Description
📌 FANUC A20B-3300-0319 — Pentium CPU Module with 32 MB DRAM
Description:
The FANUC A20B-3300-0319 is a CPU processor module used in FANUC CNC controllers as part of the A20B-3300 series of modular control PCBs. It incorporates a Pentium-class CPU and comes equipped with 32 MB of DRAM memory to provide processing power and working memory for CNC systems.
Key Features:
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🧠 CPU Type: Pentium processor — provides faster and more capable processing than older 486-based modules.
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💾 Memory: Comes with 32 MB DRAM on board to support system operations and data handling.
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🔌 Series: Part of the modular A20B-3300 series of FANUC control boards, which includes CPU cards, axis/servo cards, display cards, and interface modules.
Function & Usage:
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This board functions as a main CPU module in compatible FANUC CNC controllers (such as 16i-B, 18i-B, 21i-B, 0i-B and similar systems). It processes machine control software, manages motion control logic, coordinates communication with other modules (memory, I/O, operator interface, etc.) and executes G-code commands.
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It plugs into the controller’s main backplane or CPU carrier card so that the system can interpret programs and operate the machine accurately.
Typical Applications:
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Used in modular FANUC CNC controllers where the CPU function is provided by a separate card rather than integrated into a single motherboard.
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Common in legacy and mid-generation i-Series controls (e.g., 0i-B, 16i-B, 18i-B, 21i-B models).