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Microchip Technology AT17C512-10JI
- Part No.:
- AT17C512-10JI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 20-LCC (J-Lead)
- Datasheet:
-
AT17C512-10JI.pdf
- Description:
- IC SER CONFIG PROM 512K 20PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,966
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Product details
Overview
AT17C512-10JI from Atmel is a 512-kilobit serial EEPROM FPGA configuration memory with 5V ±10% industrial supply range (–40°C to +85°C), 8-lead PLCC package, programmable reset polarity, and system-friendly READY pin. It provides nonvolatile storage for Xilinx XC4000™, Altera FLEX®, and Atmel AT40K/AT94K FPGA bitstreams in master serial mode.
For engineers reviewing the AT17C512-10JI datasheet, AT17C512-10JI pinout, AT17C512-10JI application, or AT17C512-10JI equivalent, key selection criteria include industrial temperature rating, cascading CEO support, in-system programmability via 2-wire bus, standby current ≤0.5 mA, and compatibility with SRAM-based FPGA power-up configuration sequences.
Technical Context
The AT17C512-10JI implements a serial-access configuration memory architecture with internal address counter, open-collector DATA output, and tri-state control via CE and RESET/OE. Its CEO output enables daisy-chain cascading for multi-FPGA systems or extended configuration data.
It supports both FPGA master serial loading (SER_EN = High) and in-system programming (SER_EN = Low), with programmable reset polarity stored in EEPROM bytes and write protection via WP1/WP2 inputs. The READY pin provides open-collector power-good indication during power-up reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 524,288 × 1-bit (512 kbit) nonvolatile EEPROM array for FPGA bitstream storage |
| Supply voltage | 5V ±10% - supports industrial-grade operation from –40°C to +85°C |
| Max clock frequency | 15 MHz - enables fast FPGA configuration at up to 15 million bits/sec |
| Standby current | ≤0.5 mA - low-power retention when CE is high, critical for always-on systems |
| Package | 20-lead PLCC (20J) - surface-mount compatible with standard reflow profiles and legacy through-hole footprints |
| Interface | 2-wire serial (CLK/DATA) with CE, RESET/OE, SER_EN, CEO, READY - direct connection to FPGA CCLK, DIN, INIT, CON/DONE signals |
| Reset polarity | Programmable - allows alignment with FPGA-specific active-Low or active-High INIT requirements |
Pinout & Package
AT17C512-10JI is housed in a 20-lead Plastic Leaded Chip Carrier (PLCC, package code 20J), measuring 9.78 mm × 9.78 mm × 3.68 mm, with J-bend leads and pin 1 identifier marked by corner chamfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLK | Input clock synchronized to FPGA CCLK; increments internal address/bit counter during read |
| 2 | WP1 | Write protect input #1 - disables partial memory programming when asserted; internal pull-down default |
| 3 | RESET/OE | Combined reset (active Low) and output enable (active High); resets address counter and controls DATA driver state |
| 4 | WP2 | Write protect input #2 - dual-zone protection; internal pull-down default; unused during FPGA loading |
| 5 | CE | Chip enable (active Low) - enables address counting and DATA output; forces standby mode when high |
| 6 | NC | No connect - electrically isolated; must be left unconnected per design |
| 7 | SER_EN | Serial enable - must be tied to VCC for FPGA loading; pulled low to enter 2-wire ISP mode |
| 8 | NC | No connect - electrically isolated; must be left unconnected per design |
| 9 | READY | Open-collector power-good indicator - driven Low during power-on reset, tri-stated after stabilization (requires 4.7 kΩ pull-up) |
| 10 | CEO (A2) | Chip enable output (active Low) - signals end-of-data to next device in cascade chain; also serves as A2 device select during ISP |
| 11–13 | NC | No connect - electrically isolated; must be left unconnected per design |
| 14 | GND | Ground reference - requires 0.2 µF decoupling capacitor to VCC per layout guidelines |
| 15–16 | NC | No connect - electrically isolated; must be left unconnected per design |
| 17 | DATA | Three-state bidirectional I/O - delivers configuration bits to FPGA DIN; open-collector for wired-OR cascading |
| 18–19 | NC | No connect - electrically isolated; must be left unconnected per design |
| 20 | VCC | +5V power supply - operates across 4.5V–5.5V range for industrial applications |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | Enables field updates of FPGA configuration without removing AT17C512-10JI from PCB via 2-wire serial interface |
| Cascadable CEO output | Allows daisy-chaining multiple AT17C512-10JI devices to support >512 kbit FPGA configurations or multi-FPGA systems |
| Programmable reset polarity | Permits matching FPGA INIT signal logic (active Low or active High) without external level-shifting circuitry |
| System-friendly READY pin | Provides hardware reset coordination between power supply stabilization and FPGA configuration start timing |
| Low-power standby mode | Reduces system quiescent current to ≤0.5 mA when CE is high, extending battery life in portable FPGA platforms |
Applications
| Industrial PLC Configuration | Xilinx Spartan® FPGA Boot |
|---|---|
Use Scenario: Configuring SRAM-based FPGAs in programmable logic controllers deployed in factory automation environments with wide temperature swings. IC Role / Device Role / Timing Role: Nonvolatile configuration memory that loads bitstream on power-up, synchronized to FPGA CCLK and coordinated via READY and INIT signals. Use Value: Ensures deterministic boot behavior across –40°C to +85°C industrial operating range with no external controller required. | Use Scenario: Storing and delivering configuration data to Xilinx Spartan® FPGAs in cost-sensitive embedded vision systems. IC Role / Device Role / Timing Role: Master serial configurator interfacing directly to Spartan® DIN and CCLK pins, using CEO for optional multi-device chaining. Use Value: Eliminates need for external microcontroller or CPLD in boot sequence, reducing BOM count and board area. |
