My Inquiry
My Account
AMD XCS20-3VQ100C
- Part No.:
- XCS20-3VQ100C
- Manufacturer:
- AMD
- Category:
- FPGAs (Field Programmable Gate Array)
- Package:
- 100-TQFP
- Datasheet:
-
XCS20-3VQ100C.pdf
- Description:
- IC FPGA 77 I/O 100VQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
XCS20-3VQ100C from AMD (formerly Xilinx) is a Spartan-2 FPGA with 20,000 system gates, 100-pin VQFP package, 3.3V I/O voltage, and -3 speed grade. It integrates configurable logic blocks, distributed RAM, and DLL-based clock management for embedded control and interface bridging in industrial PLCs.
For engineers reviewing the XCS20-3VQ100C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (84 user I/Os), DLL support for input deskew, 3.3V LVTTL/LVCMOS compatibility, and availability of legacy configuration PROMs.
Technical Context
The XCS20-3VQ100C implements a fine-grained architecture with 1,152 configurable logic blocks (CLBs), each containing two 4-input function generators and flip-flops. It supports synchronous design with up to four global clock nets and internal DLLs for phase alignment of input clocks.
Configuration is performed via serial master mode using external PROMs such as XC18V02 or XCF02S. The device requires external power sequencing: VCCINT = 2.5V ± 3%, VCCO = 3.3V ± 5%, with dedicated decoupling per bank.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Capacity | 20,000 system gates - defines maximum combinational logic density for control-state machines and glue logic |
| User I/O Pins | 84 - supports parallel bus interfaces, sensor arrays, and multi-channel digital I/O expansion |
| Speed Grade | -3 - guarantees 10 ns CLB propagation delay and 125 MHz maximum clock frequency |
| I/O Standard | LVTTL/LVCMOS 3.3V - ensures direct interfacing with microcontrollers and peripheral ICs without level shifters |
| Internal Clock Management | DLL only (no PLL) - provides input clock deskew and duty-cycle correction, not frequency synthesis |
| Configuration Mode | Serial master - requires external 2M-bit PROM (e.g., XC18V02) and JTAG for programming |
Pinout & Package
Package: 100-pin Very Thin Quad Flat Pack (VQFP), 14 × 14 mm body, 0.5 mm pitch, lead-free (Pb-free) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 (T1) | PROGRAM_B | Active-low asynchronous reset that reloads configuration from PROM on falling edge |
| PIN 2 (U1) | INIT_B | Open-drain status output indicating configuration completion or error |
| PIN 3 (V1) | CCLK | Configuration clock input - drives PROM read timing during master serial mode |
| PIN 4 (W1) | DIN | Serial data input from PROM - latched on rising CCLK edge |
| PIN 97 (R14) | GCK0 | Global clock input 0 - routed to all CLBs and DLLs for synchronous timing distribution |
| PIN 98 (T14) | GCK1 | Global clock input 1 - independent routing domain for secondary clock domains |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Logic Blocks (CLBs) | 1,152 CLBs with dual 4-LUTs and registered outputs enable efficient state-machine and arithmetic logic implementation |
| Distributed RAM | Each CLB provides 16 bits of fast synchronous RAM - usable as shift registers or small lookup tables without block RAM overhead |
| Digital Delay Lock Loop (DLL) | Single DLL supports input clock deskew and 50% duty-cycle correction - critical for high-speed parallel bus capture |
| Multi-Voltage I/O Banks | Four independent I/O banks allow mixed 3.3V/2.5V signaling on same device - simplifies interface to heterogeneous peripherals |
| JTAG Boundary Scan | IEEE 1149.1-compliant TAP controller enables in-system verification and debug without external test fixtures |
Applications
| Industrial Motion Control | Legacy System Interface Bridge |
|---|---|
Use Scenario: Real-time servo loop coordination in CNC machine controllers using encoder feedback and PWM outputs. IC Role / Device Role / Timing Role: FPGA fabric implements position-loop logic and synchronized PWM generation; DLL aligns encoder clock to system clock. Use Value: 84 I/Os support simultaneous analog input sampling, digital I/O, and fieldbus signaling; -3 speed grade ensures sub-100 ns loop latency. | Use Scenario: Bridging ISA-bus peripherals to modern PCI-based host systems in factory automation upgrades. IC Role / Device Role / Timing Role: Glue logic translates address strobes, data handshaking, and interrupt arbitration between mismatched bus protocols. Use Value: Configurable timing parameters accommodate variable ISA setup/hold windows; LVTTL I/O matches legacy peripheral voltage levels. |
| Programmable Logic Relay | Test Equipment Pattern Generator |
Use Scenario: Replacing electromechanical relays in safety-critical HVAC sequencers with deterministic logic execution. IC Role / Device Role / Timing Role: State-machine-based sequencer with watchdog timer and fail-safe outputs; operates at fixed 50 MHz clock derived from DLL-stabilized oscillator. Use Value: 20,000-gate capacity supports complex interlock logic and diagnostics; VQFP package allows manual rework in field-replaceable modules. | Use Scenario: Generating synchronized digital stimulus waveforms for PCB functional testing across multiple DUTs. IC Role / Device Role / Timing Role: Pattern memory controller with address sequencer and output formatter; DLL aligns pattern clock to reference trigger. Use Value: Distributed RAM enables 128-word deep pattern storage per channel; 3.3V I/O drives TTL-compatible test fixtures directly. |
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 |
|---|---|---|---|
| XCS20-4VQ100C | Faster -4 speed grade (8 ns CLB delay); identical pinout and configuration interface | Supports higher-frequency control loops and tighter timing margins | Select when target system clock exceeds 125 MHz or setup/hold margins are marginal with -3 grade |
| XCS30-3VQ100C | Higher 30,000-gate capacity; same VQFP-100 package and I/O structure | Enables larger state machines and additional peripheral interfaces without board redesign | Choose when logic utilization exceeds 85% in XCS20-3VQ100C implementations or future scalability is required |
Compared with XCS20-3VQ100C, the XCS20-4VQ100C offers improved timing margin at identical gate count and footprint, while the XCS30-3VQ100C provides scalable logic density within the same package - both retain full configuration and I/O compatibility.
