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Microchip Technology AT17F16-30CU
- Part No.:
- AT17F16-30CU
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 8-TDFN
- Datasheet:
-
AT17F16-30CU.pdf
- Description:
- IC FLASH CONFIG 16M 8LAP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AT17F16-30CU from Microchip Technology (formerly Atmel) is a 16-Mbit in-system programmable serial configuration PROM designed to store FPGA bitstreams for SRAM-based FPGAs including Xilinx Virtex®, Spartan®, and Altera APEX™ devices. It operates at 3.3V ±10%, supports up to 33 MHz serial download, features 5V-tolerant I/O pins, and delivers 10,000 write cycles endurance in an industrial-grade 8-lead LAP package.
For engineers reviewing the AT17F16-30CU datasheet, AT17F16-30CU pinout, AT17F16-30CU application, or AT17F16-30CU equivalent, key selection criteria include FPGA master serial mode compatibility, cascading support via CEO/CE daisy-chain, page-selectable memory partitioning, ISP capability via 2-wire bus, and industrial temperature operation (–40°C to +85°C).
Technical Context
The AT17F16-30CU implements a serial flash memory architecture optimized for FPGA configuration loading in Master Serial mode, where the FPGA's CCLK drives the device's CLK input and reads DATA output directly. Its control logic integrates tri-state buffering, address counter reset via RESET/OE, and automatic power-on reset with READY signal assertion.
It supports two operational modes: SER_EN = High enables FPGA configuration mode with CE/RESET/OE-controlled data streaming; SER_EN = Low activates 2-wire ISP programming using internal charge-pump voltage generation. Page-select functionality (PAGESEL[1:0] + PAGE_EN) partitions the 16-Mbit space into four 4-Mbit pages for multi-bitstream storage without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 16,777,216 × 1-bit (16 Mbit) nonvolatile flash storage for full FPGA configuration bitstreams |
| Supply voltage | 3.3 V ±10% - compatible with standard FPGA I/O rails and eliminates level-shifting requirements |
| Max clock frequency | 33 MHz during configuration (SER_EN = High) - enables fast FPGA startup times |
| Write endurance | 10,000 program/erase cycles - sufficient for development, field updates, and reconfiguration scenarios |
| Operating temperature | –40°C to +85°C - qualified for industrial embedded systems and harsh-environment deployments |
| I/O tolerance | 5V-tolerant inputs - allows direct interfacing with legacy 5V control logic without external clamping |
| Standby current | <2 mA at 3.6 V - minimizes system power draw when FPGA is not actively loading configuration |
Pinout & Package
AT17F16-30CU is housed in an 8-lead Leadless Array Package (LAP), 6 mm × 6 mm × 1.04 mm body, pin-compatible with 8-lead SOIC/VOIC footprints. The package uses exposed metal pads for thermal dissipation and complies with RoHS, Pb-free, and halide-free requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: DATA | Three-state bidirectional data I/O | Drives FPGA DIN during configuration; used as open-collector bi-directional line during ISP programming |
| 2: CLK | Configuration clock input | Synchronized to FPGA CCLK; increments internal address/bit counters for serial readout |
| 3: RESET/OE | Active-Low reset / Active-High output enable | Resets address counter and tri-states DATA on low pulse; enables DATA output when high and CE low |
| 4: CE | Active-Low chip enable | Enables data output and counter increment when low and OE high; forces standby mode when high |
| 5: GND | Ground reference | Reference for all signals; requires 0.2 µF decoupling capacitor to VCC per datasheet recommendation |
| 6: CEO (A2) | Chip enable output / Device select input | CEO: goes low when end-of-memory reached - cascades to next configurator's CE; A2: chip-select during ISP (SER_EN = low) |
| 7: SER_EN | Serial enable input | High = FPGA configuration mode; Low = 2-wire ISP programming mode; tied to VCC for normal operation |
| 8: VCC | Power supply | +3.3 V ±10% supply; includes internal 20 kΩ pull-up resistor |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Enables field firmware updates via 2-wire serial interface without removing device from PCB |
| Cascadable CEO/CE daisy-chain | Supports multi-FPGA configurations or higher-density bitstreams by chaining multiple AT17F16-30CU units |
