Microchip Technology AT17LV002-10BJC

Overview

AT17LV002-10BJC from Microchip Technology (formerly Atmel) is a 2-Mbit FPGA configuration EEPROM designed to store and serially load bitstream programs into SRAM-based FPGAs. It operates at 3.3V ±10%, supports in-system programming via 2-wire bus, features programmable reset polarity, and delivers 15 MHz max clock frequency in non-cascaded mode. It is used in Xilinx Virtex™, Spartan®, and Altera APEX™ FPGA systems during power-up initialization.

For engineers reviewing the AT17LV002-10BJC datasheet, AT17LV002-10BJC pinout, AT17LV002-10BJC application, or AT17LV002-10BJC equivalent, key selection criteria include 3.3V operation, 44-lead PLCC package compatibility, cascading CEO support, READY pin availability, and EEPROM emulation of AT24CXXX series for legacy system integration.

Technical Context

The AT17LV002-10BJC implements a serial-access EEPROM architecture with an internal address counter, bit counter, and tri-state DATA output controlled by CE, RESET/OE, and SER_EN. Its control logic directly interfaces with FPGA master serial mode signals-CLK drives the counter, CEO enables daisy-chained devices, and READY provides open-collector power-on reset indication.

It supports two operational modes: FPGA configuration loading (SER_EN = High) and 2-wire in-system programming (SER_EN = Low). The device uses on-chip charge pumps for programming without external high-voltage supplies, and its reset polarity is user-programmable via four EEPROM bytes to match FPGA INIT/RESET requirements.

Key Specifications

Pinout & Package

AT17LV002-10BJC is housed in a 44-lead Plastic Leaded Chip Carrier (PLCC) package (44J), measuring 17.4 mm × 17.4 mm × 4.57 mm, with 1.27 mm lead pitch and JEDEC MS-018 AC compliance. Thermal resistance θJA = 50°C/W (airflow = 0 ft/min).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT17LV002-10TQC and AT17LV002-10JC, the AT17LV002-10BJC uniquely combines full feature set (READY, WP1, CEO, SER_EN) with industrial-grade 44-lead PLCC packaging - making it optimal for field-deployed systems requiring robustness, serviceability, and legacy board compatibility.

Availability

AT17LV002-10BJC is available at Aetrix Electronics and suitable for industrial PLCs, telecom baseband processors, FPGA development platforms, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AT17LV002-10BJC 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

Microchip Technology acquired Atmel in 2016 and continues to manufacture, support, and qualify the AT17 series FPGA configuration EEPROMs under its broad memory and configurable logic portfolio.

The AT17LV002-10BJC belongs to the AT17 family of serial configuration memories, engineered specifically to replace obsolete UV-erasable PROMs and simplify FPGA boot architecture in industrial, aerospace, and communications systems.

FAQ

What is the operating voltage range for the AT17LV002-10BJC?

The AT17LV002-10BJC operates from 3.0 V to 3.6 V, compliant with 3.3V ±10% supply specifications. This range ensures compatibility with modern low-voltage FPGAs and eliminates the need for level translation. Operation outside this window may cause configuration failure or data corruption. The device draws ≤5 mA in active mode and only 200 µA in standby, supporting energy-efficient system design. All DC and AC parameters in the datasheet are validated across this voltage band.

How does the READY pin function on the AT17LV002-10BJC?

The READY pin on the AT17LV002-10BJC is an open-collector output that is actively driven Low during power-on reset and released (high-impedance) once internal circuitry confirms stable VCC. It requires an external 4.7 kΩ pull-up resistor. This signal can be connected to an FPGA's PROGRAM or INIT pin to delay configuration until power is fully regulated - preventing metastability or partial loading. Unlike simpler reset supervisors, READY is integrated and calibrated to the device's internal power monitor.

Can the AT17LV002-10BJC be used to configure Xilinx Spartan® FPGAs?

Yes, the AT17LV002-10BJC is explicitly listed as compatible with Xilinx Spartan® FPGAs in its official documentation. It connects directly to Spartan's master serial interface: CLK to CCLK, DATA to DIN, CE to the FPGA's CE input (or CON/DONE in some topologies), and RESET/OE to INIT. The device's 15 MHz max clock rate meets Spartan-3 and Spartan-6 timing requirements, and its 2-Mbit capacity supports most mid-density Spartan configurations without segmentation.

What is the purpose of the SER_EN pin on the AT17LV002-10BJC?

The SER_EN pin on the AT17LV002-10BJC selects between two operational modes: when held High (typically tied to VCC), it enables standard FPGA configuration loading; when pulled Low, it activates 2-wire in-system programming mode for field updates. SER_EN is not used during normal boot - its state determines whether the device responds to FPGA clock/data signals or accepts ISP commands. This dual-mode capability eliminates the need for socketed programming fixtures in production and maintenance workflows.

Is the AT17LV002-10BJC pin-compatible with the AT17C002-10BJC?

Yes, the AT17LV002-10BJC is pin-compatible with the AT17C002-10BJC - both use the identical 44-lead PLCC (44J) package and share identical pin functions, numbering, and layout. However, they differ electrically: AT17C002-10BJC operates at 5V (±5%), while AT17LV002-10BJC operates at 3.3V (±10%). Direct substitution requires verifying system voltage compliance and adjusting decoupling if VCC rail changes; timing parameters also differ slightly (e.g., FMAX drops from 15 MHz to 12.5 MHz in cascaded mode for LV version).