My Inquiry
My Account
Microchip Technology AT17N040-10TQI
- Part No.:
- AT17N040-10TQI
- Manufacturer:
- Microchip Technology
- Category:
- Configuration PROMs for FPGAs
- Package:
- 44-TQFP
- Datasheet:
-
AT17N040-10TQI.pdf
- Description:
- IC FPGA 4M CONFIG MEM 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,427
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT17N040-10TQI from Microchip Technology (formerly Atmel) is a 4-Mbit serial EEPROM FPGA configuration memory designed for Master Serial mode loading of Spartan-II, Spartan-IIE, and Spartan XL FPGAs. It operates at 3.3V ±10%, supports industrial temperature range (−40°C to +85°C), features 44-lead TQFP packaging, and delivers 15 MHz maximum clock frequency with ≤60 ns CE-to-data delay.
For engineers reviewing the AT17N040-10TQI datasheet, AT17N040-10TQI pinout, AT17N040-10TQI application, or AT17N040-10TQI equivalent, this device serves as a drop-in replacement for Xilinx XC17SXXXA/L PROMs in legacy FPGA configuration systems requiring reliable nonvolatile storage, low-power standby operation (<200 µA), and compatibility with standard ISP programming tools.
Technical Context
The AT17N040-10TQI implements a serial-access architecture synchronized to an external FPGA-provided CCLK signal, enabling direct bitstream loading without host controller intervention. Its internal address counter and tri-state DATA output are controlled via RESET/OE and CE pins, with SER_EN selecting between normal FPGA loading (SER_EN = VCC) and Two-Wire ISP programming (SER_EN = Low).
It uses a low-power CMOS EEPROM process with guaranteed 10 write cycles and 20-year data retention at 85°C. Standby current is 200 µA (industrial), and active supply current is 5 mA at 3.3V - optimized for power-constrained embedded reconfiguration systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 × 1-bit (4 Mbit) - stores full configuration bitstream for mid-size Spartan-II/XL FPGAs |
| Supply Voltage | 3.3V ±10% - compatible with standard 3.3V FPGA I/O rails and eliminates level-shifting needs |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and telecom equipment |
| Max Clock Frequency | 15 MHz - enables fast configuration time (~267 ms for full 4-Mbit load at 15 MHz) |
| Standby Current | 200 µA - minimizes system power during FPGA idle or reset states |
| Data Retention | 20 years at 85°C - ensures long-term reliability in thermally stressed environments |
| Write Endurance | 10 write cycles - sufficient for factory programming and limited field updates |
Pinout & Package
AT17N040-10TQI is housed in a 44-lead Thin Quad Flat Package (TQFP), 10 mm × 10 mm body, 1.0 mm thickness, 0.8 mm lead pitch (JEDEC MS-026 ACB). Pin 1 identifier located at top-left corner with 0°–7° chamfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DATA (Pin 40) | Bi-directional serial I/O | Three-state open-collector output during FPGA read; used as input during ISP programming |
| CLK (Pin 43) | Serial clock input | Synchronizes internal address/bit counter; driven by FPGA CCLK in Master Serial mode |
| RESET/OE (Pin 13) | Active-Low reset / Active-High output enable | Resets address counter on low pulse; enables DATA driver when high and CE low |
| CE (Pin 15) | Chip enable (active low) | Disables counters and forces DATA into high-impedance state when high - enters 200 µA standby mode |
| VCC (Pin 38) | Power supply | 3.3V ±10% main supply; requires local 0.2 µF decoupling to GND |
| VCC(SER_EN) (Pin 35) | Serial enable control | Must be tied to VCC for FPGA configuration; pulled low to enter Two-Wire ISP programming mode |
| GND (Pin 18) | Ground reference | Primary ground return path; critical for noise immunity in high-speed serial timing |
| DC (Pins 21, 23) | Die connect (no external connection) | Internally bonded to die substrate - must remain unconnected per design specification |
Key Features
| Feature | Design Value |
|---|---|
| Pin compatibility with Xilinx XC17SXXXA/L PROMs | Enables drop-in replacement in existing Spartan-II/XL PCB designs without layout changes |
| Two-Wire Serial ISP programming mode | Allows in-system reprogramming via dedicated SER_EN control - no socket removal required |