| Page-selectable memory partitioning | Four independent 4-Mbit pages selectable via PAGESEL[1:0] + PAGE_EN - enables runtime reconfiguration between distinct FPGA designs |
| 5V-tolerant I/O pins | Eliminates need for external level translators when interfacing with 5V system controllers or test equipment |
| Industrial temperature qualification | Guaranteed operation from –40°C to +85°C - suitable for factory automation, transportation, and outdoor infrastructure |
Applications
| Industrial PLC Configuration Storage | FPGA-Based Test Equipment Reconfiguration |
|---|---|
Use Scenario: Programmable logic controllers require reliable, field-upgradable FPGA configurations to adapt to changing I/O modules or control algorithms. IC Role / Device Role / Timing Role: AT17F16-30CU serves as master serial configuration PROM, delivering bitstream to Xilinx Spartan® FPGA upon power-up under industrial ambient conditions. Use Value: Enables zero-downtime FPGA reconfiguration via ISP, reducing maintenance windows and supporting modular hardware design. | Use Scenario: Automated test systems use multiple FPGA configurations to support different DUT interfaces (e.g., PCIe, MIPI, LVDS) within a single chassis. IC Role / Device Role / Timing Role: AT17F16-30CU stores four distinct bitstreams in page-partitioned memory, selected dynamically by host controller via PAGESEL lines. Use Value: Eliminates need for multiple PROMs or external multiplexing logic - reduces BOM count and PCB area while enabling rapid test-mode switching. |
| Avionics Data Acquisition Module | Medical Imaging FPGA Boot Loader |
Use Scenario: Ruggedized flight data recorders use SRAM FPGAs for real-time sensor preprocessing and require certified, long-life configuration storage. IC Role / Device Role / Timing Role: AT17F16-30CU provides radiation-tolerant (industrial-grade) configuration memory for Lucent ORCA® FPGAs operating in extended temperature environments. Use Value: Meets DO-254 traceability requirements via deterministic serial load timing (33 MHz max), verified AC parameters, and RoHS-compliant green packaging. | Use Scenario: MRI and CT scanner subsystems rely on FPGA-accelerated image reconstruction pipelines requiring secure, validated boot sources. IC Role / Device Role / Timing Role: AT17F16-30CU acts as primary configuration source for Xilinx Virtex® FPGAs, with READY signal synchronized to system power sequencing. Use Value: READY pin provides hardware-verified reset completion indication, ensuring FPGA starts configuration only after stable VCC and internal logic initialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Xilinx XC18V02 | 2-Mbit capacity; supports JTAG boundary-scan programming; no page-select or cascading CEO output | Limited to smaller FPGAs (e.g., XC9500 CPLDs); lacks multi-bitstream flexibility and daisy-chain scalability | Select when footprint compatibility with legacy Xilinx toolchains is required and density needs are ≤2 Mbit |
| Microchip (Atmel) AT17LV16-10CU | Same 16-Mbit density but 2.5V core supply; lower max clock (10 MHz); identical LAP package and pinout | Better suited for ultra-low-power battery-operated systems; incompatible with 3.3V-only FPGA I/O domains | Choose only if system-level voltage scaling mandates 2.5V operation and 33 MHz download speed is not required |
Compared with XC18V02 and AT17LV16-10CU, the AT17F16-30CU uniquely combines industrial temperature rating, 33 MHz configuration speed, page-selectable memory, and CEO-driven daisy-chaining - making it optimal for scalable, field-upgradable FPGA systems demanding both performance and robustness.
Availability
AT17F16-30CU is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, avionics data acquisition modules, and medical imaging subsystems requiring stable component supply across extended lifecycle commitments.
Supply support for AT17F16-30CU 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 configurator products. The company specializes in microcontrollers, analog, FPGA configuration solutions, and secure authentication ICs.
The AT17F Series was developed specifically to provide cost-effective, in-system programmable configuration memory for SRAM-based FPGAs across industrial, communications, and instrumentation markets - emphasizing ease of integration, cascading scalability, and field update capability.
