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Microchip Technology AT17C512-10CI
- Part No.:
- AT17C512-10CI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 8-TDFN
- Datasheet:
-
AT17C512-10CI.pdf
- Description:
- IC SRL CONFIG EEPROM 512K 8LAP
- Quantity:
- Payment:
- Shipping:
Inventory:1,108
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Product details
Overview
AT17C512-10CI from Atmel is a 512-kilobit serial EEPROM FPGA configuration memory with 5V ±10% industrial supply range (-40°C to +85°C), 8-lead LAP (6 mm × 6 mm × 1 mm) package, and in-system programmability via 2-wire bus. It provides nonvolatile storage for SRAM-based FPGAs including Xilinx XC4000™, Spartan®, Virtex™, Altera FLEX®, and Atmel AT40K/AT94K devices.
For engineers reviewing the AT17C512-10CI datasheet, AT17C512-10CI pinout, AT17C512-10CI application, or AT17C512-10CI equivalent, key selection considerations include industrial temperature support, cascading CEO capability, programmable reset polarity, READY pin availability, and compatibility with master serial FPGA configuration modes.
Technical Context
The AT17C512-10CI implements a serial-access configuration memory architecture with tri-state DATA output controlled by CE and RESET/OE, an internal address counter auto-reset on power-up, and cascading support via CEO (active-Low chip enable output). Its SER_EN pin selects between FPGA loading mode (SER_EN = High) and 2-wire ISP programming mode (SER_EN = Low).
It features dual write-protect inputs (WP1/WP2), open-collector READY output indicating power-on reset completion, and programmable reset polarity stored in EEPROM bytes. The device operates in low-power standby (<0.5 mA at 5V) when CE is high, and supports daisy-chained configurations where CEO of one device drives CE of the next.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 524,288 × 1-bit (512 kbit) nonvolatile EEPROM storage for FPGA bitstream |
| Supply voltage | 5V ±10% - supports industrial-grade operation from -40°C to +85°C |
| Max clock frequency | 15 MHz - enables fast configuration loading for high-speed FPGA startup |
| Standby current | <0.5 mA - minimizes system power draw during FPGA idle or hold states |
| Package | 8-lead LAP (6 mm × 6 mm × 1 mm) - surface-mount, pin-compatible with 8-lead SOIC/VOIC |
| Interface | 2-wire serial (CLK/DATA) with CE, RESET/OE, SER_EN, CEO, READY - direct connection to FPGA master serial pins |
| Reset polarity | Programmable - allows active-Low RESET or active-High OE configuration per FPGA requirements |
Pinout & Package
AT17C512-10CI is housed in an 8-lead Leadless Array Package (LAP), measuring 6 mm × 6 mm × 1 mm, with 1.27 mm lead pitch and exposed metal pad. This RoHS-compliant surface-mount package offers thermal resistance θJA = 135.71°C/W (0 ft/min airflow) and is pin-compatible with standard 8-lead SOIC and VOIC footprints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DATA | Open-collector bidirectional I/O - outputs configuration data to FPGA DIN; used for 2-wire programming |
| 2 | CLK | Input clock - increments internal address/bit counter; driven by FPGA CCLK |
| 3 | RESET/OE | Combined input - active-Low reset (resets address counter) or active-High output enable (enables DATA) |
| 4 | CE | Chip Enable (active-Low) - enables read operations and disables standby mode when low |
| 5 | VCC | +5V power supply - must be decoupled with 0.2 µF capacitor to GND |
| 6 | SER_EN | Serial Enable - high for FPGA loading; low to enter 2-wire ISP programming mode |
| 7 | CEO (A2) | Chip Enable Output (active-Low) - signals end-of-data; used to cascade multiple configurators |
| 8 | GND | Ground reference - common return path for all signals and power |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | Enables field updates without socket removal using 2-wire interface and SER_EN control |
| Cascadable CEO output | Allows daisy-chaining multiple AT17 devices to support larger FPGA bitstreams or multi-FPGA systems |
| System-friendly READY pin | Open-collector indicator driven Low during power-on reset - synchronizes FPGA startup with stable VCC |
