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AMD XCS20-3TQ144C
- Part No.:
- XCS20-3TQ144C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 144-LQFP
- Datasheet:
-
XCS20-3TQ144C.pdf
- Description:
- IC FPGA 113 I/O 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,306
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Product details
Overview
XCS20-3TQ144C from AMD (formerly Xilinx) is a Spartan-2 family FPGA with 20,000 system gates, 144-pin TQFP package, 3.3V I/O voltage, and -3 speed grade. It implements synchronous digital logic in embedded control, industrial interface, and communication protocol bridging applications.
For engineers reviewing the XCS20-3TQ144C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (118 user I/Os), configuration mode (JTAG/Slave Serial), internal RAM (288 bits), and logic cell count (1,472 CLBs).
Technical Context
The XCS20-3TQ144C uses SRAM-based configurable logic blocks (CLBs) with four-input LUTs and flip-flops per slice, supporting synchronous design with global clock routing and dedicated carry chains. It integrates distributed RAM and shift registers within CLBs for data path functions.
Configuration is performed via JTAG boundary-scan or serial PROM, with support for in-system programmability. The device operates at 3.3V core and I/O supply, with LVCMOS/LVTTL-compatible inputs and outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 system gates - defines maximum combinational logic density for gate-equivalent synthesis |
| CLBs | 1,472 configurable logic blocks - each contains two function generators and storage elements for sequential logic |
| User I/O Pins | 118 - supports parallel bus interfaces, sensor arrays, and multi-channel control signals |
| Internal RAM | 288 bits distributed RAM - usable as small FIFOs, register files, or state storage without external memory |
| Speed Grade | -3 - guarantees 10 ns CLB propagation delay and 125 MHz maximum system clock frequency |
| I/O Standard | LVCMOS/LVTTL - ensures interoperability with 3.3V microcontrollers, ADCs, and digital peripherals |
Pinout & Package
144-pin Thin Quad Flat Pack (TQFP), 20 × 20 mm body, 0.5 mm pitch, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 (TCK) | JTAG Test Clock | Drives synchronous boundary-scan test and configuration clock input |
| PIN 2 (TMS) | JTAG Test Mode Select | Controls JTAG state machine transitions during programming or debug |
| PIN 3 (TDI) | JTAG Test Data In | Serial input for configuration bitstream or test data during JTAG load |
| PIN 4 (TDO) | JTAG Test Data Out | Serial output for readback, verification, or boundary-scan diagnostics |
| PIN 5 (INIT) | Configuration Initialization | Active-low open-drain signal indicating configuration status and error flag |
| PIN 6 (PROGRAM) | Configuration Reset | Active-low input that clears configuration memory and resets internal logic |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | 1,472 CLBs with dual 4-LUTs and flip-flops enable efficient implementation of finite state machines and pipelined datapaths |
| Distributed RAM | 288 bits of fast, low-latency RAM embedded in CLBs for register file or buffer use without external memory access |
| Global Clock Networks | Four dedicated low-skew global clock lines reduce timing uncertainty across large logic regions |
| JTAG Boundary-Scan Support | IEEE 1149.1 compliance enables in-circuit testing, debugging, and reconfiguration without external programmers |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Protocol Bridge |
|---|---|
Use Scenario: Adding isolated digital I/O channels to programmable logic controllers using RS-485 or CAN physical layers. IC Role / Device Role / Timing Role: FPGA fabric implements custom logic for signal conditioning, debounce, and protocol framing. Use Value: Enables field-upgradable I/O mapping and real-time response under 1 µs latency using on-chip CLBs and fast carry chains. | Use Scenario: Translating between ISA-bus peripherals and modern microcontroller buses in retro-computing or test equipment. IC Role / Device Role / Timing Role: FPGA acts as asynchronous bus translator with address decoding and handshaking logic. Use Value: Supports 8-bit/16-bit data widths and variable wait-state insertion via configurable logic, eliminating ASIC redesign. |
| Motor Control Encoder Interface | Low-Cost Video Signal Formatter |
Use Scenario: Capturing quadrature encoder signals from servo motors in HVAC or CNC systems. IC Role / Device Role / Timing Role: FPGA implements high-speed counter, direction detection, and index pulse filtering logic. Use Value: Processes 20 MHz quadrature inputs with sub-cycle resolution using dedicated carry chains and registered outputs. | Use Scenario: Converting parallel RGB pixel data into serialized LVDS or TTL video streams for display modules. IC Role / Device Role / Timing Role: FPGA provides pixel clock domain crossing, sync pulse generation, and data serialization. Use Value: Achieves stable 60 Hz frame rates with precise HSYNC/VSYNC timing using global clock networks and edge-aligned outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA-based logic implementation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCS20-4TQ144C | Faster -4 speed grade (8.5 ns CLB delay); otherwise identical architecture and pinout | Better suited for higher-frequency clock domains or tighter setup/hold margins | Select XCS20-4TQ144C when target system clock exceeds 110 MHz or timing closure requires additional margin |
| XCS10-3TQ144C | Lower density (10,000 gates), 736 CLBs, 216-bit RAM; same package and I/O structure | Appropriate for simpler control logic where full 20K-gate capacity is unused | Choose XCS10-3TQ144C to reduce cost and power when design fits within smaller logic footprint |
Compared with XCS20-4TQ144C and XCS10-3TQ144C, the XCS20-3TQ144C delivers balanced performance for mid-complexity control and interface tasks at lower power than the -4 variant and higher resource headroom than the -10 variant, making it optimal for cost-sensitive industrial designs requiring proven timing closure.
