The AT6003-4AC is a CMOS-based Field Programmable Gate Array (FPGA) developed by Atmel (now part of Microchip Technology). Designed for general-purpose logic implementation, this device belongs to the AT6000 series, known for offering flexible, programmable logic solutions with low power consumption, nonvolatile configuration, and fast reprogrammability.
Although it is now considered a legacy component, the AT6003-4AC remains valuable for maintenance, repairs, and long-lifecycle embedded systems that depend on consistent and predictable hardware behavior.
Technical Specifications
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Architecture:
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CMOS-based FPGA with fine-grained logic array
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Gate Count:
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Approx. 6,000 usable gates
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Logic Cells:
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896 logic modules (4-input look-up tables with flip-flops)
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I/O Pins:
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84 programmable I/O pins
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Clock Management:
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4 global clocks supported
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Configuration:
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In-system programmable via JTAG or dedicated programming interface
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Performance Grade:
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“-4” indicates a specific speed grade (moderate performance)
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Package Type:
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84-pin PLCC (Plastic Leaded Chip Carrier)
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Supply Voltage:
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5V operation
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Temperature Range:
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Commercial grade: 0°C to +70°C
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🔗 Microchip FPGA Overview – Microchip Technology
Key Features
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✅ Reprogrammable CMOS FPGA with fast turnaround
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✅ Low static and dynamic power consumption
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✅ Fine-grain architecture for flexible logic implementation
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✅ Ideal for glue logic and peripheral interfacing
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✅ No need for external configuration memory (nonvolatile)
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✅ Stable legacy option for mature product designs
Applications of AT6003-4AC
1. Legacy Embedded Systems and Repairs
The AT6003-4AC is widely used in maintaining or repairing older equipment where redesigning the board is impractical. Common sectors include:
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Industrial machinery
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Aerospace subsystems
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Legacy telecom hardware
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Military communication equipment
2. Custom Peripheral Interfaces
Thanks to its reprogrammable logic, it’s useful for:
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Bridging old and new communication standards
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Bus arbitration and signal buffering
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Custom timing or data formatting logic
3. Low-Volume Prototyping and Custom Designs
In early-stage designs, the AT6003-4AC allows:
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Rapid development cycles
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On-board modifications without changing PCBs
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Reduced time-to-market for proof-of-concept hardware
4. Control Logic Replacement
This FPGA serves as a drop-in alternative to:
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Discrete TTL/CMOS logic ICs
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PALs and GALs (Programmable Array Logic)
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Early CPLDs (Complex Programmable Logic Devices)
It helps reduce component count and improve maintainability.
Why Source AT6003-4AC from DRex Electronics?
At DRex Electronics, we specialize in helping engineers, OEMs, and MRO teams source legacy and hard-to-find components like the AT6003-4AC for embedded systems, industrial automation, and aerospace applications.
Why Choose DRex?
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✅ Access to legacy Atmel FPGAs and Microchip programmable logic devices
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✅ ISO 9001-certified sourcing and component traceability
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📦 Global shipping for prototypes, small batches, and production quantities
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🔧 Technical assistance for FPGA replacements and cross-references
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🌍 Trusted supplier for long-lifecycle and EOL system designs
