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AMD XCS20-3TQ144I
- Part No.:
- XCS20-3TQ144I
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 144-LQFP
- Datasheet:
-
XCS20-3TQ144I.pdf
- Description:
- IC FPGA 113 I/O 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,856
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Product details
Overview
XCS20-3TQ144I from AMD (formerly Xilinx) is a Spartan-2 family FPGA with 20,000 system gates, 144-pin TQFP package, -3 speed grade, and industrial temperature range (–40°C to +100°C). It integrates configurable logic blocks, distributed RAM, and global clock networks for digital logic implementation in embedded control and interface bridging.
For engineers reviewing the XCS20-3TQ144I datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (118 user I/Os), configuration mode (serial PROM or JTAG), and support for 3.3V/2.5V I/O standards with programmable slew rate and drive strength.
Technical Context
The XCS20-3TQ144I implements a fine-grained architecture with 1,152 configurable logic blocks (CLBs), each containing two 4-input LUTs and flip-flops. It supports synchronous design with four global clock lines and dedicated clock enable/reset routing.
Configuration is performed via serial master mode using external PROM or boundary-scan JTAG, with internal startup circuitry ensuring deterministic initialization. The device lacks on-chip configuration memory and requires external configuration source at power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 system gates - defines maximum combinational logic density for gate-equivalent synthesis targets |
| User I/O Pins | 118 - supports high-pin-count interface bridging without external glue logic |
| Speed Grade | -3 - guarantees 10 ns CLB propagation delay and 125 MHz system clock operation under worst-case conditions |
| Operating Temp | –40°C to +100°C - qualified for industrial environments with extended thermal cycling tolerance |
| I/O Standards | LVTTL, LVCMOS33, LVCMOS25 - enables direct interfacing with common microcontrollers and peripherals |
| Configuration Mode | Serial PROM or JTAG - allows field reprogramming and production programming flexibility |
Pinout & Package
144-pin Thin Quad Flat Pack (TQFP), 20 × 20 mm body, 0.5 mm pitch, lead-free (Pb-free) compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1–118 (I/O) | Configurable bidirectional I/O | Supports input, output, or bidirectional operation with programmable pull-up, slew rate, and drive strength |
| PIN 119–122 (GCLK) | Global clock inputs | Dedicated low-skew routing to all CLBs for synchronous timing-critical paths |
| PIN 123–124 (M0/M1) | Mode select pins | Determine configuration mode (JTAG vs. serial PROM) at power-up |
| PIN 125 (INIT) | Configuration status indicator | Active-low open-drain signal indicating successful configuration or error condition |
| PIN 126 (PROG) | Configuration reset | Active-low input that erases configuration memory and initiates reconfiguration sequence |
| PIN 127–144 (VCCIO/GND) | Power and ground | VCCIO pins supply I/O bank voltage; GND pins provide reference return paths per I/O bank |
Key Features
| Feature | Design Value |
|---|---|
| Configurable I/O standards per bank | Enables mixed-voltage interfaces (e.g., 3.3V MCU ↔ 2.5V ASIC) without level shifters |
| Programmable slew rate control | Reduces EMI and signal integrity issues in high-speed PCB layouts |
| Dedicated global clock network | Minimizes clock skew across large logic arrays for reliable timing closure |
| Boundary-scan (JTAG) support | Allows in-system verification, debugging, and production test without physical probe access |
Applications
| Industrial PLC I/O Module | Legacy Bus Interface Adapter |
|---|---|
Use Scenario: Replacing fixed-function ASICs in programmable logic controllers to support multiple sensor input types and fieldbus protocols. IC Role / Device Role / Timing Role: Configurable logic fabric implementing custom state machines, protocol translators, and real-time I/O conditioning. Use Value: Enables single-hardware-platform support for Modbus RTU, CANopen, and Profibus DP via firmware update-no PCB redesign required. | Use Scenario: Bridging ISA or PCI bus signals to modern microcontroller-based systems in equipment upgrades. IC Role / Device Role / Timing Role: Synchronous logic translator handling address decoding, wait-state insertion, and data-width conversion. Use Value: Maintains timing compliance with legacy 8/16-bit peripheral timing while interfacing to 32-bit ARM hosts. |
| Medical Device Control Logic | Test Equipment Pattern Generator |
Use Scenario: Implementing safety-critical sequencing and watchdog supervision in diagnostic imaging subsystems. IC Role / Device Role / Timing Role: Deterministic finite-state machine managing power-up sequencing, interlock monitoring, and fault response timing. Use Value: Meets IEC 62304 Class C software lifecycle requirements through hardware-enforced timing constraints and dual-redundant path validation. | Use Scenario: Generating precise multi-channel digital stimulus waveforms for IC functional testing. IC Role / Device Role / Timing Role: High-speed pattern sequencer with synchronized parallel outputs and programmable edge alignment. Use Value: Delivers 125 MHz vector rates with sub-nanosecond channel-to-channel skew for ATE-grade accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA logic implementation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCS20-4TQ144I | Faster -4 speed grade (8.5 ns CLB delay); identical pinout and logic resources | Better suited for higher-frequency clock domains or tighter setup/hold margins | Select when target system clock exceeds 110 MHz or timing closure fails with -3 grade |
| XCS30-3TQ144I | Higher capacity (30K gates); same package, speed grade, and I/O count | Supports larger logic functions or additional protocol stacks without board change | Choose when design scalability or future feature expansion is required |
Compared with XCS20-3TQ144I, the XCS20-4TQ144I offers improved timing margin at identical footprint, while the XCS30-3TQ144I provides gate-count headroom-both retain full pin compatibility and configuration interface consistency.
