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Microchip Technology AT17C010A-10JI
- Part No.:
- AT17C010A-10JI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 20-LCC (J-Lead)
- Datasheet:
-
AT17C010A-10JI.pdf
- Description:
- IC SERIAL CONFIG PROM 1M 20PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,957
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Product details
Overview
AT17C010A-10JI from Atmel is a 1-Mbit serial EEPROM FPGA configuration memory designed to store and load bitstream data for Altera FLEX® devices. It operates at 5V ±10% over -40°C to +85°C, features in-system programmability via 2-wire interface, supports cascading for multi-device configurations, and includes programmable reset polarity and system-friendly READY pin (in PLCC/TQFP packages).
For engineers reviewing the AT17C010A-10JI datasheet, AT17C010A-10JI pinout, AT17C010A-10JI application, or AT17C010A-10JI equivalent, key selection criteria include industrial temperature support, 5V operation, TQFP/PLCC/PDIP package options, cascading capability via nCASC, and compatibility with Altera EPC1 replacement requirements.
Technical Context
The AT17C010A-10JI functions as a master or slave configuration controller for Altera FPGAs using internal oscillator-driven DCLK output in master mode or external clock synchronization in slave mode. Its address counter, tri-state DATA output, and nCASC handshaking enable daisy-chained multi-device configuration without external logic.
It implements EEPROM-based nonvolatile storage with 1-Mbit (131,072 × 8) organization, supports SER_EN–enabled 2-wire programming, and uses WP1 for partial memory write protection. The READY pin provides open-collector power-on reset status indication, while OE serves dual role as active-High output enable and active-Low reset signal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Mbit (131,072 × 8 bits), sufficient to configure Altera EPF10K-class FPGAs or multiple smaller devices |
| Supply Voltage | 5V ±10% - supports industrial-grade operation from -40°C to +85°C |
| Operating Mode | Master mode (internal clock generation) or slave mode (external DCLK sync) selectable via SER_EN and programming |
| Cascading Support | nCASC output drives nCS of next device - enables serial chaining for extended configuration capacity |
| Reset Polarity | Programmable via EEPROM bytes - must be set to active-Low OE for Altera applications |
| Standby Current | <0.5 mA at 5V - low-power idle state when nCS is High |
| READY Pin | Open-collector output - driven Low during power-on reset, tri-stated after completion (available in PLCC/TQFP only) |
Pinout & Package
AT17C010A-10JI is available in three industrial-temperature packages: 8-lead PDIP (8P3), 20-lead PLCC (20J), and 32-lead TQFP (32A). Pin functions are identical across packages; READY and WP1 are present in PLCC and TQFP but not PDIP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DATA | I/O bidirectional | Three-state configuration data output (master) or serial programming I/O (SER_EN = Low); open-collector during programming |
| DCLK | I/O clock | Rising-edge–triggered address counter increment; outputs internal clock in master mode, accepts external clock in slave mode |
| OE | Input | Active-High output enable / active-Low reset - polarity programmable; resets address counter when Low |
| nCS | Input | Active-Low chip select - determines master (nCS Low at reset) vs. slave (nCS High at reset) initialization in daisy chain |
| nCASC | Output | Active-Low cascade select - signals end-of-data to trigger next device in chain; tied to nCS of downstream Configurator |
| READY | Output | Open-collector reset status indicator - Low during power-on reset, tri-stated after stabilization (PLCC/TQFP only) |
| WP1 | Input | Write protect control - disables programming of protected memory regions; internally pulled down, unused during FPGA loading |
| SER_EN | Input | Serial enable - must be High for FPGA configuration; Low enables 2-wire in-system programming mode |
| VCC | Power | +5V ±10% supply - powers EEPROM array, logic, and oscillator; requires local 0.2 µF decoupling to GND |
| GND | Ground | Reference ground - mandatory 0.2 µF decoupling capacitor between VCC and GND pins |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | 2-wire serial interface enabled by SER_EN Low - eliminates need for socketed programming, supports field updates |
| Cascadable architecture | nCASC/nCS handshaking - enables seamless expansion beyond 1-Mbit capacity using multiple AT17C010A-10JI devices |
| Configurable reset polarity | User-programmable OE behavior - ensures compatibility with Altera FPGA reset timing requirements (must be active-Low) |
| System-ready signaling | READY pin (PLCC/TQFP) - simplifies FPGA power-up sequencing by indicating EEPROM reset completion |
| Low-power standby | <0.5 mA ICCS at 5V - reduces system power budget when nCS is deasserted during idle periods |
| Altera EPC1 replacement | Pin- and function-compatible drop-in alternative - meets timing, voltage, and configuration protocol requirements for EPC1 migration |
Applications
| Industrial FPGA Configuration | Multi-FPGA System Boot |
|---|---|
Use Scenario: Configuring Altera FLEX10K FPGAs in motor control drives operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Nonvolatile configuration memory providing bitstream on power-up; generates DCLK and sequences DATA under OE/nCS control. Use Value: Enables reliable cold-start operation with guaranteed 5V ±10% tolerance and industrial temp rating - eliminates boot failures in harsh environments. |
Use Scenario: Booting dual EPF10K20 devices in telecom line card where total configuration exceeds 1 Mbit. IC Role / Device Role / Timing Role: Master AT17C010A-10JI initiates chain, clocks both FPGAs and second Configurator; nCASC triggers handoff to slave device. Use Value: Eliminates external sequencer logic - reduces BOM count and PCB area while maintaining deterministic, glitch-free multi-device startup. |
