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Microchip Technology AT17N512-10SI
- Part No.:
- AT17N512-10SI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AT17N512-10SI.pdf
- Description:
- IC FPGA 512K CONFIG MEM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,005
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Product details
Overview
AT17N512-10SI from Microchip Technology (formerly Atmel) is a 512-Kbit serial EEPROM FPGA configuration memory designed for Master Serial mode loading of Spartan-II, Spartan-IIE, and Spartan XL FPGAs. It operates at 3.3V ±10%, supports industrial temperature range (–40°C to +85°C), features 20-lead SOIC packaging, and delivers ≤100 µA standby current with 20-year data retention at 85°C.
For engineers reviewing the AT17N512-10SI datasheet, AT17N512-10SI pinout, AT17N512-10SI application, or AT17N512-10SI equivalent, this device serves as a drop-in replacement for Xilinx XC17SXXXA/L PROMs in legacy FPGA configuration systems requiring verified EEPROM-based boot memory with low-power operation and industrial-grade reliability.
Technical Context
The AT17N512-10SI implements a simple serial-access interface synchronized to an external FPGA-provided CCLK signal, enabling direct bitstream loading without host controller intervention. Its RESET/OE and CE pins jointly manage address counter enablement and DATA output tri-state control, with SER_EN pin selecting between FPGA configuration mode (SER_EN = VCC) and Two-Wire ISP programming mode (SER_EN = Low).
It uses a low-power CMOS EEPROM process with guaranteed 10 write cycles and operates across 3.0V–3.6V supply range. The device enters standby mode when CE is high, reducing ICCS to ≤100 µA under industrial conditions - critical for power-constrained embedded reconfiguration systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 524,288 × 1-bit (512 Kbit) - matches Spartan-II FPGA bitstream size requirements for full configuration. |
| Supply voltage | 3.3V ±10% (3.0V–3.6V) - compatible with standard 3.3V FPGA I/O rails and eliminates level-shifting needs. |
| Operating temperature | –40°C to +85°C - qualified for industrial environments including factory automation and outdoor telecom equipment. |
| Standby current | ≤100 µA at 3.3V/85°C - enables ultra-low-power system sleep states without losing configuration storage integrity. |
| Data retention | 20 years at 85°C - ensures long-term reliability in unattended or maintenance-limited deployments. |
| Write endurance | Minimum 10 write cycles - sufficient for field firmware updates or reprogramming during product lifecycle. |
| Max clock frequency | 10 MHz (industrial) - supports fast FPGA startup times (<100 ms typical for Spartan-II) without timing margin violations. |
Pinout & Package
AT17N512-10SI is packaged in a 20-lead SOIC (JEDEC 20S2) with 0.300" body width, 1.27 mm lead pitch, and RoHS-compliant matte tin finish. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DATA) | I/O bidirectional data line | Three-state open-collector output during configuration; used as input during Two-Wire ISP programming. |
| 2 (NC) | No Connect | Not bonded internally - must remain unconnected per design rules to avoid noise coupling or latch-up risk. |
| 3 (CLK) | Input clock | Synchronizes internal address/bit counter; driven directly by FPGA CCLK pin in Master Serial mode. |
| 4 (NC) | No Connect | Not bonded internally - left floating or tied to GND only if required by PCB layout constraints (not recommended). |
| 5–7 (NC) | No Connect | Multiple NC pins - all must remain unconnected to ensure correct internal biasing and ESD protection path integrity. |
| 8 (RESET/OE) | Input (dual-function) | Active-low reset and active-high output enable; resets address counter on low pulse and enables DATA output when high and CE low. |
| 9–10 (NC) | No Connect | Unbonded pins - no electrical function; avoid routing traces or vias to these pads. |
| 11 (CE) | Chip Enable (active low) | Disables address counter and forces DATA into high-impedance state when high - primary control for low-power standby. |
| 12 (NC) | No Connect | Not bonded - keep unconnected to prevent unintended coupling into sensitive analog or clock paths. |
| 13 (GND) | Ground reference | Primary return path for VCC and logic signals; requires local 0.2 µF decoupling capacitor to minimize ground bounce. |
| 14–15 (DC) | Die Connect (output-only) | Internally connected to die but not functional - must not be connected externally to avoid interference with internal bias networks. |
