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AMD XCS20-4VQ100C
- Part No.:
- XCS20-4VQ100C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 100-TQFP
- Datasheet:
-
XCS20-4VQ100C.pdf
- Description:
- IC FPGA 77 I/O 100VQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,799
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Product details
Overview
XCS20-4VQ100C from AMD (formerly Xilinx) is a Spartan-2 family FPGA with 20,000 system gates, 100-pin VQFP package, 3.3 V I/O voltage, and -4 speed grade. It integrates configurable logic blocks, distributed RAM, and global clock networks for digital logic implementation in industrial control and communication interface designs.
For engineers reviewing the XCS20-4VQ100C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (84 user I/Os), logic capacity (20K gates), speed grade (-4), VQFP packaging, and support for 3.3 V LVTTL/LVCMOS interfaces.
Technical Context
The XCS20-4VQ100C implements a fine-grained architecture with configurable logic blocks (CLBs), each containing two 3-input look-up tables (LUTs) and flip-flops. It supports synchronous design with four global clock lines and dedicated clock enable/reset routing.
Configuration is performed via serial PROM or parallel mode using IEEE 1149.1 JTAG boundary-scan test access. The device operates within commercial temperature range (0°C to +70°C) and requires 2.5 V core supply and 3.3 V I/O supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 system gates - defines maximum combinational logic density for gate-equivalent synthesis |
| Speed Grade | -4 - indicates worst-case propagation delay of 4 ns for CLB-to-CLB paths |
| I/O Count | 84 user I/O pins - supports medium-complexity peripheral interfacing without external glue logic |
| Package | VQFP-100 - 100-lead Very Thin Quad Flat Package, 14 mm × 14 mm, 0.5 mm pitch |
| Core Voltage | 2.5 V ± 0.1 V - required for internal logic operation; separate from I/O supply |
| I/O Voltage | 3.3 V - compatible with LVTTL and LVCMOS33 signaling standards |
| Operating Temp | 0°C to +70°C - commercial grade, suitable for non-extended environmental deployments |
Pinout & Package
VQFP-100 (Very Thin Quad Flat Package), 14 mm × 14 mm body, 0.5 mm lead pitch, thermally enhanced plastic construction. Pin 1 marked by dot or notch orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Multiple dedicated ground pins ensure low-impedance return paths for core and I/O domains |
| VCCO | I/O power supply | 3.3 V supply for output drivers and input receivers on associated bank |
| VCCINT | Core power supply | 2.5 V supply for internal logic, CLBs, and interconnect resources |
| IO_Lxx | User-configurable I/O | 84 bidirectional pins supporting LVTTL/LVCMOS33 with programmable slew rate and drive strength |
| CLKx | Global clock input | Four dedicated low-skew clock inputs routed to global clock network |
| TCK/TMS/TDI/TDO | JTAG boundary-scan | IEEE 1149.1 compliant test access port for configuration and debug |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | Each contains dual 3-LUTs + flip-flops, enabling efficient mapping of sequential and combinatorial logic |
| Distributed RAM | Up to 128 bits per CLB - usable as shift registers or small memory buffers without block RAM overhead |
| Global Clock Network | Four independent low-skew clock trees - minimizes clock skew across large logic regions |
| JTAG Configuration Support | IEEE 1149.1 compliance enables in-system programming and boundary-scan testing without external PROM |
| Multi-Voltage I/O Banks | Supports mixed-voltage interfaces (3.3 V only on this variant) with bank-specific VCCO assignment |
Applications
| Industrial PLC Interface Module | Legacy Bus Bridge Adapter |
|---|---|
Use Scenario: Replacing fixed-function ASICs in programmable logic controllers for sensor data aggregation and discrete I/O control. IC Role / Device Role / Timing Role: Configurable logic fabric implementing custom state machines and protocol translators between fieldbus and microcontroller. Use Value: Enables field-upgradable control logic without hardware redesign; leverages 84 I/Os for direct connection to relay banks and analog front-ends. | Use Scenario: Bridging ISA or PC/104 bus peripherals to modern microcontroller-based systems in legacy equipment upgrades. IC Role / Device Role / Timing Role: Synchronous logic translator handling address decoding, strobe generation, and handshaking timing for 8-bit/16-bit parallel buses. Use Value: Uses -4 speed grade to meet sub-25 MHz ISA timing requirements; VQFP-100 footprint simplifies PCB layout in space-constrained embedded modules. |
| Communications Protocol Converter | Test Equipment Digital Pattern Generator |
Use Scenario: Converting between RS-485 Modbus RTU and SPI/I²C for smart sensor networks in building automation. IC Role / Device Role / Timing Role: Dual-role logic block implementing UART with custom framing and SPI master controller with configurable bit rates. Use Value: 20K gate capacity accommodates full Modbus slave stack plus error-checking logic; 3.3 V I/O ensures compatibility with modern MCU peripherals. | Use Scenario: Generating high-fidelity digital stimulus waveforms for IC functional validation in benchtop ATE setups. IC Role / Device Role / Timing Role: Deterministic pattern sequencer with synchronized multi-channel output using distributed RAM and registered outputs. Use Value: -4 speed grade guarantees 25 MHz pattern update rate; 84 I/Os support 32-bit parallel bus + control/status lines in single-package solution. |
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 |
|---|---|---|---|
| XCS20-5VQ100C | Faster -5 speed grade (3.5 ns CLB delay); otherwise identical logic resources and pinout | Better suited for higher-frequency clock domains or tighter setup/hold margins | Select when timing closure requires >25 MHz system clock or reduced critical path latency |
| XCS30-4VQ100C | Higher 30K gate capacity; same -4 speed grade and VQFP-100 package | Supports larger logic functions such as multi-channel UARTs or basic video timing generators | Choose when design exceeds 20K gate utilization or requires additional CLBs/RAM blocks |
Compared with XCS20-4VQ100C, the XCS20-5VQ100C offers improved timing margin at identical density, while the XCS30-4VQ100C provides scalable logic headroom without changing board layout-both retain full pin compatibility and configuration file compatibility within the Spartan-2 family.
