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Microchip Technology AT17C65-10NI
- Part No.:
- AT17C65-10NI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT17C65-10NI.pdf
- Description:
- IC EEPROM FPGA 64KB 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,616
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Product details
Overview
AT17C65-10NI from Microchip Technology (formerly Atmel) is a 65,536 × 1-bit serial EEPROM FPGA configuration memory designed for master-serial mode loading of SRAM-based FPGAs. It operates at 5V ±10% over –40°C to +85°C industrial temperature range, supports programmable reset polarity, and features cascading capability via CEO output-used in industrial control logic and reconfigurable embedded systems.
For engineers reviewing the AT17C65-10NI datasheet, AT17C65-10NI pinout, AT17C65-10NI application, or AT17C65-10NI equivalent, this page delivers verified package mapping (20-lead PLCC), confirmed 12.5 MHz max clock frequency, standby current ≤150 µA, write-protection via WP input, and compatibility with Xilinx XC3000/XC4000, Altera FLEX®, and Atmel AT40K FPGAs.
Technical Context
The AT17C65-10NI implements a serial-access EEPROM architecture optimized for FPGA configuration bitstream storage and sequential read-out under CCLK-driven timing. Its internal address counter advances on each CLK rising edge, synchronized to FPGA master clock, with automatic wraparound after 65,536 bits.
It supports two distinct operational modes: normal configuration mode (SER_EN = High) and 2-wire in-system programming mode (SER_EN = Low). Reset polarity (active-High/active-Low) is user-programmable in EEPROM memory, and CEO output enables daisy-chained configuration of larger FPGA arrays-though AT17C65-10NI itself functions only as end-of-chain or standalone device.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 65,536 × 1-bit (64 Kbit); stores full configuration bitstream for mid-size SRAM FPGAs like Xilinx XC4005 or Altera EPF10K10. |
| Supply Voltage | 5V ±10% (industrial grade); ensures stable operation across wide voltage tolerance in noisy industrial power rails. |
| Max Clock Frequency | 12.5 MHz; enables fast configuration load times (<5.2 ms full read at max rate) for time-critical boot sequences. |
| Standby Current | ≤150 µA at 5V; minimizes quiescent power draw during FPGA initialization hold states or system sleep modes. |
| Operating Temperature | –40°C to +85°C; qualified for deployment in industrial automation, motor drives, and outdoor telecom equipment. |
| Reset Polarity | Programmable active-High or active-Low via EEPROM byte; eliminates need for external inverters in FPGA reset interface design. |
| Write Protection | Hardware WP input disables writes to lowest memory block when asserted; prevents accidental corruption of critical boot code. |
Pinout & Package
AT17C65-10NI is packaged in 20-lead PLCC (Plastic Leaded Chip Carrier), JEDEC MS-018 AA compliant, with 0.400" body width and J-leads for surface-mount assembly. Pin 1 marked by corner notch; lead pitch 0.050", seating plane height 0.015" min.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DATA | Bi-directional open-collector I/O; drives FPGA DIN during configuration; used for serial data I/O during 2-wire programming. |
| 2 | CLK | Input clock synchronized to FPGA CCLK; increments internal address counter on rising edge for sequential bitstream readout. |
| 3 | (WP) RESET/OE | Multi-function input: active-Low reset/enable (config mode) or write-protect (programming mode); polarity programmable in EEPROM. |
| 4 | CE | Chip Enable input; Low enables DATA output and address counting; High forces low-power standby (ICCS ≤150 µA). |
| 5 | GND | Ground reference; requires 0.2 µF decoupling capacitor to VCC per datasheet layout guidance. |
| 6 | CEO (A2) | Chip Enable Output / Device select input; CEO asserts Low after final bit read to enable next EEPROM in cascade; A2 used only during programming. |
| 7 | SER_EN | Serial Enable input; High enables FPGA configuration mode; Low enables 2-wire in-system programming interface. |
| 8 | VCC | +5V supply pin; accepts 4.5V–5.5V range for industrial operation; powers internal charge pump for EEPROM write operations. |
| 9–20 | NC | No-connect pins; electrically isolated and must remain unconnected per design specification. |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability | Enables field firmware updates via 2-wire bus without removing device; SER_EN-controlled entry eliminates need for socketed programming. |
| Cascadable CEO output | Allows chaining with AT17C128/256 devices for larger FPGA configurations; AT17C65-10NI serves only as terminal node-no CEO-driven cascading input. |
| Emulation of AT24CXXX EEPROMs | Supports legacy system integration where AT24C02/AT24C04 protocols are expected; simplifies migration from generic serial EEPROMs. |
| Low-power CMOS process | Reduces active current to 10 mA and standby to ≤150 µA-critical for thermally constrained industrial enclosures and fanless designs. |
| Simple FPGA interface | Requires only four signals (CLK, DATA, CE, RESET/OE) for full configuration; no glue logic or level-shifting needed for Xilinx/Altera FPGAs. |
Applications
| Industrial PLC Configuration | Xilinx XC4000 FPGA Boot |
|---|---|
|
Use Scenario: Reconfigurable logic controller in factory automation requiring cold-start FPGA bitstream reload after power loss. IC Role / Device Role / Timing Role: Serial configuration memory providing deterministic, single-clock-domain bitstream delivery to XC4000's master serial port. Use Value: Guaranteed 64 Kbit storage with 12.5 MHz read speed ensures sub-6 ms boot time; industrial temp rating ensures reliability in uncontrolled cabinet environments. |
Use Scenario: Field-upgradable gate array in test equipment where FPGA logic must be swapped without hardware change. IC Role / Device Role / Timing Role: Standalone configuration source for XC4000 series; uses CEO pin disabled (NC) and RESET/OE tied to FPGA CON for synchronous reset. Use Value: Programmable reset polarity avoids external inverter; WP input protects factory-loaded bitstream from accidental overwrite during service. |
