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AMD XC1702LPC44C
- Part No.:
- XC1702LPC44C
- Manufacturer:
- AMD
- Category:
- Configuration PROMs for FPGAs
- Package:
- -
- Datasheet:
-
XC1702LPC44C.pdf
- Description:
- CONFIG MEMORY, 2MX1, SERIAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,597
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Product details
Overview
XC1702LPC44C from Xilinx is a one-time programmable (OTP) configuration PROM designed to store 2,097,152-bit FPGA bitstreams for Xilinx XC4000XL/XLA, XC4000XV, and Spartan families in Master Serial mode. It operates at 3.0–3.6 V, supports cascading via CEO/CE daisy-chain, features programmable reset polarity, and delivers 45 ns CLK-to-data access with 67 ns minimum clock period.
For engineers reviewing the XC1702LPC44C datasheet, pinout, applications, or equivalent options, key selection criteria include 3.3V-only operation, 44-pin PLCC package compatibility, standby current of 350 µA, cascading support for multi-FPGA systems, and guaranteed 20-year data retention.
Technical Context
The XC1702LPC44C functions as a synchronous serial memory interface: its internal address counter increments on each rising CLK edge when CE and OE are active, outputting configuration data on the DATA pin aligned to CCLK. The RESET/OE pin-programmable as active-High or active-Low-holds the counter at zero and forces DATA into high-impedance state.
In cascaded configurations, the CEO output of the first device drives the CE input of the next; TCAC max is extended to 120 ns due to CEO propagation delay (TOCK ≤30 ns) plus CE-to-data delay (TCCE ≤90 ns). VPP must be tied to VCC during read operation to ensure stable timing and avoid temperature-dependent failures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration capacity | 2,097,152 bits - stores full bitstream for XC4062XL/XLA, XC4085XL/XLA, or XCV200E FPGAs |
| Supply voltage | 3.0–3.6 V - requires dedicated 3.3V rail; VPP must be connected to VCC for reliable read operation |
| Access time | 45 ns TCAC - enables up to 14.9 MHz configuration clock (67 ns min cycle) |
| Standby current | 350 µA - specified with DATA pulled to VCC or GND; reduces system power during FPGA idle states |
| Data retention | 20 years - guaranteed non-volatile storage without refresh; critical for long-lifecycle industrial deployments |
| Operating temperature | 0°C to +70°C - commercial-grade rating suitable for controlled-environment embedded systems |
| Package | 44-pin PLCC (PC44) - surface-mount compatible with standard reflow profiles; 16.59 mm × 16.59 mm footprint |
Pinout & Package
XC1702LPC44C uses a 44-pin Plastic Chip Carrier (PC44) package with 0.050-inch lead pitch. Pin 1 is located at the index corner; pins 1–22 and 24–44 are assigned; pins 23 and 39 are no-connects (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 6–11, 13–17, 19–22, 24–26, 28–38, 40–43 | No-connect (NC) | Internally unconnected; must remain floating or grounded per PCB layout guidelines |
| 3 | RESET/OE | Dual-function pin: programmable as active-High RESET (default) or active-Low OE; driven by FPGA INIT to synchronize counter reset |
| 12 | CE | Chip Enable: High disables counter and forces DATA high-Z; tied to FPGA DONE for automatic disable post-configuration |
| 18, 41 | GND | Ground reference for logic and power; both pins must be connected to system ground plane |
| 27 | CEO | Chip Enable Output: goes Low after terminal count to enable next PROM in cascade chain |
| 35 | VPP | Programming voltage input: must be connected to VCC during read operation; floating VPP causes unpredictable timing behavior |
| 44 | VCC | Positive supply: powers core logic and output drivers; decoupling capacitor required within 1 cm |
| 40 | DATA | Serial data output: connects directly to FPGA DIN pin; high-Z when CE or OE inactive |
| 43 | CLK | Configuration clock input: driven by FPGA CCLK; rising edge advances address counter and triggers DATA output |
Key Features
| Feature | Design Value |
|---|---|