| Low-power standby mode (200 µA) | Reduces system-level quiescent power in always-on or battery-backed FPGA platforms |
| Industrial temperature qualification (−40°C to +85°C) | Supports deployment in harsh environments including base stations, motor drives, and industrial controllers |
| Guaranteed 20-year data retention at 85°C | Meets long-lifecycle requirements for infrastructure equipment with >10-year service life |
Applications
| Base Station FPGA Configuration | Industrial PLC Reconfiguration |
|---|---|
Use Scenario: Loading configuration bitstreams into Spartan-II FPGAs used in wireless baseband processing modules during cold start or firmware update. IC Role / Device Role / Timing Role: Serial configuration memory providing synchronous bitstream delivery under FPGA CCLK control in Master Serial mode. Use Value: Ensures deterministic boot timing and eliminates need for external microcontroller coordination - reducing BOM count and board space. | Use Scenario: Storing multiple FPGA configurations for runtime reconfiguration in programmable logic controllers handling diverse I/O modules. IC Role / Device Role / Timing Role: Nonvolatile storage enabling fast, repeatable FPGA reloads after power cycle or watchdog reset. Use Value: Guarantees <200 µA standby draw and 20-year data integrity - critical for sealed, fanless enclosures operating continuously for years. |
| Legacy Test Equipment Upgrade | Avionics FPGA Boot Memory |
Use Scenario: Replacing obsolete Xilinx XC17S040 PROMs in aging ATE systems where redesign is cost-prohibitive. IC Role / Device Role / Timing Role: Pin-compatible EEPROM acting as direct functional substitute with identical timing and interface behavior. Use Value: Eliminates PCB rework while maintaining full compliance with original timing specs (TCAC ≤60 ns, TOE ≤55 ns). | Use Scenario: Providing certified configuration storage for Spartan-XL FPGAs in airborne data acquisition units subject to DO-254 requirements. IC Role / Device Role / Timing Role: Radiation-tolerant (non-SEU-sensitive) nonvolatile memory storing golden configuration image. Use Value: Delivers 10-write endurance and 85°C-rated data retention - satisfying extended mission duration and thermal cycling validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA configuration memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT17LV040-10TQI | Lower 2.7V–3.6V supply range; improved 100 µA standby current; same 4-Mbit density and TQFP-44 package | Preferred for new designs targeting wider voltage margin or lower power; not recommended for legacy 3.3V-only systems with tight noise margins | Select AT17LV040-10TQI if upgrading to newer Atmel/Microchip silicon with enhanced voltage flexibility and reduced standby draw. |
| Xilinx XC17S040D | OTP PROM (one-time programmable); no ISP capability; identical pinout and AC timing; requires factory programming only | Suitable only for fixed-configuration deployments where field updates are unnecessary; lacks SER_EN-controlled reprogrammability | Choose XC17S040D only when configuration immutability is required and in-system reprogramming is excluded from system requirements. |
Compared with AT17N040-10TQI, AT17LV040-10TQI offers broader voltage tolerance and lower standby current but shares identical footprint and timing - making it ideal for migration paths. XC17S040D provides pin-identical OTP functionality but removes field-programmability, limiting use to static deployments.
Availability
AT17N040-10TQI is available at Aetrix Electronics and suitable for industrial control systems, telecommunications infrastructure, and legacy FPGA-based test equipment requiring stable component supply and long-term lifecycle support.
Supply support for AT17N040-10TQI 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 FPGA configuration products, including documentation, programming tools, and quality assurance.
The AT17N series was developed specifically to provide cost-effective, pin-compatible EEPROM alternatives to Xilinx OTP PROMs for Spartan-family FPGA configuration - emphasizing ease of integration, industrial reliability, and ISP capability.
