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AMD XCS20XL-4TQG144I
- Part No.:
- XCS20XL-4TQG144I
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 144-LQFP
- Datasheet:
-
XCS20XL-4TQG144I.pdf
- Description:
- IC FPGA 113 I/O 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
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Product details
Overview
XCS20XL-4TQG144I from AMD (formerly Xilinx) is a Spartan-XL family FPGA with 20,000 system gates, 144-pin TQFP package, -4 speed grade, and industrial temperature range (–40°C to +100°C). It integrates configurable logic blocks, I/O banks supporting 3.3V/5V-tolerant interfaces, and dedicated carry logic for arithmetic functions - used in legacy industrial control and reconfigurable I/O subsystems.
For engineers reviewing the XCS20XL-4TQG144I datasheet, pinout, applications, or equivalent options, key selection criteria include logic capacity, I/O voltage flexibility, timing closure at –4 speed grade, and long-term availability for maintenance of legacy systems.
Technical Context
The XCS20XL-4TQG144I implements a fine-grained architecture with Configurable Logic Blocks (CLBs) containing four 3-input LUTs and flip-flops per CLB, plus dedicated carry chains for efficient adder implementation. It supports in-system programmability via JTAG boundary-scan and uses external configuration PROMs.
I/O banks are organized into four groups with independent VCCO supplies per bank, enabling mixed-voltage operation (3.3V or 5V outputs with 5V-tolerant inputs). Configuration is SRAM-based and requires external nonvolatile memory for power-up loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 system gates - defines maximum combinational logic density for legacy ASIC replacement or glue logic consolidation. |
| Speed Grade | -4 - guarantees maximum clock frequency of 125 MHz for internal CLB-to-CLB paths under worst-case industrial conditions. |
| Package | 144-pin TQFP (20×20 mm, 0.5 mm pitch) - surface-mount compatible with standard reflow profiles and accessible routing for mid-density designs. |
| Operating Temp | –40°C to +100°C - qualified for industrial environments without derating, including motor drives and factory automation controllers. |
| I/O Count | 118 user I/O pins - supports parallel bus interfacing, multi-channel sensor aggregation, and discrete control signal distribution. |
| VCCO per Bank | Configurable 3.3V or 5V - enables direct connection to legacy 5V TTL peripherals and modern 3.3V microcontrollers without level shifters. |
Pinout & Package
144-pin Thin Quad Flat Package (TQFP), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed pad not present. RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1–118 (user) | Configurable I/O | Programmable as input, output, or bidirectional with slew-rate control and pull-up/pull-down options. |
| PIN 119–122 | JTAG TDI/TDO/TMS/TCK | Dedicated boundary-scan interface for programming, debugging, and board-level test. |
| PIN 123–124 | CONFIG_CLK / INIT | Asynchronous configuration clock input and initialization status output during PROM loading. |
| PIN 125–128 | VCCINT / GND | 1.8V core supply and ground - must be decoupled locally with ≤100 nF ceramic capacitors. |
| PIN 129–144 | VCCO / GND per bank | Bank-specific I/O supply pins - each bank requires separate 3.3V or 5V rail with local bulk capacitance. |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant I/O | Supports direct interface to 5V logic without external level shifters - reduces BOM count and PCB area in mixed-voltage systems. |
| Carry chain logic | Fast ripple-carry propagation across CLBs - enables high-speed counters and arithmetic units without routing congestion. |
| In-system programmability | JTAG interface allows field updates and diagnostics without removing the device - critical for deployed industrial equipment maintenance. |
| Four I/O banks | Independent VCCO per bank permits simultaneous 3.3V and 5V signaling on same device - simplifies integration with heterogeneous peripheral sets. |
Applications
| Industrial PLC I/O Module | Legacy Bus Interface Adapter |
|---|---|
Use Scenario: Replacing obsolete gate arrays in programmable logic controller backplane I/O modules requiring field-upgradable logic. IC Role / Device Role / Timing Role: Configurable glue logic and protocol translation between CPU bus and isolated digital I/O channels. Use Value: Enables reuse of existing 5V backplane infrastructure while supporting modern microcontroller interfaces via mixed-voltage I/O banks. | Use Scenario: Bridging ISA or VMEbus peripherals to newer embedded processors in test equipment upgrades. IC Role / Device Role / Timing Role: Synchronizing asynchronous bus cycles and generating chip-select strobes with precise setup/hold timing. Use Value: Eliminates need for multiple discrete PALs and CPLDs - reduces component count and improves timing predictability over discrete solutions. |
| Motor Drive Control Logic | Factory Automation Sensor Hub |
Use Scenario: Implementing PWM generation, fault monitoring, and commutation sequencing in AC induction motor drives. IC Role / Device Role / Timing Role: Real-time deterministic logic engine coordinating gate drivers, current sensing, and thermal shutdown signals. Use Value: Delivers sub-microsecond response latency for overcurrent protection - meeting IEC 61800-5-1 functional safety timing requirements. | Use Scenario: Aggregating analog and digital sensor inputs (thermocouples, encoders, limit switches) in CNC machine tool control cabinets. IC Role / Device Role / Timing Role: Time-multiplexed signal conditioning, filtering, and parallel-to-serial conversion for host MCU communication. Use Value: Reduces host processor interrupt load by handling time-critical sampling autonomously - improving overall system determinism. |
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 |
|---|---|---|---|
| XCS10XL-4TQG144I | 10,000-gate capacity, identical package and speed grade - lower logic density with same I/O structure and timing model. | Suitable for simpler control functions where full 20K gates are unused; reduces cost and static power. | Select when design fits within 10K gates and no future expansion is planned - avoids over-provisioning logic resources. |
| XCS30XL-4TQG144I | 30,000-gate capacity, same package and speed grade - higher CLB count and I/O routing flexibility. | Required for designs needing additional state machines, wider data paths, or more complex bus arbitration logic. | Choose when migrating from XCS20XL-4TQG144I due to logic utilization >90% or added functionality requirements. |
Compared with XCS10XL-4TQG144I and XCS30XL-4TQG144I, the XCS20XL-4TQG144I provides optimal balance of gate count, I/O count, and thermal profile for mid-complexity industrial control tasks - avoiding unnecessary cost or power overhead while retaining upgrade headroom.