| Programmable reset polarity | EEPROM-stored setting allows flexible integration with diverse FPGA reset architectures (RESET vs OE logic) |
| Low-power standby mode | CE-high state reduces current to <0.5 mA - critical for battery-backed or energy-sensitive embedded systems |
Applications
| Industrial PLC Configuration | Xilinx Spartan® System Boot |
|---|---|
Use Scenario: Reconfigurable logic modules in factory automation controllers require reliable, field-updatable bitstream storage across wide temperature ranges. IC Role / Device Role / Timing Role: AT17C512-10CI serves as primary nonvolatile configuration memory, delivering bitstream on power-up in Master Serial mode synchronized to FPGA CCLK. Use Value: Industrial temperature rating (-40°C to +85°C) and 5V tolerance ensure robust operation in harsh electrical environments with voltage transients. | Use Scenario: Compact embedded systems using Xilinx Spartan FPGAs need fast, deterministic boot from external memory without external microcontroller intervention. IC Role / Device Role / Timing Role: AT17C512-10CI acts as dedicated serial configurator, interfacing directly with Spartan DIN/CCLK/INIT pins to initiate configuration automatically at power-on. Use Value: 15 MHz max clock frequency and sub-50 ns timing parameters (e.g., TCAC = 50 ns) guarantee rapid, glitch-free bitstream delivery. |
| Altera FLEX® Multi-Device Chain | Atmel AT40KAL Field Upgrade |
Use Scenario: Legacy industrial equipment with Altera FLEX FPGAs requires modular reconfiguration across multiple logic blocks using shared configuration infrastructure. IC Role / Device Role / Timing Role: AT17C512-10CI functions as first-stage configurator in daisy chain, with CEO driving CE of subsequent AT17 devices to extend total memory capacity. Use Value: Cascading capability (CEO-to-CE) and identical pinout across AT17 family simplify PCB layout and firmware updates across device variants. | Use Scenario: Field-deployed instrumentation using Atmel AT40KAL FPGAs must support secure, in-service firmware patches without hardware replacement. IC Role / Device Role / Timing Role: AT17C512-10CI stores updated configuration images and enables in-system programming via SER_EN-controlled 2-wire interface. Use Value: In-system programmability eliminates need for UV erasers or socketed EPROMs, reducing maintenance downtime and logistics overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV512-10CI | 3.3V ±10% supply only; lower ICCA (5 mA) and ICCS (100 µA); reduced FMAX (10 MHz industrial) | Targeted for 3.3V FPGA systems; not suitable for 5V legacy designs or mixed-voltage boards | Select when system VCC is strictly 3.3V and lower power consumption is prioritized over speed |
| AT17C512-10PI | Identical electrical specs but in 8-lead PDIP package (7.62 mm width); higher θJA (107°C/W) | Preferred for prototyping, through-hole assembly, or legacy board upgrades requiring DIP footprint | Select for hand-soldering, breadboarding, or replacing obsolete PDIP-based configurators |
Compared with AT17LV512-10CI and AT17C512-10PI, the AT17C512-10CI uniquely balances industrial 5V operation, surface-mount LAP packaging, and 15 MHz performance-making it optimal for production-grade, space-constrained, wide-temperature FPGA systems requiring drop-in reliability.
Availability
AT17C512-10CI is available at Aetrix Electronics and suitable for industrial PLCs, Xilinx Spartan®-based embedded controllers, Altera FLEX® multi-FPGA systems, and Atmel AT40KAL field-upgrade platforms requiring stable component supply across extended temperature and voltage ranges.
Supply support for AT17C512-10CI 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) designed high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and communications applications before its 2016 acquisition.
The AT17 Series was developed specifically to provide cost-effective, easy-to-integrate serial configuration memory for SRAM-based FPGAs-including Xilinx, Altera, Lucent, and Atmel's own FPGA families-emphasizing simplicity, cascading flexibility, and system-level power sequencing support.
FAQ
What is the operating temperature range for the AT17C512-10CI?
