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AMD XCS20XL-4TQ144C
- Part No.:
- XCS20XL-4TQ144C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 144-LQFP
- Datasheet:
-
XCS20XL-4TQ144C.pdf
- Description:
- IC FPGA 113 I/O 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,227
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Product details
Overview
XCS20XL-4TQ144C from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 20,000 system gates, 144-pin TQFP package, -4 speed grade, and commercial temperature range (0°C to 70°C); used in industrial control logic, legacy interface bridging, and low-power reconfigurable I/O subsystems.
For engineers reviewing the XCS20XL-4TQ144C datasheet, pinout, applications, or equivalent options, key selection criteria include system gate count, I/O count, speed grade timing, TQFP thermal profile, and legacy Spartan-XL configuration compatibility.
Technical Context
The XCS20XL-4TQ144C implements configurable logic blocks (CLBs) with dedicated carry logic and distributed RAM, supporting synchronous design with global clock routing and up to 100 MHz system clock operation. It uses SRAM-based configuration with external PROM or microprocessor loading.
Configuration is performed via JTAG boundary-scan (IEEE 1149.1) or master serial mode using on-chip oscillator; no internal configuration memory - requires external bitstream source at power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 usable system gates - defines maximum combinational/sequential logic density for control-state machines and glue logic replacement. |
| I/O Pins | 118 user-configurable I/Os - supports parallel bus interfacing, level translation, and multi-voltage domain signaling (3.3V/5V tolerant). |
| Speed Grade | -4 - guarantees 100 MHz maximum clock frequency for CLB-to-CLB paths under worst-case commercial conditions. |
| Package | 144-pin TQFP (20 × 20 mm, 0.5 mm pitch) - surface-mount compatible with standard reflow profiles; no lead-free option specified. |
| Operating Temp | 0°C to +70°C - validated for non-automotive industrial enclosures without forced cooling or extended thermal management. |
| Configuration | SRAM-based, external bitstream - requires persistent PROM or processor-initiated reload on each power cycle. |
Pinout & Package
144-pin Thin Quad Flat Package (TQFP), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed pad not present. Pinout conforms to Xilinx Spartan-XL family standard layout for TQFP-144.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Multiple dedicated pins (e.g., A2, A14, B1, N14) - required for signal integrity and power plane decoupling. |
| VCCINT | Core supply | 2.5 V ± 5% for internal logic - must be independently regulated and filtered from I/O supply. |
| VCCO | I/O supply | 3.3 V or 5.0 V selectable per bank - enables mixed-voltage interface without level shifters. |
| TCK/TMS/TDI/TDO | JTAG interface | IEEE 1149.1 boundary-scan test and configuration - supports in-system programming and debug visibility. |
| PROGRAM_B | Initiate config | Active-low asynchronous reset of configuration memory - triggers reload from external source. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated carry chain | Enables high-speed arithmetic (e.g., counters, adders) without consuming general-purpose logic resources. |
| Distributed RAM | Each CLB provides 16 bits of fast synchronous RAM - usable as shift registers or small lookup tables without block RAM overhead. |
| Global clock network | Low-skew routing to all CLBs - supports synchronous state machines with deterministic timing closure up to 100 MHz. |
| 5V-tolerant I/Os | Allows direct connection to legacy 5V peripherals without external level translators in mixed-voltage systems. |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridge |
|---|---|
Use Scenario: Adding isolated digital I/O channels to programmable logic controllers using existing 24V DC field wiring. IC Role / Device Role / Timing Role: Reconfigurable logic glue between microcontroller and opto-isolated input/output banks. Use Value: Reduces BOM count by replacing discrete TTL buffers and latch arrays while maintaining deterministic scan-cycle timing. | Use Scenario: Translating between ISA-bus peripherals and modern microcontroller buses in retro-computing or test equipment upgrades. IC Role / Device Role / Timing Role: Protocol-aware bridge implementing address decode, strobe synchronization, and data width conversion. Use Value: Eliminates custom PCB redesign by embedding timing-critical handshake logic directly in XCS20XL-4TQ144C configuration. |
| Low-Power Sensor Hub | Configurable Serial Interface Adapter |
Use Scenario: Aggregating analog sensor outputs and digital status signals in battery-powered environmental monitoring nodes. IC Role / Device Role / Timing Role: Glue logic and state machine managing ADC sequencing, SPI readouts, and wake-on-event detection. Use Value: Enables sub-100 µA standby current via selective CLB power gating and clock disable - verified in Xilinx XAPP052. | Use Scenario: Adapting proprietary 4-wire serial protocols to standard UART or SPI interfaces in medical instrumentation. IC Role / Device Role / Timing Role: Bit-level protocol engine with programmable framing, parity insertion, and baud rate generation. Use Value: Avoids ASIC development cycle by allowing field-upgradable protocol definitions stored in external PROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA-based logic replacement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCS20-4TQ144C | No XL-series low-power enhancements; higher static current (≈2×) and reduced I/O drive strength. | Limited suitability for battery-powered or thermally constrained designs. | Select only if legacy board layout mandates identical timing model and no power budget constraints exist. |
| XCS30XL-4TQ144C | 30,000 system gates, same package and speed grade - larger logic capacity with identical pinout and voltage requirements. | Supports more complex state machines and wider datapaths without changing PCB footprint. | Preferred when future firmware expansion or added peripheral integration is anticipated. |
Compared with XCS20XL-4TQ144C, the XCS20-4TQ144C trades power efficiency for legacy compatibility, while the XCS30XL-4TQ144C offers scalable logic density within identical thermal and layout constraints - enabling design reuse across performance tiers.
