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Microchip Technology AT17LV040A-10BJI
- Part No.:
- AT17LV040A-10BJI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AT17LV040A-10BJI.pdf
- Description:
- IC SRL CONFG EEPROM 4M LV 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,364
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Product details
Overview
AT17LV040A-10BJI from Atmel is a 4-Mbit (4,194,304 x 1-bit) FPGA configuration EEPROM designed for serial loading of SRAM-based FPGAs including Altera FLEX®/APEX™, Xilinx Spartan®/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 AT17LV040A-10BJI datasheet, AT17LV040A-10BJI pinout, AT17LV040A-10BJI application, or AT17LV040A-10BJI equivalent, this device serves as a high-reliability, low-power serial configurator with 100,000 write cycles, 90-year data retention at 85°C, and compatibility across multiple FPGA families and voltage domains.
Technical Context
The AT17LV040A-10BJI implements a serial-access configuration memory architecture synchronized to an external DCLK signal, where rising edges increment an internal address counter and drive sequential bits onto the DATA line. Its RESET/OE pin combines active-low reset and active-high output enable functions, with polarity programmable during programming to match FPGA requirements.
It supports daisy-chain cascading via nCASC/nCS handshaking, enabling seamless expansion beyond single-device capacity. The SER_EN pin controls mode selection: tied high for FPGA master serial loading, pulled low for 2-wire ISP programming - with all logic levels and timing compliant to industrial-grade AC specifications at both 3.3V and 5V supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 × 1-bit (4 Mbit) - sufficient to configure large SRAM FPGAs such as Xilinx Virtex or Altera APEX devices |
| Supply Voltage | 3.3V ±10% or 5.0V ±10% (industrial range) - dual-voltage support enables interoperability with mixed-voltage FPGA systems |
| Write Endurance | 100,000 write cycles - ensures long-term reprogrammability during development and field updates |
| Data Retention | 90 years at 85°C (industrial grade) - guarantees configuration integrity over full product lifecycle in harsh environments |
| Max Clock Frequency | 10 MHz (3.3V industrial), 12.5 MHz (5V commercial) - sets upper bound on configuration speed for time-critical power-up sequences |
| Standby Current | 150 µA (3.3V industrial), 350 µA (5V industrial) - enables ultra-low-power hold states in battery-backed or energy-sensitive systems |
| Operating Temperature | -40°C to +85°C - qualified for industrial embedded applications without derating |
Pinout & Package
AT17LV040A-10BJI is supplied in a 32-lead TQFP (Thin Quad Flat Package) with 7 mm × 7 mm body size, 1.0 mm thickness, and 0.8 mm lead pitch - compatible with standard surface-mount assembly processes and PCB layout rules for fine-pitch QFPs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DATA | Bi-directional serial I/O | Three-state open-collector output during configuration; used as bidirectional pin during 2-wire ISP programming |
| DCLK | Serial clock input/output | Rising edge increments address counter; driven low by device when not actively transferring data |
| RESET/OE | Reset & output enable control | Active-low reset resets address counter; active-high OE enables DATA output - polarity programmable per FPGA requirement |
| nCS | Chip select input | Active-low enables counter and DATA driver; determines master/slave role in cascaded chains based on power-up state |
| nCASC | Cascade select output | Active-low signal indicating end-of-data; used to trigger next device in daisy-chain configuration |
| SER_EN | Serial programming enable | High = normal FPGA loading mode; Low = enters 2-wire ISP programming mode - must be tied to VCC for non-ISP use |
| VCC | Power supply | Accepts 3.3V ±10% or 5.0V ±10%; internal charge pump generates programming voltages - no external super-VDD required |
| GND | Ground reference | Requires 0.2 µF decoupling capacitor between VCC and GND for stable operation during high-speed serial transfers |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | Enables field firmware updates via 2-wire interface without removing device from PCB - critical for post-deployment FPGA reconfiguration |
| Cascadable read-back | Allows chaining multiple AT17LV040A-10BJI units to support >4-Mbit configuration images - eliminates need for custom memory controllers |
| Programmable reset polarity | User-configurable RESET/OE behavior ensures direct compatibility with diverse FPGA reset architectures (e.g., Altera vs. Xilinx) |
| Emulation of AT24CXXX EEPROMs | Provides drop-in replacement path for legacy serial EEPROM designs - simplifies migration to FPGA-centric platforms |
| Low-power standby mode | Consumes ≤150 µA at 3.3V industrial - reduces system-level quiescent power in always-on or battery-operated FPGA systems |
Applications
| Industrial PLC Configuration | Telecom Baseband FPGA Loading |
|---|---|
Use Scenario: Reconfiguring Xilinx Virtex FPGAs in programmable logic controllers deployed in factory automation environments with wide temperature swings. IC Role / Device Role / Timing Role: Serial configuration memory providing deterministic, power-on self-load of FPGA bitstreams without external controller intervention. Use Value: Eliminates boot ROM and microcontroller dependency - reduces BOM count and startup latency while ensuring 90-year data retention at 85°C. | Use Scenario: Loading configuration data into Altera APEX FPGAs used in wireless base station digital front-ends requiring rapid reconfiguration during protocol handovers. IC Role / Device Role / Timing Role: Master serial configurator synchronized to FPGA's DCLK, delivering bitstream at up to 10 MHz under industrial voltage conditions. Use Value: Enables sub-100ms FPGA reconfiguration cycles using cascaded AT17LV040A-10BJI units - meets 3GPP-defined handover timing constraints. |
| Aerospace Avionics Boot Memory | Medical Imaging FPGA Initialization |
