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Microchip Technology AT17LV040-10BJI
- Part No.:
- AT17LV040-10BJI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AT17LV040-10BJI.pdf
- Description:
- IC EEPROM SRL CONFG 4M LV 44PLCC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT17LV040-10BJI from Microchip Technology (formerly Atmel) is a 4-Mbit FPGA configuration EEPROM designed for serial loading of SRAM-based FPGAs including Xilinx XC3000/XC4000/XC5200/Spartan/Virtex, Altera FLEX/APEX, and ORCA devices. It supports dual-voltage operation (3.3V ±10% or 5.0V ±10%), offers in-system programmability via two-wire bus, and features cascading capability through CEO output. Its industrial-grade rating (–40°C to +85°C) and 90-year data retention at 85°C make it suitable for embedded control and reconfigurable logic systems.
For engineers reviewing the AT17LV040-10BJI datasheet, AT17LV040-10BJI pinout, AT17LV040-10BJI application, or AT17LV040-10BJI equivalent, key selection criteria include its 4-Mbit density, 44-lead PLCC package with CEO support, industrial temperature range, cascading read-back capability, and compatibility with industry-standard FPGA master serial mode interfaces.
Technical Context
The AT17LV040-10BJI implements a serial-access configuration memory architecture that directly interfaces with FPGA CCLK and DIN pins without external controllers. Its address counter advances on CLK edges during CE and RESET/OE assertion, enabling deterministic bitstream delivery aligned to FPGA clocking requirements.
It supports programmable reset polarity (RESET/OE active-low or OE active-high), write protection via WP1/WP2 inputs (enabled only during ISP), and low-power standby mode (<350 µA at 5V industrial). The CEO output enables daisy-chained configurations by asserting CE of the next device upon completion of its own data stream.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4,194,304 × 1-bit (4 Mbit) - sufficient for large SRAM-based FPGAs such as Xilinx Virtex or Altera APEX families |
| Supply voltage | 3.3V ±10% or 5.0V ±10% - dual-voltage support simplifies integration into mixed-voltage system designs |
| Operating temperature | –40°C to +85°C - qualified for industrial environments requiring extended thermal reliability |
| Data retention | 90 years at 85°C - ensures long-term configuration integrity in unattended or sealed systems |
| Write endurance | 100,000 cycles - supports field firmware updates and reconfiguration during product lifecycle |
| Max clock frequency | 15 MHz at 3.3V, 15 MHz at 5V (industrial) - enables fast FPGA startup times under worst-case conditions |
| Standby current | 350 µA at 5V industrial - minimizes quiescent power in always-on or battery-backed applications |
Pinout & Package
AT17LV040-10BJI is packaged in a 44-lead PLCC (Plastic Leaded Chip Carrier) with 1.27 mm lead pitch, 17.4 mm × 17.4 mm body, and 3.05 mm height. This RoHS-compliant, green package provides mechanical robustness and thermal performance (θJA = 50°C/W) suited for industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–10, 12–13, 15–16, 18–20, 22–23, 25–28, 30–33, 35–39, 41–43 | NC | No-connect pins - must remain unconnected per design; no internal function or pull-up/down |
| 5 | DATA | Bi-directional open-collector I/O - delivers configuration bitstream to FPGA DIN; used for programming during SER_EN low |
| 11 | CLK | Input clock - synchronizes address counter advancement and bitstream output timing to FPGA CCLK |
| 14 | RESET/OE | Combined input - resets address counter when low; enables DATA output when high (with CE low) |
| 17 | CE | Chip Enable (active low) - gates CLK-driven addressing and DATA output; controls standby entry when high |
| 19 | GND | Ground reference - requires 0.2 µF decoupling capacitor near VCC pin for noise immunity |
| 21 | CEO | Chip Enable Output (active low) - signals end-of-data to cascade next EEPROM in chain; not present on smaller variants |
| 24 | VCC | Power supply - accepts 3.3V or 5V with specified tolerances; decoupling mandatory |
| 29 | READY | Open-collector reset indicator - driven low during power-on reset; released after internal initialization completes |
