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Microchip Technology AT17LV040-10BJC
- Part No.:
- AT17LV040-10BJC
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AT17LV040-10BJC.pdf
- Description:
- IC SRL CONFG EEPROM 4M LV 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,865
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Product details
Overview
AT17LV040-10BJC from Microchip Technology (formerly Atmel) is a 4-Mbit serial FPGA configuration EEPROM designed to store and load bitstreams for SRAM-based FPGAs. It supports both 3.3V and 5.0V operation, features in-system programmability via two-wire bus, programmable reset polarity, and cascading capability via CEO output. It is used in industrial embedded systems requiring reliable, low-power, long-retention nonvolatile configuration storage.
For engineers reviewing the AT17LV040-10BJC datasheet, AT17LV040-10BJC pinout, AT17LV040-10BJC application, or AT17LV040-10BJC equivalent, key selection criteria include 4-Mbit density, 44-lead PLCC package compatibility, industrial temperature range (–40°C to +85°C), CEO-enabled daisy-chaining, and dual-voltage support for legacy and modern FPGA platforms.
Technical Context
The AT17LV040-10BJC implements a serial master-configuration interface synchronized to an external FPGA CCLK signal. Its internal address counter auto-resets on power-up and RESET/OE assertion, enabling seamless FPGA boot without external controllers. The device uses CMOS EEPROM process with 100,000 write cycles and 90-year data retention at 85°C.
It supports two operational modes: FPGA loading mode (SER_EN = High) and two-wire ISP programming mode (SER_EN = Low). In loading mode, CE, RESET/OE, and CLK directly interface with FPGA control signals; in ISP mode, A2 and SER_EN enable device selection and serial programming using internal charge pumps-no external high-voltage supply required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4,194,304 × 1-bit (4 Mbit) - sufficient for large Xilinx Virtex or Altera APEX FPGA configurations |
| Supply voltage | 3.0–3.6 V or 4.5–5.5 V - supports mixed-voltage system integration and legacy 5V FPGA designs |
| Operating temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Standby current | 350 µA max (industrial, 5V) - enables low-power system sleep states without configuration loss |
| Data retention | 90 years at 85°C - ensures long-term reliability in unattended or sealed deployments |
| Write endurance | 100,000 cycles - supports field firmware updates and reconfiguration during product lifecycle |
| Max clock frequency | 15 MHz (3.3V commercial), 12.5 MHz (5V industrial) - matches timing budgets of mainstream SRAM FPGAs |
Pinout & Package
AT17LV040-10BJC is housed in a 44-lead Plastic Leaded Chip Carrier (PLCC) package (JEDEC MS-018, Variation AC), measuring 17.4 mm × 17.4 mm × 4.57 mm, with J-bend leads and pin 1 identifier notch. Thermal resistance: θJA = 50°C/W, θJC = 15°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–10, 12–13, 15–16, 18–20, 22–23, 25–29, 31–34, 36–40, 42–43 | NC | No-connect pins - reserved for future use or package compatibility; must be left floating or grounded per layout guidelines |
| 5 | DATA | Three-state bidirectional I/O - drives FPGA DIN during configuration; open-collector for ISP programming |
| 11 | CLK | Asynchronous clock input - increments internal address/bit counter; driven by FPGA CCLK |
| 14 | RESET/OE | Programmable active-Low RESET / active-High OE - controls address counter reset and DATA driver enable/disable |
| 17 | CE | Active-Low chip enable - enables read operation and disables standby mode; cascaded via CEO |
| 21 | GND | Ground reference - requires local 0.2 µF decoupling capacitor to VCC |
| 24 | CEO | Active-Low chip enable output - signals end-of-data to next device in daisy chain; essential for multi-FPGA systems |
| 27 | A2 | Device select input - enables serial programming when SER_EN = Low; internal pull-down |
| 29 | READY | Open-collector reset indicator - driven Low during power-on reset; released when internal initialization completes |
| 35 | SER_EN | Serial enable - must be tied to VCC for FPGA loading; pulled Low to enter two-wire ISP mode |
| 38 | VCC | Power supply - accepts 3.3V ±10% or 5.0V ±10%; requires 0.2 µF decoupling to GND |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Enables field reprogramming via two-wire bus without removing device - eliminates need for socketed programmers in production or service |
| Cascadable CEO output | Allows daisy-chaining multiple AT17LV040-10BJC units to support FPGAs requiring >4 Mbit configuration memory or multi-device systems |
| Programmable reset polarity | User-configurable RESET/OE logic polarity via EEPROM bytes - eliminates hardware-level level-shifting or inverter logic for diverse FPGA families |
| Dual-voltage operation | Single part supports both 3.3V and 5.0V FPGA platforms - reduces BOM count and simplifies design reuse across product generations |
| Low-power standby mode | 350 µA max ICCS at 5V/85°C - minimizes system quiescent power while preserving configuration integrity |
Applications
| Industrial PLC Configuration | Xilinx Virtex Boot Memory |
|---|---|
Use Scenario: Configuring Xilinx Virtex-4 or Virtex-5 FPGAs in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Serial master configuration EEPROM providing bitstream on power-up; synchronized to FPGA CCLK with CEO-driven daisy-chain for redundant config storage. Use Value: Ensures deterministic FPGA startup within <100 ms; 90-year data retention prevents field failures due to configuration corruption in unattended operation. | Use Scenario: Storing full configuration bitstreams for Xilinx Virtex-4 FX60 and larger devices in telecom baseband processing boards. IC Role / Device Role / Timing Role: Primary configuration memory interfacing directly to FPGA CCLK and DIN pins; operates at 12.5 MHz under 5V industrial conditions. Use Value: Eliminates external microcontroller dependency for boot; 4-Mbit capacity accommodates complex partial-reconfigurable designs without external memory expansion. |