| Altera FLEX® FPGA System Boot | Multi-FPGA Telecommunications Module |
Use Scenario: Powering up Altera FLEX®-based communication interface cards in telecom infrastructure equipment. IC Role / Device Role / Timing Role: Serial configuration EEPROM providing bitstream to FLEX® device in master serial mode, with RESET/OE aligned to FPGA INIT. Use Value: Guarantees reliable configuration delivery under noisy EMI conditions due to robust 5V CMOS I/O and built-in write protection. | Use Scenario: Supporting large-scale FPGA designs requiring >512 kbit configuration data across multiple FPGAs on a single line card. IC Role / Device Role / Timing Role: First-stage configurator in daisy chain, using CEO to enable subsequent AT17C512-10JI devices for sequential bitstream delivery. Use Value: Enables scalable configuration memory expansion without redesigning FPGA interface logic or adding glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV512-10JI | 3.3V nominal supply (3.0–3.6V), lower max clock (10 MHz industrial), higher standby current (100 µA) | Targeted for 3.3V FPGA systems; not suitable for 5V-only designs | Select only if host FPGA and power rail operate at 3.3V; verify timing margins at reduced clock rate. |
| XCR3064XL-10VQG44C | Non-volatile CPLD with integrated configuration logic; no external EEPROM needed | Replaces serial EEPROM + FPGA combo with single-chip solution; requires different design architecture | Consider for new designs where CPLD-based configuration control adds value; not drop-in replacement for AT17C512-10JI. |
Compared with AT17LV512-10JI, the AT17C512-10JI offers higher noise immunity and faster configuration speed at 5V, while the XCR3064XL-10VQG44C eliminates external memory but mandates CPLD-based configuration management instead of pure serial loading.
Availability
AT17C512-10JI is available at Aetrix Electronics and suitable for industrial automation, telecommunications infrastructure, and embedded FPGA development requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AT17C512-10JI 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 FPGA configuration solutions.
The AT17 Series was designed specifically for reliable, low-cost, serial FPGA configuration in industrial and telecom applications, emphasizing pin-compatible scalability across density and voltage variants.
FAQ
What is the operating temperature range for AT17C512-10JI?
The AT17C512-10JI is rated for industrial operation from –40°C to +85°C. This range is guaranteed under 5V ±10% supply conditions and aligns with JEDEC industrial specifications. The "I" suffix in the part number explicitly denotes this industrial temperature grade, distinguishing it from commercial-grade variants like AT17C512-10CC.
Does AT17C512-10JI support cascading with other configuration EEPROMs?
Yes, AT17C512-10JI supports hardware cascading via its CEO (Chip Enable Output) pin. When the internal address counter reaches maximum value, CEO goes Low to enable the CE input of the next AT17C512-10JI or compatible device in the chain. This allows seamless extension of configuration memory capacity beyond 512 kbit without external logic.
Can AT17C512-10JI be programmed in-circuit after PCB assembly?
Yes, AT17C512-10JI supports in-system programming (ISP) through its 2-wire serial interface. By pulling SER_EN low, the device enters ISP mode and accepts programming commands via CLK and DATA pins. This capability enables field updates of FPGA configuration data without removing AT17C512-10JI from the board.
What is the function of the READY pin on AT17C512-10JI?
READY is an open-collector output that is actively driven Low during the AT17C512-10JI's internal power-on reset cycle and tri-stated upon completion. Used with a 4.7 kΩ pull-up resistor, it provides a hardware signal to synchronize FPGA configuration start with stable VCC, preventing premature bitstream loading before power rails settle.
Is AT17C512-10JI pin-compatible with older Xilinx XC17 series PROMs?
Yes, AT17C512-10JI is designed as a drop-in replacement for Xilinx XC17 series configuration PROMs in most master serial FPGA applications. Pin functions (CLK, DATA, CE, RESET/OE) match directly, and timing parameters meet or exceed XC17 requirements - though designers must verify RESET/OE polarity programming and READY pin usage per schematic.
AT17C512-10JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 20-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- Serial EEPROM
- Memory Size:
- 512kb
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-PLCC (9x9)
AT17C512-10JI FAQ
1.How can I place an order for AT17C512-10JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17C512-10JI 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 AT17C512-10JI reliable?
The price and inventory of AT17C512-10JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17C512-10JI is usually 5 days.
3.What payment methods are accepted for AT17C512-10JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17C512-10JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17C512-10JI?
AT17C512-10JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17C512-10JI 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 AT17C512-10JI?
For technical support, including AT17C512-10JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17C512-10JI requirements.
6.How does Aetrix verify that AT17C512-10JI is sourced from the original manufacturer or authorized distributors?
All AT17C512-10JI 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 AT17C512-10JI meets industry standards.
7.What is the process for return or replacement of AT17C512-10JI?
All AT17C512-10JI units undergo pre-shipment inspection (PSI). If there is an issue with AT17C512-10JI, 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 AT17C512-10JI part is unused and in its original packaging.
Return procedure for AT17C512-10JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17C512-10JI Tags
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EPCQ64ASI16N
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