| 34 | SER_EN | Serial enable - must be tied high for FPGA configuration; pulled low to enter two-wire ISP programming mode |
| 40 | WP1 | Write protect 1 - disables programming of upper memory blocks when high; internal pull-down defaults to disabled |
| 44 | WP2 | Write protect 2 - additional block-level protection during ISP; internal pull-down defaults to disabled |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | Two-wire serial interface (SER_EN low) enables field updates without removing the device from the board |
| Cascadable read-back | CEO output allows daisy-chaining multiple AT17LV040-10BJI units to extend total configuration memory beyond 4 Mbit |
| Programmable reset polarity | User-configurable RESET/OE behavior supports both active-low reset and active-high output-enable logic in FPGA designs |
| Low-power standby mode | 350 µA max ICCS at 5V/85°C reduces system power budget during idle or sleep states |
| High-reliability EEPROM process | 100,000 write cycles and 90-year data retention at 85°C ensure long-term field deployment stability |
Applications
| Industrial PLC Configuration | Xilinx Virtex Reconfiguration System |
|---|---|
Use Scenario: Programmable logic controller reboots after power loss and reloads FPGA configuration from nonvolatile memory. IC Role / Device Role / Timing Role: Serial configuration EEPROM delivering bitstream to Virtex FPGA's master serial port on power-up. Use Value: Ensures deterministic, repeatable FPGA initialization without host processor involvement; 90-year data retention prevents corruption in unattended deployments. | Use Scenario: Field-upgradable FPGA design where new logic images are loaded over RS-485 and stored in EEPROM before reboot. IC Role / Device Role / Timing Role: Nonvolatile storage for multiple Virtex configuration bitstreams, selected via FPGA-controlled CE sequencing. Use Value: Enables secure, offline FPGA reprogramming using the AT17LV040-10BJI's two-wire ISP mode and WP1/WP2 protection. |
| Altera APEX-Based Motor Drive | Cascaded Multi-FPGA Test Platform |
Use Scenario: High-reliability motor control system uses APEX FPGA for real-time PWM generation and safety monitoring. IC Role / Device Role / Timing Role: Configuration memory providing deterministic startup timing aligned to APEX's master serial protocol. Use Value: Dual-voltage support (3.3V/5V) allows direct integration with legacy 5V motor drive power rails; industrial temp rating ensures operation in hot enclosures. | Use Scenario: Automated test equipment uses four FPGAs in sequence, each requiring unique configuration data. IC Role / Device Role / Timing Role: First AT17LV040-10BJI drives initial FPGA and asserts CEO to enable second unit's CE, forming a synchronous daisy chain. Use Value: Eliminates need for external sequencer logic; CEO-driven cascading guarantees precise inter-device handoff with <40 ns delay (TOOE). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Xilinx XC18V04 | 4-Mbit density, 3.3V-only supply, 44-pin TQFP package, no CEO output, no WP1/WP2 | Lacks cascading capability and dual-voltage support; limited to Xilinx-specific ecosystems | Select when using only Xilinx FPGAs and requiring smallest footprint (TQFP vs PLCC); avoid if daisy-chaining or 5V compatibility needed. |
| Microchip (Atmel) AT17LV002-10BJI | 2-Mbit density, identical 44-lead PLCC package, same CEO/READY/SER_EN pinout, lower standby current (200 µA @5V) | Half the memory capacity; suitable only for mid-size FPGAs like XC4000 or FLEX 10K | Choose for cost-sensitive or space-constrained designs where 2 Mbit suffices; pin-compatible upgrade path to AT17LV040-10BJI exists if future expansion required. |
Compared with XC18V04 and AT17LV002-10BJI, the AT17LV040-10BJI uniquely combines 4-Mbit density, industrial temperature range, dual-voltage operation, and hardware-supported cascading-making it the only option among the three qualified for high-reliability, multi-FPGA, mixed-voltage industrial systems.
Availability
AT17LV040-10BJI is available at Aetrix Electronics and suitable for industrial automation, FPGA-based test equipment, and reconfigurable embedded controllers requiring stable component supply across extended lifecycles.
