address counter reaches maximum value, nCASC goes low, enabling the nCS input of the subsequent AT17LV002A-10JC or compatible configurator. This allows seamless expansion beyond 2-Mbit capacity without external logic.

Can the AT17LV002A-10JC be programmed in-system?

Yes, the AT17LV002A-10JC supports in-system programming via its 2-wire serial interface. Bringing SER_EN low activates ISP mode, allowing reprogramming of configuration data using industry-standard programmers or Atmel's ATDH2225 ISP Cable - all at nominal VCC, with no external high-voltage supply required.

What is the purpose of the READY pin on the AT17LV002A-10JC?

The READY pin on the AT17LV002A-10JC is an open-collector output that is driven low during power-on reset and released (high-impedance) once VCC stabilizes. When pulled up with a 4.7 kΩ resistor, it provides a clean hardware reset signal to synchronize FPGA startup, preventing metastability during configuration initialization.

Is the AT17LV002A-10JC compatible with Xilinx Virtex FPGAs?

Yes, the AT17LV002A-10JC is explicitly listed as compatible with Xilinx XC3000™, XC4000™, XC5200™, Spartan®, and Virtex® FPGAs in its official documentation. It adheres to Xilinx master serial configuration protocol timing (e.g., TCAC ≤ 60 ns at 3.3V), and supports SER_EN-controlled ISP for field updates without disrupting Virtex operation.