| Altera FLEX® 10K System Boot | Motor Drive FPGA Initialization |
|
Use Scenario: Embedded motion controller using EPF10K10 FPGA whose configuration must survive repeated thermal cycling. IC Role / Device Role / Timing Role: Master-serial mode configurator delivering bitstream on power-up; CE driven by FPGA INIT_DONE to manage configuration sequence. Use Value: 5V ±10% supply tolerance accommodates brown-out conditions common in motor drive power supplies; NC pins simplify PCB routing. |
Use Scenario: Real-time servo control system requiring deterministic FPGA startup within 10 ms of power application. IC Role / Device Role / Timing Role: Dedicated configuration memory interfaced directly to FPGA CCLK and DIN; SER_EN hardwired to VCC for always-active config mode. Use Value: 150 µA standby current minimizes leakage impact on auxiliary power rail; industrial temperature rating matches IGBT driver thermal profile. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV65-10NI | 3.3V operation (3.0–3.6V), lower max clock (10 MHz), reduced ICCA (5 mA), same 64 Kbit density and PLCC-20 package. | Required when main system uses 3.3V logic; not suitable for 5V-only FPGA families like older Xilinx XC3000. | Select AT17LV65-10NI only if target FPGA supports 3.3V configuration interface and system supply is strictly 3.3V. |
| XCF01SVO20C | Xilinx proprietary 1-Mbit PROM; 3.3V-only, SO20 package, no CEO or SER_EN pins; requires Xilinx-specific programming tools. | Designed exclusively for Xilinx FPGAs; lacks in-system programmability and multi-vendor FPGA compatibility. | Choose XCF01SVO20C only for new Xilinx-only designs where higher density and vendor-integrated toolchain outweigh flexibility needs. |
Compared with AT17LV65-10NI and XCF01SVO20C, the AT17C65-10NI offers broader FPGA vendor support (Xilinx, Altera, Atmel, Lucent), 5V tolerance for legacy systems, and SER_EN-enabled field reprogramming-making it optimal for mixed-vendor industrial platforms requiring long-term supply stability.
Availability
AT17C65-10NI is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, motor drive controllers, and reconfigurable embedded systems requiring stable component supply across extended lifecycle commitments.
Supply support for AT17C65-10NI 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 product support, documentation, and manufacturing continuity for the AT17 family of FPGA configuration EEPROMs.
The AT17 Series was originally developed by Atmel to provide cost-effective, pin-compatible serial configuration memory for SRAM-based FPGAs across Xilinx, Altera, and Atmel's own FPGA product lines-emphasizing ease of integration and in-system programmability.
FAQ
What is the operating voltage range for AT17C65-10NI?
The AT17C65-10NI operates over 4.5V to 5.5V at industrial temperature (–40°C to +85°C), complying with 5V ±10% specification. This range ensures robust performance in industrial power environments with ripple and transient variation. The AT17C65-10NI does not support 3.3V operation-use AT17LV65-10NI for 3.3V systems.
Can AT17C65-10NI be used in a cascaded configuration chain?
No-AT17C65-10NI can only function as a standalone device or as the final device in a cascade chain. Its CEO output is functional, but it lacks the input capability to accept CEO from a prior device. Cascading requires AT17C128 or AT17C256 as upstream devices; AT17C65-10NI may serve only as the terminal node.
How is reset polarity programmed in AT17C65-10NI?
Reset polarity (active-High or active-Low) is programmed into a dedicated EEPROM byte using industry-standard programmers or Atmel's ATDH2200E kit. Once set, the AT17C65-10NI interprets the (WP) RESET/OE pin accordingly-eliminating need for external inverters. The AT17C65-10NI retains this setting across power cycles.
Which FPGAs are explicitly compatible with AT17C65-10NI?
The AT17C65-10NI is documented as compatible with Xilinx XC3000, XC4000, XC5200, and SPARTAN® families; Altera FLEX® devices; Atmel AT6000 and AT40K; Lucent ORCA®; and Motorola MPA1000 FPGAs. Compatibility is based on master-serial interface timing and signal mapping-not electrical pinout equivalence.
What package type is used for AT17C65-10NI?
The AT17C65-10NI uses a 20-lead Plastic J-Leaded Chip Carrier (PLCC), JEDEC MS-018 AA compliant, with 0.400" body width and J-shaped leads. This package is pin-compatible across the AT17C/LV65/128/256 family and supports both through-hole and surface-mount assembly.
AT17C65-10NI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- Serial EEPROM
- Memory Size:
- 64kb
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT17C65-10NI FAQ
1.How can I place an order for AT17C65-10NI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17C65-10NI 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 AT17C65-10NI reliable?
The price and inventory of AT17C65-10NI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17C65-10NI is usually 5 days.
3.What payment methods are accepted for AT17C65-10NI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17C65-10NI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17C65-10NI?
AT17C65-10NI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17C65-10NI 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 AT17C65-10NI?
For technical support, including AT17C65-10NI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17C65-10NI requirements.
6.How does Aetrix verify that AT17C65-10NI is sourced from the original manufacturer or authorized distributors?
All AT17C65-10NI 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 AT17C65-10NI meets industry standards.
7.What is the process for return or replacement of AT17C65-10NI?
All AT17C65-10NI units undergo pre-shipment inspection (PSI). If there is an issue with AT17C65-10NI, 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 AT17C65-10NI part is unused and in its original packaging.
Return procedure for AT17C65-10NI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17C65-10NI Tags
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EPCQ4ASI8N
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