The AT17C512-10CI is rated for industrial operation from -40°C to +85°C. This specification is guaranteed under 5V ±10% supply conditions and applies to all package variants (LAP, PDIP, PLCC). The device meets this range without derating and supports full AC timing performance across the entire span, making it suitable for factory-floor and outdoor embedded deployments where ambient thermal stress is expected. AT17C512-10CI maintains reliable EEPROM data retention and configuration integrity under these conditions.
Does the AT17C512-10CI support cascading with other configuration EEPROMs?
Yes, the AT17C512-10CI supports hardware cascading via its CEO (Chip Enable Output) pin, which goes active-Low when the internal address counter reaches its maximum value. In a daisy-chain configuration, CEO of one AT17C512-10CI drives the CE input of the next device, enabling seamless extension of configuration memory depth. This feature is electrically and functionally identical across the AT17 family, allowing mixed-density chaining (e.g., AT17C512-10CI followed by AT17C010-10CI). AT17C512-10CI's CEO timing (TOCE = 35 ns) ensures deterministic handoff between devices.
Can the AT17C512-10CI be programmed in-circuit after soldering to the PCB?
Yes, the AT17C512-10CI 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 on CLK and DATA lines-no socket removal or UV exposure required. Programming occurs at the nominal VCC supply (5V), with internal charge pumps generating necessary high voltages. Industry-standard programmers (e.g., Atmel ATDH2225 ISP Cable) and compatible third-party tools fully support AT17C512-10CI, enabling field updates and manufacturing flexibility. AT17C512-10CI retains full functionality in both ISP and normal FPGA-loading modes.
What is the purpose of the READY pin on the AT17C512-10CI?
The READY pin on the AT17C512-10CI is an open-collector output that is actively driven Low during the internal power-on reset cycle and tri-stated (released) once VCC stabilizes and the device is ready to operate. It provides a hardware handshake signal to synchronize FPGA startup-ensuring the FPGA does not begin configuration until the AT17C512-10CI has completed initialization. A 4.7 kΩ pull-up resistor is recommended on this pin. Unlike earlier AT17 variants, AT17C512-10CI includes READY as a standard feature, enhancing system robustness in power-noisy environments. AT17C512-10CI's READY behavior is fully documented in the AC characteristics table.
Is the AT17C512-10CI pin-compatible with other packages in the AT17 family?
Yes, the AT17C512-10CI in the 8-lead LAP package shares identical pin numbering, signal assignment, and electrical behavior with the AT17C512-10PI (PDIP) and AT17C512-10JI (PLCC) variants. All three packages implement the same 8-pin functional map: DATA, CLK, RESET/OE, CE, VCC, SER_EN, CEO (A2), and GND. This cross-package pin compatibility allows designers to select the optimal form factor (surface-mount LAP for density, through-hole PDIP for prototyping, or PLCC for legacy layouts) without modifying schematic or firmware. AT17C512-10CI maintains full functional equivalence across all package types.
AT17C512-10CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TDFN
- 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:
- 8-LAP (6x6)
AT17C512-10CI FAQ
1.How can I place an order for AT17C512-10CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17C512-10CI 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 AT17C512-10CI reliable?
The price and inventory of AT17C512-10CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17C512-10CI is usually 5 days.
3.What payment methods are accepted for AT17C512-10CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17C512-10CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17C512-10CI?
AT17C512-10CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17C512-10CI 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 AT17C512-10CI?
For technical support, including AT17C512-10CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17C512-10CI requirements.
6.How does Aetrix verify that AT17C512-10CI is sourced from the original manufacturer or authorized distributors?
All AT17C512-10CI 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 AT17C512-10CI meets industry standards.
7.What is the process for return or replacement of AT17C512-10CI?
All AT17C512-10CI units undergo pre-shipment inspection (PSI). If there is an issue with AT17C512-10CI, 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 AT17C512-10CI part is unused and in its original packaging.
Return procedure for AT17C512-10CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17C512-10CI Tags
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AT17LV512A-10PU
Microchip Technology
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EPCQ4ASI8N
Intel
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AT17LV256-10PU
Microchip Technology
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AT17LV256-10NU
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EPCQ16ASI8N
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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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