| 16 (VCC(SER_EN)) | Serial enable input | Must be tied to VCC for FPGA configuration; pulled low to enter Two-Wire ISP programming mode. |
| 17–19 (NC) | No Connect | Unbonded - leave unconnected to maintain specified thermal resistance (θJA = 150°C/W) and signal integrity. |
| 20 (VCC) | Power supply | 3.3V ±10% main supply; powers EEPROM core and I/O buffers - requires clean, regulated source with <100 mV ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Pin compatibility with Xilinx XC17SXXXA/L PROMs | Enables direct board-level replacement in existing Spartan-II designs without PCB revision or layout changes. |
| Two-Wire Serial In-System Programming (ISP) | Allows field firmware updates via SER_EN pin control and standard I²C-compatible protocol - no socket or programmer required. |
| Low-power standby mode | Reduces system quiescent current by >99% vs active mode, extending battery life in portable or remote FPGA-based instrumentation. |
| Industrial temperature qualification | Validated operation over –40°C to +85°C ensures stable configuration loading in harsh environments like motor drives or base stations. |
| 20-year data retention at 85°C | Guarantees bitstream integrity across full product lifecycle without periodic refresh - essential for safety-critical or inaccessible deployments. |
Applications
| Industrial PLC Configuration | Spartan-II-Based Test Equipment |
|---|---|
Use Scenario: Reconfigurable logic modules in programmable logic controllers require reliable, nonvolatile boot memory that survives repeated power cycling and ambient temperature swings. IC Role / Device Role / Timing Role: AT17N512-10SI stores full FPGA bitstream and loads it automatically on power-up in Master Serial mode, synchronized to FPGA CCLK. Use Value: Industrial temperature rating and 20-year data retention eliminate field failures due to configuration corruption in unattended factory-floor deployments. | Use Scenario: Automated test systems use Spartan-II FPGAs for real-time signal generation and acquisition, requiring fast, deterministic boot from nonvolatile memory. IC Role / Device Role / Timing Role: AT17N512-10SI provides 10 MHz serial read access to match Spartan-II's maximum configuration clock rate, ensuring sub-100 ms startup. Use Value: Pin compatibility with XC17SXXXA PROMs allows seamless migration from legacy Xilinx-based designs without redesigning PCBs or firmware loaders. |
| Legacy Telecom Baseband Processing | Avionics Reconfigurable Modules |
Use Scenario: Outdoor telecom base stations use Spartan-II FPGAs for channel filtering and modulation, needing configuration memory tolerant of wide thermal cycling and long service intervals. IC Role / Device Role / Timing Role: AT17N512-10SI acts as dedicated configuration store, interfacing directly with FPGA control pins (CE, RESET/OE, CLK) without auxiliary logic. Use Value: ≤100 µA standby current minimizes heat generation in sealed enclosures, while 10-write-cycle endurance supports occasional field upgrades. | Use Scenario: Avionics subsystems employ reconfigurable FPGAs for sensor fusion and flight control logic, demanding high-reliability, radiation-tolerant boot memory. IC Role / Device Role / Timing Role: AT17N512-10SI delivers deterministic bitstream loading in Master Serial mode, with SER_EN-controlled ISP enabling in-flight reprogramming verification. Use Value: High-reliability EEPROM process and 20-year data retention meet DO-254 compliance requirements for airborne electronic hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV512-10SI | Lower 2.7V–3.6V operating voltage range; improved 100K write endurance; same 20-lead SOIC package and pinout. | Supports mixed-voltage systems with 2.7V logic rails; better suited for new designs requiring higher reprogrammability. | Select AT17LV512-10SI for new designs where extended write cycles or wider VCC margin are needed; AT17N512-10SI remains optimal for legacy 3.3V-only systems. |
| Xilinx XC17S512D | OTP PROM (one-time programmable); no ISP capability; identical pinout and AC timing but lacks SER_EN-controlled programming mode. | Used where configuration is fixed post-manufacture; no field update capability; lower cost per unit in high-volume production. | Choose XC17S512D only if configuration never changes after assembly; AT17N512-10SI is mandatory when field reprogramming or prototyping flexibility is required. |
Compared with AT17LV512-10SI, AT17N512-10SI offers proven industrial reliability at 3.3V with simpler power design, while XC17S512D sacrifices reprogrammability for cost and density - making AT17N512-10SI the balanced choice for maintainable, field-upgradable Spartan-II systems.
