Product Specifications
The XC3120A-4PQ100C features a robust architecture optimized for medium-complexity digital designs:
Core Specifications:
- Logic Cells: 1,200 equivalent gates
- CLB (Configurable Logic Blocks): 64 CLBs arranged in an 8×8 array
- I/O Pins: 77 user-configurable I/O pins
- Package Type: 100-pin Plastic Quad Flat Pack (PQFP)
- Speed Grade: -4 (4ns typical delay)
- Operating Voltage: 5V ยฑ10%
- Technology: CMOS SRAM-based configuration
Performance Characteristics:
- Maximum System Clock: 25 MHz
- Propagation Delay: 4ns typical
- Setup Time: 3ns typical
- Power Consumption: 500mW typical at 25MHz
- Operating Temperature Range: 0ยฐC to +70ยฐC (Commercial grade)
Memory and Storage:
- Configuration Memory: SRAM-based, requires external configuration PROM
- Flip-Flops: 256 flip-flops available
- RAM Bits: 512 bits of distributed RAM capability
Price Information
Pricing for the XC3120A-4PQ100C varies based on quantity and supplier. Typical pricing ranges from $15-35 USD per unit for small quantities, with significant volume discounts available for orders over 1,000 pieces. Contact authorized distributors for current pricing and availability, as this component may have limited stock due to its legacy status.
Documents & Media
Technical Documentation:
- XC3120A Data Sheet (DS060) – Complete electrical specifications and timing parameters
- XC3000A Series User Guide – Comprehensive programming and application guide
- Package Drawing (100-pin PQFP) – Mechanical specifications and footprint details
- Application Notes AN-312 – Design guidelines for XC3000A series implementation
Design Resources:
- Xilinx Foundation Series software support for design entry and simulation
- Reference designs and example projects
- Pin-out diagrams and package information
- Programming file formats and configuration procedures
Related Resources
Compatible Development Tools:
- Xilinx Foundation Series development environment
- Third-party FPGA programming tools supporting XC3000A series
- Logic analyzers and debugging equipment for FPGA verification
Complementary Products:
- Configuration PROMs (XC17xx series) for storing FPGA bitstreams
- Oscillators and clock management components
- Level shifters for interfacing with different voltage domains
- XC3064A-4PQ100C and XC3190A-4PQ100C for scalable logic requirements
Application Areas: The XC3120A-4PQ100C excels in digital signal processing prototypes, control systems, communication interfaces, and educational FPGA projects where moderate complexity and proven reliability are essential.
Environmental & Export Classifications
Environmental Compliance:
- RoHS Compliance: Legacy product – check specific lot codes for compliance status
- Operating Temperature: 0ยฐC to +70ยฐC (Commercial temperature range)
- Storage Temperature: -65ยฐC to +150ยฐC
- Humidity: 5% to 95% non-condensing
- ESD Rating: Class 1 (>1000V Human Body Model)
Export Classifications:
- ECCN (Export Control Classification Number): 3A991.a.2
- HTS (Harmonized Tariff Schedule): 8542.33.0001
- Country of Origin: Varies by manufacturing facility
- Export Restrictions: Standard semiconductor export controls apply
Quality and Reliability:
- MTBF: >1,000,000 hours at 25ยฐC
- Package Moisture Sensitivity: Level 3
- Lead Finish: Standard lead frame finish (check specific part marking for RoHS status)
The XC3120A-4PQ100C represents a mature, cost-effective FPGA solution for applications requiring proven technology with comprehensive design tool support. While newer FPGA families offer enhanced performance, this device remains valuable for legacy system maintenance and cost-sensitive applications where its specifications meet design requirements.