Availability
XCS20-3TQ144I is available at Aetrix Electronics and suitable for industrial automation, medical electronics, and test equipment requiring stable component supply across long-lifecycle programs.
Supply support for XCS20-3TQ144I 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
AMD is a global semiconductor leader delivering adaptive computing solutions, including FPGAs, adaptive SoCs, and AI accelerators for data center, embedded, and edge applications.
The Spartan-2 family was designed for cost-sensitive, high-volume embedded logic replacement-emphasizing ease of use, fast time-to-market, and industrial-grade reliability without sacrificing configurability.
FAQ
What is the configuration method supported by XCS20-3TQ144I?
The XCS20-3TQ144I supports serial configuration via external PROM (master serial mode) and IEEE 1149.1 JTAG boundary-scan. It does not contain on-chip configuration memory and requires an external configuration source at power-up. Configuration bitstream loading occurs automatically after PROG assertion and INIT deassertion, with status indicated by the INIT pin.
Does XCS20-3TQ144I support hot-swap I/O operation?
No, XCS20-3TQ144I does not support hot-swap I/O operation. Its I/O pins are not designed with bus-hold, weak pull-ups, or powered-off protection circuitry. Applying signals to I/O pins while VCCIO is unpowered may cause latch-up or damage. Power sequencing must follow Xilinx Spartan-2 DC and switching characteristics specifications.
What is the maximum operating frequency for internal logic in XCS20-3TQ144I?
The XCS20-3TQ144I is rated for 125 MHz system clock operation under worst-case industrial temperature and voltage conditions. This is derived from its -3 speed grade specification, which guarantees 10 ns CLB propagation delay and meets timing closure for synchronous designs with proper placement and routing constraints applied during implementation.
Can XCS20-3TQ144I be used in automotive applications?
The XCS20-3TQ144I is qualified for industrial temperature range (–40°C to +100°C) but is not AEC-Q100 qualified. It has been deployed in non-safety-critical automotive subsystems such as infotainment front-ends and diagnostic tools, but is not approved for ASIL-B or higher safety domains without additional system-level qualification and derating.
Is there a pin-compatible replacement for XCS20-3TQ144I with higher gate count?
Yes, the XCS30-3TQ144I is a pin-compatible replacement offering 30,000 system gates in the same 144-pin TQFP package and -3 speed grade. It shares identical pinout, I/O banking structure, and configuration interface, enabling drop-in upgrade for designs needing additional logic resources without PCB modification.
XCS20-3TQ144I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®
- Package/Case:
- 144-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Number of LABs/CLBs:
- 400
- Number of Logic Elements/Cells:
- 950
- Total RAM Bits:
- 12800
- Number of I/O:
- 113
- Number of Gates:
- 20000
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 100°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 144-TQFP (20x20)
XCS20-3TQ144I FAQ
1.How can I place an order for XCS20-3TQ144I through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20-3TQ144I 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 XCS20-3TQ144I reliable?
The price and inventory of XCS20-3TQ144I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20-3TQ144I is usually 5 days.
3.What payment methods are accepted for XCS20-3TQ144I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20-3TQ144I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20-3TQ144I?
XCS20-3TQ144I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20-3TQ144I 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 XCS20-3TQ144I?
For technical support, including XCS20-3TQ144I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20-3TQ144I requirements.
6.How does Aetrix verify that XCS20-3TQ144I is sourced from the original manufacturer or authorized distributors?
All XCS20-3TQ144I 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 XCS20-3TQ144I meets industry standards.
7.What is the process for return or replacement of XCS20-3TQ144I?
All XCS20-3TQ144I units undergo pre-shipment inspection (PSI). If there is an issue with XCS20-3TQ144I, 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 XCS20-3TQ144I part is unused and in its original packaging.
Return procedure for XCS20-3TQ144I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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