Use Scenario: Storing radiation-tolerant configuration images for SRAM FPGAs in satellite payload subsystems operating continuously in extended thermal cycles. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with programmable reset polarity to align with flight computer's cold-start sequencing logic. Use Value: Guarantees reliable first-power configuration after orbital eclipse periods - validated for 100,000 write cycles and 90-year retention at 85°C. | Use Scenario: Initializing high-speed image processing FPGAs in MRI and CT scanner subsystems where deterministic boot timing and EMI resilience are mandatory. IC Role / Device Role / Timing Role: Low-noise serial configurator with 0.4V VOL and 2.4V VOH (3.3V), meeting medical EMC immunity standards during power-up transients. Use Value: Prevents configuration corruption from switching noise - verified with 2000V HBM ESD rating and robust DC/AC timing margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV002A-10QI | 2-Mbit density, same 32-lead TQFP package, identical pinout and AC/DC specs - half the capacity of AT17LV040A-10BJI | Suitable only for smaller FPGAs (e.g., Xilinx Spartan-3 or Altera Cyclone); insufficient for Virtex/APEX full configuration | Select when target FPGA bitstream fits within 2 Mbit and cost optimization is prioritized over future scalability |
| Xilinx XC18V04 | 4-Mbit density, 32-pin TQFP, but requires 3.3V-only supply and lacks programmable reset polarity or cascading nCASC output | Limited to Xilinx-only ecosystems; no native support for Altera or Lucent ORCA FPGAs without external glue logic | Choose only in pure-Xilinx designs where vendor lock-in is acceptable and simplified timing analysis is needed |
Compared with AT17LV002A-10QI, AT17LV040A-10BJI doubles configuration capacity for complex FPGAs while retaining full pin and functional compatibility; versus XC18V04, it adds cross-vendor FPGA support, programmable reset, and hardware cascading - reducing system-level design effort and increasing field upgrade flexibility.
Availability
AT17LV040A-10BJI is available at Aetrix Electronics and suitable for industrial PLCs, telecom baseband units, aerospace avionics, medical imaging systems, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT17LV040A-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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic solutions - known for high-reliability, industrial-grade configurable devices.
The AT17LV series is Atmel's dedicated FPGA configuration EEPROM product line, engineered specifically to replace parallel PROMs and simplify serial bitstream loading for SRAM-based FPGAs across multi-vendor platforms.
FAQ
What is the memory organization of the AT17LV040A-10BJI?
The AT17LV040A-10BJI provides 4,194,304 × 1-bit serial EEPROM memory - equivalent to 4 Mbit total capacity. This organization delivers a single-bit-wide serial stream optimized for synchronous loading into SRAM-based FPGAs. The device uses an internal address counter that increments on each DCLK rising edge, eliminating the need for external addressing logic during configuration.
Does the AT17LV040A-10BJI support both 3.3V and 5V operation?
Yes, the AT17LV040A-10BJI supports dual-voltage operation: 3.3V ±10% and 5.0V ±10% (industrial grade). Its DC and AC characteristics are fully specified across both rails, enabling direct integration into mixed-voltage FPGA systems without level-shifting circuitry. The device internally generates programming voltages - no external super-VDD is required.
How does cascading work with the AT17LV040A-10BJI in multi-FPGA systems?
The AT17LV040A-10BJI uses its nCASC output to signal end-of-data to the next device in a daisy chain. When its internal counter reaches maximum value, nCASC goes low, enabling the nCS input of the subsequent AT17LV040A-10BJI unit. This hardware handshaking allows seamless expansion beyond 4 Mbit without external controllers - verified in AC timing tables for cascaded operation.
Is the AT17LV040A-10BJI pin-compatible with other AT17LV family members?
Yes, the AT17LV040A-10BJI shares identical pinout and package (32-lead TQFP) with AT17LV010A and AT17LV002A in the same density tier. All AT17LVx02A/010A/040A variants use the same 32A footprint and signal mapping - enabling drop-in capacity upgrades on existing PCBs without layout changes.
What programming interfaces does the AT17LV040A-10BJI support?
The AT17LV040A-10BJI supports two programming modes: standard 2-wire serial ISP (via SER_EN low) using industry-standard programmers, and parallel programming using Atmel's ATDH2200E Programming Kit. It does not support JTAG programming - unlike some competing configuration PROMs, its ISP relies solely on the 2-wire bus with DCLK and DATA lines.
AT17LV040A-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)
AT17LV040A-10BJI FAQ
1.How can I place an order for AT17LV040A-10BJI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17LV040A-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 AT17LV040A-10BJI reliable?
The price and inventory of AT17LV040A-10BJI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17LV040A-10BJI is usually 5 days.
3.What payment methods are accepted for AT17LV040A-10BJI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17LV040A-10BJI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17LV040A-10BJI?
AT17LV040A-10BJI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17LV040A-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 AT17LV040A-10BJI?
For technical support, including AT17LV040A-10BJI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17LV040A-10BJI requirements.
6.How does Aetrix verify that AT17LV040A-10BJI is sourced from the original manufacturer or authorized distributors?
All AT17LV040A-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 AT17LV040A-10BJI meets industry standards.
7.What is the process for return or replacement of AT17LV040A-10BJI?
All AT17LV040A-10BJI units undergo pre-shipment inspection (PSI). If there is an issue with AT17LV040A-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 AT17LV040A-10BJI part is unused and in its original packaging.
Return procedure for AT17LV040A-10BJI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17LV040A-10BJI Tags
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Microchip Technology
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EPCQ4ASI8N
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AT17LV256-10PU
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AT17LV256-10NU
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EPCQ16ASI8N
Intel
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AT17LV010-10PU
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EPCQ32ASI8N
Intel
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EPCQ64ASI16N
Intel
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EPCQ128ASI16N
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AT17LV512A-10JU
Microchip Technology
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AT17LV512-10JU
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AT17LV010-10JU
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