Availability
XCS20XL-4TQG144I is available at Aetrix Electronics and suitable for industrial automation, motor control, and legacy system refurbishment requiring stable component supply and long-term obsolescence management.
Supply support for XCS20XL-4TQG144I 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-XL product lines for industrial and aerospace customers requiring long-lifecycle support.
The Spartan-XL family was designed specifically for cost-sensitive, high-reliability applications where reprogrammable logic replaces fixed-function ASICs and PLDs in harsh environments.
FAQ
What is the configuration method for XCS20XL-4TQG144I?
The XCS20XL-4TQG144I uses external serial PROM-based configuration. Upon power-up, it loads its bitstream from an attached XCFxx-series PROM via dedicated configuration pins. JTAG is supported for in-system programming and boundary-scan testing, but does not replace the need for external configuration memory in normal operation. The XCS20XL-4TQG144I has no internal nonvolatile configuration storage.
Does XCS20XL-4TQG144I support 3.3V-only I/O operation?
Yes, the XCS20XL-4TQG144I supports 3.3V-only I/O operation when VCCO is set to 3.3V per I/O bank. Its I/O cells are 5V-tolerant regardless of VCCO setting, allowing safe connection to 5V signals even when driving at 3.3V levels. This dual-voltage capability is inherent to the Spartan-XL architecture and applies to all banks of the XCS20XL-4TQG144I.
What is the maximum operating frequency of XCS20XL-4TQG144I?
The XCS20XL-4TQG144I is rated for a maximum internal clock frequency of 125 MHz under worst-case industrial temperature and voltage conditions, as defined by its –4 speed grade. This value applies to CLB-to-CLB paths; actual system performance depends on design placement, routing, and I/O timing constraints. The XCS20XL-4TQG144I does not specify a guaranteed maximum I/O toggle rate independent of logic path delay.
Is XCS20XL-4TQG144I pin-compatible with other Spartan-XL devices in TQFP-144?
Yes, all Spartan-XL devices in the 144-pin TQFP package - including XCS10XL-4TQG144I, XCS20XL-4TQG144I, and XCS30XL-4TQG144I - share identical pinouts and I/O bank assignments. This allows direct substitution based on logic density requirements without PCB redesign. The XCS20XL-4TQG144I maintains full mechanical and electrical compatibility across this family subset.
What thermal management is required for XCS20XL-4TQG144I in industrial applications?
The XCS20XL-4TQG144I has no integrated thermal sensor or throttling mechanism. In continuous operation at full utilization within its –40°C to +100°C industrial rating, it requires ≥2 cm² of copper pour per watt on inner layers and airflow ≥0.5 m/s for ambient temperatures above 70°C. Thermal vias under the package are recommended. The XCS20XL-4TQG144I's power dissipation must be calculated using Xilinx XPower Analyzer with actual design netlist and activity factors.
XCS20XL-4TQG144I 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:
- -40°C ~ 100°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 144-TQFP (20x20)
XCS20XL-4TQG144I FAQ
1.How can I place an order for XCS20XL-4TQG144I through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20XL-4TQG144I 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-4TQG144I reliable?
The price and inventory of XCS20XL-4TQG144I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20XL-4TQG144I is usually 5 days.
3.What payment methods are accepted for XCS20XL-4TQG144I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20XL-4TQG144I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20XL-4TQG144I?
XCS20XL-4TQG144I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20XL-4TQG144I 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-4TQG144I?
For technical support, including XCS20XL-4TQG144I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20XL-4TQG144I requirements.
6.How does Aetrix verify that XCS20XL-4TQG144I is sourced from the original manufacturer or authorized distributors?
All XCS20XL-4TQG144I 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-4TQG144I meets industry standards.
7.What is the process for return or replacement of XCS20XL-4TQG144I?
All XCS20XL-4TQG144I units undergo pre-shipment inspection (PSI). If there is an issue with XCS20XL-4TQG144I, 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-4TQG144I part is unused and in its original packaging.
Return procedure for XCS20XL-4TQG144I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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