Supply support for AT17LV040-10BJI 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 maintains full support for legacy Atmel FPGA configuration products, including manufacturing, documentation, and technical assistance.
The AT17LV series was designed specifically for reliable, low-maintenance FPGA configuration in industrial and telecom infrastructure-emphasizing long-term data retention, in-system programmability, and seamless integration with major FPGA vendors' master serial protocols.
FAQ
What is the maximum clock frequency supported by the AT17LV040-10BJI during FPGA configuration?
The AT17LV040-10BJI supports up to 15 MHz at both 3.3V and 5V supply voltages under industrial temperature conditions (–40°C to +85°C). This timing is validated per AC Characteristics Table 17 and Table 19, ensuring reliable bitstream delivery to FPGAs such as Xilinx Virtex or Altera APEX without setup/hold violations. The AT17LV040-10BJI achieves this using optimized internal counters and low-skew output drivers.
Does the AT17LV040-10BJI support cascading with other AT17LV series devices?
Yes, the AT17LV040-10BJI supports hardware cascading via its CEO (Chip Enable Output) pin (Pin 21), which goes low upon completion of its internal address counter. This signal can directly drive the CE input of a downstream AT17LV040-10BJI or compatible device (e.g., AT17LV002-10BJI). Cascading is explicitly documented in Section 7 of the datasheet and verified for 44-lead PLCC variants like the AT17LV040-10BJI.
What package type and dimensions does the AT17LV040-10BJI use?
The AT17LV040-10BJI uses a 44-lead PLCC (Plastic Leaded Chip Carrier) package designated as 44J, measuring 17.4 mm × 17.4 mm × 3.05 mm with 1.27 mm lead pitch. Its θJA thermal resistance is 50°C/W, and it complies with JEDEC MS-018 Variation AC. This package is distinct from the 44-lead TQFP (44A) used by AT17LV040-10TQI and is not pin-compatible with SOIC or LAP variants.
Can the AT17LV040-10BJI be programmed in-circuit without removal from the PCB?
Yes, the AT17LV040-10BJI supports in-system programming (ISP) via its two-wire serial interface when SER_EN (Pin 34) is pulled low. Programming occurs at the same VCC supply voltage used for configuration (3.3V or 5V), with internal charge pumps generating required programming voltages. This eliminates the need for socketed programming or device removal, and is fully supported by Atmel's ATDH2225 ISP Cable and third-party programmers.
What is the data retention specification for the AT17LV040-10BJI at industrial temperature?
The AT17LV040-10BJI guarantees 90 years of data retention at +85°C, as specified in Section 1 under "High-reliability" and confirmed in the DC Characteristics tables. This applies to the industrial-grade variant (denoted by 'I' in the part number suffix) and is measured under accelerated life testing per JEDEC standards. The AT17LV040-10BJI achieves this using a proven CMOS EEPROM process with oxide-nitride-oxide (ONO) floating gate technology.
AT17LV040-10BJI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- Serial EEPROM
- Memory Size:
- 4Mb
- Voltage - Supply:
- 3V ~ 3.6V, 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.6x16.6)
AT17LV040-10BJI FAQ
1.How can I place an order for AT17LV040-10BJI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17LV040-10BJI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT17LV040-10BJI reliable?
The price and inventory of AT17LV040-10BJI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17LV040-10BJI is usually 5 days.
3.What payment methods are accepted for AT17LV040-10BJI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17LV040-10BJI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17LV040-10BJI?
AT17LV040-10BJI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17LV040-10BJI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT17LV040-10BJI?
For technical support, including AT17LV040-10BJI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17LV040-10BJI requirements.
6.How does Aetrix verify that AT17LV040-10BJI is sourced from the original manufacturer or authorized distributors?
All AT17LV040-10BJI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT17LV040-10BJI meets industry standards.
7.What is the process for return or replacement of AT17LV040-10BJI?
All AT17LV040-10BJI units undergo pre-shipment inspection (PSI). If there is an issue with AT17LV040-10BJI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT17LV040-10BJI part is unused and in its original packaging.
Return procedure for AT17LV040-10BJI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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