| One-time programmable OTP memory | Eliminates need for external programming hardware in production; bitstream locked permanently after initial burn |
| Single I/O interface | Reduces FPGA pin count usage - only CLK, DATA, CE, and RESET/OE required for full configuration control |
| Cascadable architecture | Enables multi-FPGA systems or large bitstreams using CEO-to-CE daisy-chain without additional glue logic |
| Programmable reset polarity | Supports direct connection to FPGA INIT (active-Low) or system reset (active-High) without external inverters |
| Low-power CMOS process | 350 µA standby current extends battery life in portable FPGA-based instruments and field-deployed controllers |
Applications
| Industrial PLC Configuration | Aerospace Avionics Boot Memory |
|---|---|
Use Scenario: Storing FPGA configuration for motion-control logic in factory automation PLCs requiring field-upgradable firmware. IC Role / Device Role / Timing Role: OTP PROM providing deterministic, glitch-immune boot sequence synchronized to FPGA CCLK in Master Serial mode. Use Value: 20-year data retention ensures firmware integrity across 15+ year equipment lifecycles without periodic reprogramming. | Use Scenario: Configuring radiation-tolerant XCV200E FPGAs in satellite payload subsystems where reboots must recover known-good logic states. IC Role / Device Role / Timing Role: Non-volatile configuration source with programmable RESET/OE polarity enabling safe INIT-driven reset coordination across multiple FPGAs. Use Value: Cascading support allows redundant dual-FPGA architectures using single XC1702LPC44C + XC1701L pair without layout changes. |
| Medical Imaging FPGA Loader | Test Equipment Bitstream Vault |
Use Scenario: Loading real-time image processing pipelines into XCV300E FPGAs inside MRI signal processors requiring certified, tamper-proof configuration storage. IC Role / Device Role / Timing Role: Secure OTP memory preventing unauthorized bitstream modification; VPP-to-VCC tie prevents accidental reprogramming during operation. Use Value: 3.3V-only operation matches medical-grade power supplies; 44-pin PLCC provides mechanical stability under vibration testing. | Use Scenario: Storing validated bitstreams for automated test fixtures used in high-volume ASIC validation labs. IC Role / Device Role / Timing Role: High-reliability configuration PROM enabling rapid FPGA reconfiguration between test vectors without host controller intervention. Use Value: 45 ns TCAC and 67 ns min clock period support >14 MHz CCLK rates, reducing test cycle time by 22% vs. slower PROMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar configuration PROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC1702LVQ44C | Same 2 Mbit capacity and 3.3V operation, but in 44-pin VQFP package with 0.8 mm pitch; 100 µA lower standby current (250 µA) | VQFP offers finer pitch and better thermal dissipation; less robust for high-vibration environments than PLCC | Select when board space is constrained and reflow soldering is available; avoid in mechanically stressed industrial enclosures |
| XC1701LPC44C | 1 Mbit capacity (half), same PC44 package and 3.3V specs; identical AC timing and pinout except reduced memory depth | Suitable only for smaller FPGAs like XC4020XL/XLA or XCV100E; cannot store XC4062XL/XLA bitstreams | Choose for cost-sensitive designs using sub-1Mbit FPGAs; maintains PCB layout compatibility for easy capacity downgrade |
Compared with XC1702LVQ44C and XC1701LPC44C, the XC1702LPC44C uniquely balances mechanical ruggedness (PLCC), full 2 Mbit capacity for mid-tier Xilinx FPGAs, and field-proven reliability in commercial-temperature industrial control systems.
Availability
XC1702LPC44C is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, aerospace avionics, and automated test equipment requiring stable component supply and long-term obsolescence management.
Supply support for XC1702LPC44C 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
Xilinx, now part of AMD, is a pioneer in programmable logic devices, delivering FPGAs, adaptive SoCs, and associated configuration solutions since 1984.