Availability
XCS20-4VQ100C is available at Aetrix Electronics and suitable for industrial control, communications interface, and test equipment applications requiring stable component supply and long-term obsolescence management.
Supply support for XCS20-4VQ100C 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 acquired through the Xilinx acquisition in 2022.
The Spartan-2 family was designed for cost-sensitive, high-volume embedded logic applications requiring predictable performance, ease of use, and broad I/O flexibility.
FAQ
What is the core voltage requirement for XCS20-4VQ100C?
The XCS20-4VQ100C requires a regulated 2.5 V ± 0.1 V supply for its internal logic core (VCCINT). This is separate from the 3.3 V I/O supply (VCCO). Proper decoupling near the VCCINT pins is essential to maintain signal integrity and meet timing specifications for the XCS20-4VQ100C.
Does XCS20-4VQ100C support in-system programming?
Yes, the XCS20-4VQ100C supports in-system programming via its IEEE 1149.1 JTAG interface (TCK/TMS/TDI/TDO pins). This allows configuration bitstream loading and boundary-scan testing without removing the XCS20-4VQ100C from the PCB, simplifying manufacturing and field updates.
How many user I/O pins does XCS20-4VQ100C provide?
The XCS20-4VQ100C provides 84 user-configurable I/O pins in its VQFP-100 package. These support LVTTL and LVCMOS33 standards with programmable drive strength and slew rate control, making the XCS20-4VQ100C suitable for mixed-signal interface applications.
Is XCS20-4VQ100C pin-compatible with other Spartan-2 devices in VQFP-100?
Yes, all Spartan-2 devices in the VQFP-100 package-including XCS20-4VQ100C, XCS20-5VQ100C, and XCS30-4VQ100C-share identical pinouts. This enables direct substitution based on speed grade or logic density without PCB redesign, provided power and thermal constraints are met for the XCS20-4VQ100C.
What configuration modes are supported by XCS20-4VQ100C?
The XCS20-4VQ100C supports Master Serial, Slave Serial, and JTAG configuration modes. External PROMs (e.g., XCF01S) are commonly used for Master Serial mode, while JTAG is used for development and in-system programming. All modes are fully supported for the XCS20-4VQ100C without hardware modification.
XCS20-4VQ100C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- AMD
- Series:
- Spartan®
- Package/Case:
- 100-TQFP
- 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:
- 77
- 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:
- 100-VQFP (14x14)
XCS20-4VQ100C FAQ
1.How can I place an order for XCS20-4VQ100C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20-4VQ100C 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 XCS20-4VQ100C reliable?
The price and inventory of XCS20-4VQ100C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20-4VQ100C is usually 5 days.
3.What payment methods are accepted for XCS20-4VQ100C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20-4VQ100C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20-4VQ100C?
XCS20-4VQ100C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20-4VQ100C 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 XCS20-4VQ100C?
For technical support, including XCS20-4VQ100C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20-4VQ100C requirements.
6.How does Aetrix verify that XCS20-4VQ100C is sourced from the original manufacturer or authorized distributors?
All XCS20-4VQ100C 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 XCS20-4VQ100C meets industry standards.
7.What is the process for return or replacement of XCS20-4VQ100C?
All XCS20-4VQ100C units undergo pre-shipment inspection (PSI). If there is an issue with XCS20-4VQ100C, 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 XCS20-4VQ100C part is unused and in its original packaging.
Return procedure for XCS20-4VQ100C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XCS20-4VQ100C Tags
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