Availability
XCS20-3TQ144C is available at Aetrix Electronics and suitable for industrial automation, legacy system upgrades, and embedded interface development requiring stable component supply over extended production lifecycles.
Supply support for XCS20-3TQ144C 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 acquired Xilinx in 2022 and now develops adaptive computing platforms including FPGAs, adaptive SoCs, and AI engines.
The Spartan-2 family, including XCS20-3TQ144C, was designed for cost-sensitive, high-volume embedded control and interface applications with predictable timing and low-power operation.
FAQ
What is the configuration method supported by the XCS20-3TQ144C?
The XCS20-3TQ144C supports JTAG boundary-scan configuration and Slave Serial mode using an external PROM. Configuration occurs on power-up or after asserting the PROGRAM pin. The XCS20-3TQ144C does not support Master Serial or Microprocessor mode. JTAG is used for both programming and in-circuit debugging.
Does the XCS20-3TQ144C have internal configuration memory?
No, the XCS20-3TQ144C uses external configuration memory. Its SRAM-based architecture requires loading the bitstream at each power-on. The XCS20-3TQ144C relies on JTAG or serial PROM for persistent configuration storage and reloads logic functionality on every reset or power cycle.
What is the maximum operating temperature range for the XCS20-3TQ144C?
The XCS20-3TQ144C is rated for commercial temperature range: 0°C to +70°C ambient. It is not specified for industrial (-40°C to +85°C) or extended temperature operation. Thermal derating is required above 70°C ambient, and the XCS20-3TQ144C must be operated within its validated thermal envelope to ensure timing compliance.
Can the XCS20-3TQ144C drive 5V-tolerant I/Os?
No, the XCS20-3TQ144C I/Os are LVCMOS/LVTTL compliant at 3.3V only and are not 5V-tolerant. Driving or receiving 5V signals directly risks damage or incorrect logic levels. Level-shifting circuitry is required when interfacing with 5V peripherals, and the XCS20-3TQ144C must be powered at 3.3V for proper operation.
How many global clock lines does the XCS20-3TQ144C provide?
The XCS20-3TQ144C provides four dedicated global clock lines with low skew and high fanout. These lines route to all CLBs and I/O blocks, enabling synchronous design across large logic regions. This clock distribution capability is integral to the XCS20-3TQ144C architecture and supports multi-domain clocking without external PLLs.
XCS20-3TQ144C 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:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 144-TQFP (20x20)
XCS20-3TQ144C FAQ
1.How can I place an order for XCS20-3TQ144C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20-3TQ144C 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 XCS20-3TQ144C reliable?
The price and inventory of XCS20-3TQ144C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20-3TQ144C is usually 5 days.
3.What payment methods are accepted for XCS20-3TQ144C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20-3TQ144C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20-3TQ144C?
XCS20-3TQ144C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20-3TQ144C 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 XCS20-3TQ144C?
For technical support, including XCS20-3TQ144C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20-3TQ144C requirements.
6.How does Aetrix verify that XCS20-3TQ144C is sourced from the original manufacturer or authorized distributors?
All XCS20-3TQ144C 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 XCS20-3TQ144C meets industry standards.
7.What is the process for return or replacement of XCS20-3TQ144C?
All XCS20-3TQ144C units undergo pre-shipment inspection (PSI). If there is an issue with XCS20-3TQ144C, 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 XCS20-3TQ144C part is unused and in its original packaging.
Return procedure for XCS20-3TQ144C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XCS20-3TQ144C Tags
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