| Altera APEX FPGA System | Multi-FPGA Test Equipment |
Use Scenario: Loading configuration data into Altera APEX 20K series FPGAs used in high-speed digital test instrumentation. IC Role / Device Role / Timing Role: Master serial configurator with programmable RESET/OE polarity to match APEX's active-low reset requirement; supports 5V operation. Use Value: Enables plug-and-play FPGA replacement in field-serviceable modules; dual-voltage support allows reuse across legacy (5V) and newer (3.3V) instrument platforms. | Use Scenario: Coordinating configuration of four Xilinx Spartan-3 FPGAs in automated test equipment with shared clock domain. IC Role / Device Role / Timing Role: Cascaded AT17LV040-10BJC units (CEO→CE) delivering sequential bitstreams; READY pin synchronizes system reset release. Use Value: Reduces PCB footprint vs. discrete EEPROMs; single 44-PLCC footprint supports scalable configuration depth without redesigning layout for higher-density variants. |
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 serial PROM; supports only 3.3V operation; no CEO output; not ISP-capable | Limited to single-FPGA 3.3V systems; requires external programmer for initial programming | Select when cost-sensitive, single-device 3.3V designs prioritize simplicity over field update capability |
| Microchip AT17LV002-10BJC | 2-Mbit density; identical 44-PLCC package; same pinout and electrical specs except memory size | Suitable only for smaller FPGAs (e.g., Spartan-II, XC3000); insufficient for Virtex/APEX full bitstreams | Choose for cost-optimized designs where 2-Mbit capacity meets configuration requirements and footprint compatibility is critical |
Compared with XC18V04 and AT17LV002-10BJC, AT17LV040-10BJC uniquely delivers 4-Mbit density with industrial-grade 5V/3.3V dual-voltage support, in-system programmability, and CEO-based cascading - making it the only option among the three for robust, upgradable, multi-FPGA industrial systems.
Availability
AT17LV040-10BJC is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and test equipment requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AT17LV040-10BJC 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 maintains full support for the legacy AT17LV family, including documentation, programming tools, and long-term supply assurance.
The AT17LV series was originally developed by Atmel to provide cost-effective, easy-to-integrate serial configuration memory for SRAM-based FPGAs - targeting industrial, telecom, and embedded systems where reliability, low power, and field programmability are critical.
FAQ
What is the maximum clock frequency supported by AT17LV040-10BJC in industrial 5V operation?
The AT17LV040-10BJC supports a maximum clock frequency of 12.5 MHz when operated at 5.0V ±10% over the industrial temperature range (–40°C to +85°C). This timing is validated per AC Characteristics Table 20 and ensures reliable synchronization with FPGA CCLK inputs in demanding environments.
Does AT17LV040-10BJC support in-system programming (ISP), and what interface is required?
Yes, AT17LV040-10BJC supports in-system programming via a two-wire serial bus. ISP is enabled by pulling SER_EN low; A2 serves as device-select input, and standard I²C-compatible protocol is used. No external high-voltage supply is needed - internal charge pumps generate programming voltages from VCC alone.
Can AT17LV040-10BJC be used in a daisy-chain configuration with other AT17LV devices?
Yes, AT17LV040-10BJC supports daisy-chaining using its CEO (Chip Enable Output) pin. When the device reaches end-of-memory, CEO goes low to enable the CE input of the next AT17LV device in the chain. This feature is confirmed for AT17LV040-10BJC and compatible with AT17LV002, AT17LV010, and AT17LV512 in 44-lead packages.
What is the data retention specification for AT17LV040-10BJC at 85°C?
AT17LV040-10BJC guarantees 90 years of data retention at 85°C for industrial-grade operation. This value is specified in the "High-reliability" section of the datasheet and reflects accelerated life testing under worst-case thermal stress conditions.
Is the RESET/OE polarity programmable on AT17LV040-10BJC, and how is it configured?
Yes, the RESET/OE polarity is programmable on AT17LV040-10BJC. Users configure it by programming four specific EEPROM bytes using an industry-standard programmer or Atmel's ATDH2225 ISP Cable. The default setting is active-Low RESET, but it can be changed to active-High OE to match FPGA interface requirements.
AT17LV040-10BJC 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, 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.6x16.6)
AT17LV040-10BJC FAQ
1.How can I place an order for AT17LV040-10BJC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17LV040-10BJC 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 AT17LV040-10BJC reliable?
The price and inventory of AT17LV040-10BJC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17LV040-10BJC is usually 5 days.
3.What payment methods are accepted for AT17LV040-10BJC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17LV040-10BJC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17LV040-10BJC?
AT17LV040-10BJC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17LV040-10BJC 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 AT17LV040-10BJC?
For technical support, including AT17LV040-10BJC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17LV040-10BJC requirements.
6.How does Aetrix verify that AT17LV040-10BJC is sourced from the original manufacturer or authorized distributors?
All AT17LV040-10BJC 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 AT17LV040-10BJC meets industry standards.
7.What is the process for return or replacement of AT17LV040-10BJC?
All AT17LV040-10BJC units undergo pre-shipment inspection (PSI). If there is an issue with AT17LV040-10BJC, 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 AT17LV040-10BJC part is unused and in its original packaging.
Return procedure for AT17LV040-10BJC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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