FAQ
What is the primary function of the AT17N040-10TQI in an FPGA system?
The AT17N040-10TQI serves as a serial configuration memory that stores and delivers the bitstream to SRAM-based FPGAs such as Spartan-II, Spartan-IIE, and Spartan XL during power-up or reset. It operates in Master Serial mode, where the FPGA generates the clock (CCLK) and controls the AT17N040-10TQI via CE and RESET/OE signals to initiate and synchronize configuration. Its 4-Mbit capacity supports medium-complexity FPGA designs without external logic.
Is the AT17N040-10TQI pin-compatible with Xilinx XC17S040 devices?
Yes, the AT17N040-10TQI is explicitly designed to be pin-compatible with Xilinx XC17SXXXA and XC17SXXXXL PROMs, including the XC17S040. This compatibility extends to identical pin functions, electrical characteristics, and timing parameters - allowing direct substitution in existing PCB layouts using the 44-lead TQFP package. No schematic or layout modifications are required for replacement.
How does the SER_EN pin affect the operation of the AT17N040-10TQI?
The SER_EN pin (Pin 35) determines the operational mode of the AT17N040-10TQI: when held high (tied to VCC), it enables normal FPGA configuration mode; when pulled low, it activates the Two-Wire Serial ISP programming mode. In ISP mode, the device accepts in-system programming commands without requiring removal from the board - a key advantage over OTP PROMs like XC17S040. SER_EN must never float and must be actively driven.
What are the power consumption characteristics of the AT17N040-10TQI in active and standby modes?
In active configuration mode, the AT17N040-10TQI draws 5 mA typical supply current at 3.3V. In standby mode - activated by holding CE high - it consumes just 200 µA (industrial grade), significantly reducing system-level power during FPGA idle periods. This low standby current is achieved through internal circuit gating and is specified across the full −40°C to +85°C temperature range.
Can the AT17N040-10TQI be programmed using standard industry tools?
Yes, the AT17N040-10TQI supports programming via industry-standard programmers, Atmel's ATDH2200E Programming Kit, and Atmel's ATDH2225 ISP Cable. It also accepts factory programming. The Two-Wire Serial ISP mode (enabled by SER_EN = Low) allows field updates without removing the device from the PCB - unlike OTP alternatives such as XC17S040, which require socket programming prior to assembly.
AT17N040-10TQI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- Serial EEPROM
- Memory Size:
- 4Mb
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
AT17N040-10TQI FAQ
1.How can I place an order for AT17N040-10TQI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT17N040-10TQI 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 AT17N040-10TQI reliable?
The price and inventory of AT17N040-10TQI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT17N040-10TQI is usually 5 days.
3.What payment methods are accepted for AT17N040-10TQI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT17N040-10TQI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT17N040-10TQI?
AT17N040-10TQI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT17N040-10TQI 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 AT17N040-10TQI?
For technical support, including AT17N040-10TQI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT17N040-10TQI requirements.
6.How does Aetrix verify that AT17N040-10TQI is sourced from the original manufacturer or authorized distributors?
All AT17N040-10TQI 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 AT17N040-10TQI meets industry standards.
7.What is the process for return or replacement of AT17N040-10TQI?
All AT17N040-10TQI units undergo pre-shipment inspection (PSI). If there is an issue with AT17N040-10TQI, 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 AT17N040-10TQI part is unused and in its original packaging.
Return procedure for AT17N040-10TQI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT17N040-10TQI Tags
-
AT17LV512A-10PU
Microchip Technology
-
EPCQ4ASI8N
Intel
-
AT17LV256-10PU
Microchip Technology
-
AT17LV256-10NU
Microchip Technology
-
EPCQ16ASI8N
Intel
-
AT17LV010-10PU
Microchip Technology
-
EPCQ32ASI8N
Intel
-
EPCQ64ASI16N
Intel
-
EPCQ128ASI16N
Intel
-
AT17LV512A-10JU
Microchip Technology
-
AT17LV512-10JU
Microchip Technology
-
AT17LV010-10JU
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