FAQ
What is the primary function of the AT17F16-30CU in an FPGA-based system?
The AT17F16-30CU functions as a serial configuration PROM that stores and delivers bitstream data to SRAM-based FPGAs during power-up or reconfiguration. It operates in Master Serial mode, where the FPGA's CCLK controls the AT17F16-30CU's CLK input and reads its DATA output directly - eliminating need for external controllers. Its 16-Mbit capacity supports large Xilinx Virtex® and Altera APEX™ devices, and its industrial temperature rating ensures reliability in demanding environments.
Does the AT17F16-30CU support in-system programming (ISP), and how is it enabled?
Yes, the AT17F16-30CU supports in-system programming via a 2-wire serial interface. ISP is activated by driving the SER_EN pin low, which places the device into programming mode and enables the A2 pin as a chip-select input. Internal charge-pump circuitry generates required programming voltages from the 3.3V supply, so no external high-voltage source is needed. Programming can be performed using the Atmel ATDH2200E system or compatible third-party programmers - all while the AT17F16-30CU remains soldered on the target board.
How does the page-select feature of the AT17F16-30CU improve FPGA system flexibility?
The AT17F16-30CU's page-select feature divides its 16-Mbit memory into four independent 4-Mbit pages using PAGE_EN and PAGESEL[1:0] inputs. This allows a single AT17F16-30CU to store multiple FPGA configurations - for example, different I/O mappings or algorithm variants - and switch between them dynamically via host GPIO control. Because each page has a dedicated address range (e.g., 00000–3FFFFh), the FPGA loads only the selected bitstream without requiring external multiplexers or additional PROMs, simplifying design and reducing BOM cost.
Can multiple AT17F16-30CU devices be cascaded, and what is the role of the CEO pin?
Yes, AT17F16-30CU devices can be cascaded in a daisy-chain configuration using the CEO (Chip Enable Output) and CE (Chip Enable) pins. When the first AT17F16-30CU completes its data stream, its CEO pin goes low, enabling the CE input of the next device in the chain and triggering its DATA output. This allows seamless expansion of configuration memory beyond 16 Mbits or simultaneous configuration of multiple FPGAs. The CEO pin also supports automatic reset synchronization across the chain when RESET/OE is asserted globally.
What are the key electrical and thermal specifications of the AT17F16-30CU's 8-lead LAP package?
The AT17F16-30CU in the 8-lead LAP package (8CN4) measures 6 mm × 6 mm × 1.04 mm and features RoHS-compliant, Pb/halide-free construction. Electrically, it supports 3.3V ±10% supply, 5V-tolerant inputs, and draws less than 2 mA in standby mode. Thermally, while θJC and θJA values are unspecified for this variant, the exposed metal pad design enhances heat dissipation - critical for sustained 33 MHz operation in enclosed industrial enclosures. Its pinout matches 8-lead SOIC footprints, easing migration from legacy designs.
AT17F16-30CU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TDFN
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- FLASH
- Memory Size:
- 16Mb
- Voltage - Supply:
- 2.97V ~ 3.63V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LAP (6x6)
AT17F16-30CU FAQ
1.How can I place an order for AT17F16-30CU through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17F16-30CU 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 AT17F16-30CU reliable?
The price and inventory of AT17F16-30CU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17F16-30CU is usually 5 days.
3.What payment methods are accepted for AT17F16-30CU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17F16-30CU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17F16-30CU?
AT17F16-30CU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17F16-30CU 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 AT17F16-30CU?
For technical support, including AT17F16-30CU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17F16-30CU requirements.
6.How does Aetrix verify that AT17F16-30CU is sourced from the original manufacturer or authorized distributors?
All AT17F16-30CU 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 AT17F16-30CU meets industry standards.
7.What is the process for return or replacement of AT17F16-30CU?
All AT17F16-30CU units undergo pre-shipment inspection (PSI). If there is an issue with AT17F16-30CU, 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 AT17F16-30CU part is unused and in its original packaging.
Return procedure for AT17F16-30CU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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