Availability
AT17N512-10SI is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, and legacy telecom infrastructure requiring stable component supply, long-term obsolescence management, and verified drop-in compatibility with Xilinx XC17SXXXA/L PROMs.
Supply support for AT17N512-10SI 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 the AT17N series.
The AT17N product line was designed specifically to provide cost-effective, EEPROM-based configuration memory for SRAM-based FPGAs - targeting industrial, telecom, and aerospace applications where field reprogrammability and long-term data retention are essential.
FAQ
What is the primary function of the AT17N512-10SI in an FPGA system?
The AT17N512-10SI serves as a serial configuration EEPROM that stores and loads the bitstream for Spartan-II, Spartan-IIE, and Spartan XL FPGAs in Master Serial mode. It interfaces directly with FPGA control signals (CCLK, DIN, CE, RESET/OE) and requires no external controller. AT17N512-10SI enables automatic, deterministic FPGA initialization on power-up using its internal address counter and three-state DATA output.
Can the AT17N512-10SI be programmed in-system without removing it from the PCB?
Yes, the AT17N512-10SI supports Two-Wire Serial In-System Programming (ISP) by pulling the VCC(SER_EN) pin low. This activates its internal ISP interface, allowing field reprogramming via standard I²C-compatible signals without socketing or external programmers. AT17N512-10SI retains full functionality in normal configuration mode when SER_EN is tied to VCC.
Is the AT17N512-10SI pin-compatible with Xilinx XC17S512A PROMs?
Yes, the AT17N512-10SI is explicitly documented as pin-compatible with Xilinx XC17SXXXA and XC17SXXXXL PROMs. Its 20-lead SOIC footprint, pin assignments (including DATA, CLK, RESET/OE, CE, VCC, GND), and AC timing parameters match those devices - enabling direct replacement in existing Spartan-II designs without PCB modification.
What is the maximum clock frequency supported by the AT17N512-10SI in industrial temperature range?
The AT17N512-10SI supports a maximum clock frequency of 10 MHz under industrial conditions (–40°C to +85°C), as specified in the AC Characteristics table. This ensures reliable bitstream loading for Spartan-II FPGAs even at elevated temperatures, with timing margins preserved across voltage (3.0V–3.6V) and process variations. AT17N512-10SI maintains this performance without derating.
Does the AT17N512-10SI require external decoupling capacitors?
Yes, a 0.2 µF decoupling capacitor is recommended between VCC and GND, placed as close as possible to the AT17N512-10SI package. This stabilizes the supply rail during DATA output transitions and prevents ground bounce that could corrupt configuration reads. AT17N512-10SI's low-noise CMOS EEPROM design depends on clean power delivery for reliable 20-year data retention.
AT17N512-10SI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- Serial EEPROM
- Memory Size:
- 512kb
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
AT17N512-10SI FAQ
1.How can I place an order for AT17N512-10SI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17N512-10SI 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 AT17N512-10SI reliable?
The price and inventory of AT17N512-10SI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17N512-10SI is usually 5 days.
3.What payment methods are accepted for AT17N512-10SI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17N512-10SI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17N512-10SI?
AT17N512-10SI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17N512-10SI 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 AT17N512-10SI?
For technical support, including AT17N512-10SI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17N512-10SI requirements.
6.How does Aetrix verify that AT17N512-10SI is sourced from the original manufacturer or authorized distributors?
All AT17N512-10SI 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 AT17N512-10SI meets industry standards.
7.What is the process for return or replacement of AT17N512-10SI?
All AT17N512-10SI units undergo pre-shipment inspection (PSI). If there is an issue with AT17N512-10SI, 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 AT17N512-10SI part is unused and in its original packaging.
Return procedure for AT17N512-10SI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17N512-10SI Tags
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