| Legacy EPC1 Migration | Field-Upgradeable Logic Systems |
Use Scenario: Replacing obsolete Altera EPC1 in existing industrial PLC designs requiring long-term component availability. IC Role / Device Role / Timing Role: Direct functional and pin-compatible substitute - matches EPC1's 1-Mbit density, 5V operation, and daisy-chain interface. Use Value: Zero PCB redesign required - preserves layout, timing margins, and firmware while extending product lifecycle with qualified Atmel sourcing. |
Use Scenario: Enabling remote reconfiguration of FPGA gateware in deployed edge IoT gateways via UART-to-I²C bridge. IC Role / Device Role / Timing Role: In-system programmable EEPROM - accepts new bitstreams over 2-wire bus without power cycle or physical access. Use Value: Supports over-the-air FPGA updates - reduces service calls and enables feature enhancements post-deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV010A-10JI | 3.3V ±10% operation instead of 5V; lower ICCA (5 mA vs. 10 mA) and ICCS (100 µA vs. 0.5 mA); slower AC timing (e.g., FMAX = 10 MHz vs. 12.5 MHz) | Requires 3.3V system rail; not suitable for legacy 5V-only designs or EPC1 drop-in replacement | Select when migrating to 3.3V FPGA platforms and lower power is prioritized over speed |
| Altera EPC1 | Same 1-Mbit density and 5V operation; identical pinout and timing; discontinued by Intel/Altera; no longer manufactured or supported | Exact functional replacement - no design changes needed beyond part number update and qualification | Choose AT17C010A-10JI as direct production-ready substitute for EPC1 in new builds or obsolescence mitigation |
Compared with AT17LV010A-10JI and Altera EPC1, the AT17C010A-10JI delivers industrial-grade 5V operation with faster timing and higher drive strength, making it the optimal choice for legacy 5V systems, EPC1 replacement, and applications requiring robust noise immunity without voltage scaling.
Availability
AT17C010A-10JI is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and legacy FPGA system upgrades requiring stable component supply, long-lifecycle support, and guaranteed industrial temperature performance.
Supply support for AT17C010A-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 programmable logic solutions.
The AT17A Series was designed specifically to provide cost-effective, reliable, and easy-to-integrate configuration memory for Altera FLEX® FPGAs - emphasizing simplicity, cascading flexibility, and industrial environmental resilience.
FAQ
What is the primary function of the AT17C010A-10JI in an FPGA system?
The AT17C010A-10JI serves as a dedicated nonvolatile configuration memory that stores and serially loads bitstream data into Altera FLEX® FPGAs at power-up. It autonomously manages the configuration sequence using its internal oscillator in master mode or synchronizes to an external clock in slave mode, eliminating the need for host processor intervention during FPGA initialization.
Does the AT17C010A-10JI support cascading with other configuration EEPROMs?
Yes, the AT17C010A-10JI supports hardware-cascaded configuration through its nCASC output and nCS input. When the first device completes data transmission, it asserts nCASC Low to activate the nCS of the next AT17C010A-10JI in the chain - enabling seamless multi-device bitstream loading without additional control logic.
Is the READY pin available on all AT17C010A-10JI package variants?
No. The READY pin is present only in the 20-lead PLCC (20J) and 32-lead TQFP (32A) packages of the AT17C010A-10JI. It is omitted from the 8-lead PDIP (8P3) variant. When used, READY provides open-collector indication of power-on reset completion and requires a 4.7 kΩ pull-up resistor.
Can the AT17C010A-10JI replace the Altera EPC1 in existing designs?
Yes, the AT17C010A-10JI is a documented pin-compatible and functionally equivalent replacement for the discontinued Altera EPC1. It matches the 1-Mbit density, 5V operation, timing specifications, and daisy-chain interface - allowing direct substitution without PCB or firmware modifications in qualified industrial applications.
How is in-system programming performed on the AT17C010A-10JI?
In-system programming of the AT17C010A-10JI is enabled by driving SER_EN Low, which activates the 2-wire serial interface. Programming occurs at the nominal VCC supply (5V) with internal charge pumps generating required high-voltage levels - no external programming voltage is needed. Industry-standard programmers or Atmel's ATDH2225 ISP cable can be used.
AT17C010A-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:
- 1Mb
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-PLCC (9x9)
AT17C010A-10JI FAQ
1.How can I place an order for AT17C010A-10JI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17C010A-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 AT17C010A-10JI reliable?
The price and inventory of AT17C010A-10JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17C010A-10JI is usually 5 days.
3.What payment methods are accepted for AT17C010A-10JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17C010A-10JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17C010A-10JI?
AT17C010A-10JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17C010A-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 AT17C010A-10JI?
For technical support, including AT17C010A-10JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17C010A-10JI requirements.
6.How does Aetrix verify that AT17C010A-10JI is sourced from the original manufacturer or authorized distributors?
All AT17C010A-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 AT17C010A-10JI meets industry standards.
7.What is the process for return or replacement of AT17C010A-10JI?
All AT17C010A-10JI units undergo pre-shipment inspection (PSI). If there is an issue with AT17C010A-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 AT17C010A-10JI part is unused and in its original packaging.
Return procedure for AT17C010A-10JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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