Microchip Technology AT17LV010A-10JC

Overview

AT17LV010A-10JC from Atmel is a 1-Mbit (1,048,576 × 1-bit) FPGA configuration EEPROM designed for serial loading of SRAM-based FPGAs including Altera FLEX® and APEX™, Xilinx Spartan® and Virtex®, and Lucent ORCA® devices. It operates at 3.3V (±10%) or 5.0V (±10% industrial), supports in-system programming via 2-wire bus, and features programmable reset polarity and cascading capability for multi-device configurations.

For engineers reviewing the AT17LV010A-10JC datasheet, AT17LV010A-10JC pinout, AT17LV010A-10JC application, or AT17LV010A-10JC equivalent, key selection criteria include its 1-Mbit density, 32-lead TQFP/20-lead PLCC/8-lead PDIP package options, industrial temperature range (–40°C to +85°C), cascading nCASC support, and compatibility with legacy Atmel AT24CXXX serial EEPROM emulation.

Technical Context

The AT17LV010A-10JC implements a serial-access configuration memory architecture synchronized to DCLK, with internal address counter controlled by RESET/OE and nCS. Its DATA pin functions as a three-state open-collector output during FPGA loading and bidirectional I/O during ISP programming.

It integrates on-chip oscillator control, programmable reset polarity (RESET active Low / OE active High), write protection via WP1 input, and READY signal for power-on reset indication. Cascading is enabled through nCASC output driving nCS of subsequent devices in daisy-chain topologies.

Key Specifications

Pinout & Package

AT17LV010A-10JC is available in 32-lead TQFP (32A), 20-lead PLCC (20J), and 8-lead PDIP (8P3) packages. Pin compatibility is maintained across the AT17LV family, enabling layout reuse when scaling density.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT17LV010A-10JI, the AT17LV010A-10JC offers identical electrical behavior but in a smaller 32-lead TQFP package for space-constrained layouts; versus XC18V02, it delivers proven interoperability with multi-vendor FPGAs and built-in cascade signaling without external logic.

Availability

AT17LV010A-10JC is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and automotive electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AT17LV010A-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.

The AT17LV series was engineered specifically for FPGA configuration storage, emphasizing reliability, multi-vendor compatibility, and seamless integration into master-serial boot architectures.

FAQ

What is the primary function of the AT17LV010A-10JC in an FPGA-based system?

The AT17LV010A-10JC serves as a dedicated serial configuration EEPROM that stores and delivers bitstream data to SRAM-based FPGAs during power-up or reset. It interfaces directly with FPGA control signals (DCLK, nCS, RESET/OE) and requires no external controller, enabling autonomous FPGA initialization. Its 1-Mbit capacity supports medium-complexity devices like Altera FLEX 10K or Xilinx XC4000 families. The AT17LV010A-10JC is optimized for reliability and industrial operating conditions.

Which FPGA families are explicitly supported by the AT17LV010A-10JC?

The AT17LV010A-10JC is documented to support Altera FLEX® and APEX™, Xilinx XC3000™, XC4000™, XC5200™, Spartan®, and Virtex® FPGAs, as well as Lucent ORCA® and Motorola MPA1000 devices. Compatibility is achieved through standardized master-serial interface timing and pin mapping. The AT17LV010A-10JC also emulates Atmel AT24CXXX serial EEPROMs, enabling reuse of existing programming infrastructure across these platforms.

Does the AT17LV010A-10JC support in-system programming (ISP), and how is it enabled?

Yes, the AT17LV010A-10JC supports in-system programming via a 2-wire serial interface. ISP is enabled by pulling the SER_EN pin low, which activates the serial programming mode. During ISP, DATA and DCLK serve as bidirectional data and clock lines. The AT17LV010A-10JC generates internal programming voltages - no external high-voltage supply is needed. Programming occurs at standard VCC levels (3.3V or 5V), and WP1 provides hardware write protection during this process.

How does cascading work with the AT17LV010A-10JC, and what pins are involved?

Cascading is implemented using the nCASC output and nCS input. When the AT17LV010A-10JC completes data transmission, its nCASC pin drives low, signaling the next device in the chain. This low level is connected to the nCS input of the downstream AT17LV device, enabling its DATA output and address counter. The AT17LV010A-10JC's nCASC is active-low and electrically compatible with all AT17LV family members, allowing mixed-density chains (e.g., AT17LV512A followed by AT17LV010A-10JC). Reset synchronization across the chain is managed via shared RESET/OE.

What is the significance of the "-10JC" suffix in AT17LV010A-10JC?

The "-10JC" suffix denotes a specific ordering variant: "10" indicates speed grade (10 ns access time), "J" specifies the 20-lead PLCC package (20J), and "C" designates commercial temperature range (0°C to +70°C). However, per Atmel's ordering table, AT17LV010A-10JC is explicitly listed for commercial operation in 20J package - confirming its qualification for ambient environments up to 70°C. The AT17LV010A-10JC is distinct from industrial-grade variants like AT17LV010A-10JI and TQFP versions such as AT17LV010A-10QC.