Availability
XCS20-3VQ100C is available at Aetrix Electronics and suitable for industrial motion control, legacy interface bridging, and programmable relay applications requiring stable component supply over extended production lifecycles.
Supply support for XCS20-3VQ100C 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, inheriting its FPGA portfolio including the Spartan family. AMD focuses on adaptive computing solutions for data center, AI, and industrial markets.
The Spartan-2 family was designed for cost-sensitive, high-volume embedded control applications where predictable timing, low power, and mature toolchain support are essential - not for high-performance compute or AI acceleration.
FAQ
What is the configuration method supported by XCS20-3VQ100C?
The XCS20-3VQ100C supports serial master mode configuration using an external PROM (e.g., XC18V02) and also accepts JTAG programming via IEEE 1149.1 boundary scan. It does not support slave parallel or boundary-scan-only modes. Configuration occurs on power-up or after PROGRAM_B assertion, with INIT_B signaling completion status.
Does XCS20-3VQ100C support 2.5V I/O standards?
No, XCS20-3VQ100C supports only 3.3V LVTTL and LVCMOS I/O standards. Its VCCO pins must be supplied at 3.3V ±5%. While VCCINT is 2.5V for core logic, I/O banks are not configurable for 2.5V signaling - mixing voltages requires external level shifters.
Can XCS20-3VQ100C generate new clock frequencies?
No, XCS20-3VQ100C contains only a Digital Delay Lock Loop (DLL), not a Phase-Locked Loop (PLL). It can deskew and correct duty cycle of input clocks but cannot multiply or divide frequencies. Clock synthesis requires external oscillators or higher-tier FPGAs with PLLs.
What is the maximum operating junction temperature for XCS20-3VQ100C?
The XCS20-3VQ100C has a maximum junction temperature of +100°C under continuous operation, as specified in the Spartan-2 DC and Switching Characteristics datasheet (DS001-3). Thermal design must ensure case temperature remains below 85°C with appropriate PCB copper pour and airflow for sustained 100% logic utilization.
Is JTAG debugging supported on XCS20-3VQ100C?
Yes, XCS20-3VQ100C includes full IEEE 1149.1 JTAG boundary scan support for device programming, interconnect testing, and real-time signal observation via compatible debug tools. The TAP controller operates independently of user logic and remains accessible even when configuration fails.
XCS20-3VQ100C 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)
XCS20-3VQ100C FAQ
1.How can I place an order for XCS20-3VQ100C through Aetrix?
Please submit a Request for Quotation (RFQ) for XCS20-3VQ100C 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 XCS20-3VQ100C reliable?
The price and inventory of XCS20-3VQ100C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XCS20-3VQ100C is usually 5 days.
3.What payment methods are accepted for XCS20-3VQ100C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XCS20-3VQ100C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XCS20-3VQ100C?
XCS20-3VQ100C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XCS20-3VQ100C 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 XCS20-3VQ100C?
For technical support, including XCS20-3VQ100C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XCS20-3VQ100C requirements.
6.How does Aetrix verify that XCS20-3VQ100C is sourced from the original manufacturer or authorized distributors?
All XCS20-3VQ100C 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 XCS20-3VQ100C meets industry standards.
7.What is the process for return or replacement of XCS20-3VQ100C?
All XCS20-3VQ100C units undergo pre-shipment inspection (PSI). If there is an issue with XCS20-3VQ100C, 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 XCS20-3VQ100C part is unused and in its original packaging.
Return procedure for XCS20-3VQ100C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XCS20-3VQ100C Tags
-
ICE40LP384-SG32
Lattice Semiconductor Corporation
-
ICE40UL640-CM36AI
Lattice Semiconductor Corporation
-
ICE40UL1K-CM36AI
Lattice Semiconductor Corporation
-
LCMXO2-256HC-4SG32C
Lattice Semiconductor Corporation
-
10M02DCV36C8G
Intel
-
LCMXO2-256HC-4SG32I
Lattice Semiconductor Corporation
-
ICE5LP1K-SG48ITR
Lattice Semiconductor Corporation
-
ICE40LP1K-CM36
Lattice Semiconductor Corporation
-
LCMXO2-256ZE-1SG32I
Lattice Semiconductor Corporation
-
LCMXO2-256HC-4SG48I
Lattice Semiconductor Corporation
-
ICE40LP1K-CM81
Lattice Semiconductor Corporation
-
T20W80I4
Efinix, Inc.
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