Availability
XCS20XL-4TQ144C is available at Aetrix Electronics and suitable for industrial control systems, legacy equipment refurbishment, and low-power reconfigurable I/O modules requiring stable component supply over extended production lifecycles.
Supply support for XCS20XL-4TQ144C 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 maintains legacy Spartan product lines for long-lifecycle industrial applications. Xilinx pioneered FPGA architecture for reconfigurable digital logic.
The Spartan-XL family was designed specifically for cost-sensitive, low-power, high-reliability applications where ASIC development cycles were prohibitive - targeting industrial automation, test equipment, and communications infrastructure.
FAQ
What is the configuration method supported by XCS20XL-4TQ144C?
XCS20XL-4TQ144C supports JTAG (IEEE 1149.1) boundary-scan configuration and master serial mode using its internal oscillator. It does not contain on-chip configuration memory and requires an external PROM or microprocessor to load the bitstream at power-up. The XCS20XL-4TQ144C datasheet specifies mandatory use of XC18V00-series or compatible serial PROMs for reliable initialization.
Does XCS20XL-4TQ144C support 5V-tolerant I/Os?
Yes, XCS20XL-4TQ144C features 5V-tolerant I/Os across all banks when VCCO is set to 3.3V, enabling direct interfacing with legacy 5V TTL and CMOS devices without external level shifters. This capability is documented in the Spartan-XL DC and Switching Characteristics datasheet (DS004, Rev 4.1), Table 12.
What is the maximum operating frequency of XCS20XL-4TQ144C?
The XCS20XL-4TQ144C is rated for a maximum system clock frequency of 100 MHz under commercial temperature and voltage conditions, based on its -4 speed grade. This applies to internal CLB-to-CLB paths with proper timing constraints; actual achievable frequency depends on design placement and routing, as verified in Xilinx Foundation software timing reports for XCS20XL-4TQ144C.
Is XCS20XL-4TQ144C RoHS compliant?
No, XCS20XL-4TQ144C is not RoHS compliant. It uses leaded solder finish and contains lead in the die attach and packaging materials. Xilinx documentation (PCN #0205-0123) confirms this part falls under RoHS exemption 7a for high-melting-temperature solders in legacy industrial components.
Can XCS20XL-4TQ144C be reprogrammed in-system?
Yes, XCS20XL-4TQ144C supports in-system programming via its JTAG port, allowing configuration bitstream updates without removing the device from the PCB. This functionality requires a JTAG-compliant programmer and is fully supported in Xilinx IMPACT software for XCS20XL-4TQ144C configuration management.
XCS20XL-4TQ144C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®-XL
- 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:
- 3V ~ 3.6V
- Mounting Type:
- Surface Mount
- Operating Temperature:
- 0°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 144-TQFP (20x20)
XCS20XL-4TQ144C FAQ
1.How can I place an order for XCS20XL-4TQ144C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20XL-4TQ144C 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 XCS20XL-4TQ144C reliable?
The price and inventory of XCS20XL-4TQ144C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20XL-4TQ144C is usually 5 days.
3.What payment methods are accepted for XCS20XL-4TQ144C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20XL-4TQ144C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20XL-4TQ144C?
XCS20XL-4TQ144C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20XL-4TQ144C 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 XCS20XL-4TQ144C?
For technical support, including XCS20XL-4TQ144C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20XL-4TQ144C requirements.
6.How does Aetrix verify that XCS20XL-4TQ144C is sourced from the original manufacturer or authorized distributors?
All XCS20XL-4TQ144C 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 XCS20XL-4TQ144C meets industry standards.
7.What is the process for return or replacement of XCS20XL-4TQ144C?
All XCS20XL-4TQ144C units undergo pre-shipment inspection (PSI). If there is an issue with XCS20XL-4TQ144C, 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 XCS20XL-4TQ144C part is unused and in its original packaging.
Return procedure for XCS20XL-4TQ144C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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