The XC1700L series was engineered specifically to provide low-cost, reliable, one-time programmable configuration storage for Xilinx's 3.3V FPGA families including XC4000XL/XLA, XC4000XV, and early Spartan devices.
FAQ
What is the maximum configuration clock frequency supported by the XC1702LPC44C?
The XC1702LPC44C supports a minimum clock period (TCYC) of 67 ns, enabling a maximum configuration clock frequency of approximately 14.9 MHz. This is derived from the AC specification TCYC min = 67 ns under commercial conditions (0°C to +70°C) with 3.0–3.6 V supply. The actual achievable rate depends on FPGA CCLK driver strength and PCB trace length.
Can the XC1702LPC44C be used with 5V FPGAs?
No, the XC1702LPC44C is a 3.3V-only device (XC1700L series) and is not rated for 5V operation. It must be powered from a 3.0–3.6 V supply. Using it with 5V FPGAs requires level-shifting on CLK, DATA, CE, and RESET/OE signals - but Xilinx does not recommend or characterize this configuration. Use XC1702E-series PROMs for 5V systems.
How is the RESET/OE polarity programmed on the XC1702LPC44C?
The RESET/OE polarity is programmed during device programming using Xilinx Alliance or Foundation software and a compatible programmer (e.g., HW-130). The default is active-High RESET, but active-Low OE is preferred for direct connection to FPGA INIT. Third-party programmers implement polarity inversion differently; consult the programmer's documentation for XC1700L-specific setup.
What happens if VPP is left floating on the XC1702LPC44C during normal operation?
If VPP is left floating during read operation, the XC1702LPC44C may exhibit unpredictable, temperature-dependent timing behavior and severe debugging difficulties. The datasheet mandates connecting VPP to VCC for stable operation. Failure to do so risks incorrect data output or intermittent configuration failure, especially at temperature extremes.
Is the XC1702LPC44C pin-compatible with other XC1700L series PROMs in the same package?
Yes, all XC1700L-series devices in the 44-pin PLCC (PC44) package - including XC1701LPC44C, XC1702LPC44C, XC1704LPC44C, and XC17512LPC44C - share identical pinouts and electrical characteristics. They differ only in configuration bit capacity and corresponding memory depth, enabling drop-in replacements where bitstream size permits.
XC1702LPC44C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Programmable Type:
- -
- Memory Size:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
XC1702LPC44C FAQ
1.How can I place an order for XC1702LPC44C through Aetrix?
Please submit a Request for Quotation (RFQ) for XC1702LPC44C 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 XC1702LPC44C reliable?
The price and inventory of XC1702LPC44C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC1702LPC44C is usually 5 days.
3.What payment methods are accepted for XC1702LPC44C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC1702LPC44C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC1702LPC44C?
XC1702LPC44C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC1702LPC44C 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 XC1702LPC44C?
For technical support, including XC1702LPC44C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC1702LPC44C requirements.
6.How does Aetrix verify that XC1702LPC44C is sourced from the original manufacturer or authorized distributors?
All XC1702LPC44C 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 XC1702LPC44C meets industry standards.
7.What is the process for return or replacement of XC1702LPC44C?
All XC1702LPC44C units undergo pre-shipment inspection (PSI). If there is an issue with XC1702LPC44C, 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 XC1702LPC44C part is unused and in its original packaging.
Return procedure for XC1702LPC44C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XC1702LPC44C 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
Microchip Technology
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EPCQ16ASI8N
Intel
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AT17LV010-10PU
Microchip Technology
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EPCQ32ASI8N
Intel
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EPCQ64ASI16N
Intel
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EPCQ128ASI16N
Intel
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AT17LV512A-10JU
Microchip Technology
-
AT17LV512-10JU
Microchip Technology
-
AT17LV010-10JU
Microchip Technology
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