CY7C68014A-128AXC
CY7C68014A-128AXC USB 2.0 FX2LP Controller | Infineon
The Infineon Technologies CY7C68014A-128AXC is a ROMless EZ-USB FX2LP USB 2.0 peripheral controller with 16 KB RAM, 40 GPIO ports, an 8-bit data bus, and a 24 MHz clock speed in a TQFP-128 package. Designed for USB 2.0 full-speed and high-speed peripheral applications, it integrates USB device functionality with an 8051-compatible core.
An EZ-USB FX2LP is a USB 2.0 peripheral controller and application-specific microcontroller. In the broader hierarchy, it belongs to USB interface controllers, embedded microcontrollers, semiconductor ICs, and power-managed embedded processing systems. Unlike a conventional host controller, the device is intended to terminate a USB peripheral connection while providing programmable data-transfer and general-purpose I/O resources for external data-acquisition, communication, or control hardware.
The controller provides 16 KB of internal RAM for firmware and data buffering, 40 GPIO ports for device-side control signals, and an operating supply range of 3.0 V to 3.6 V. Its 8-bit data interface supports integration with parallel data sources and sinks, while the integrated 24 MHz clock provides the timing reference for USB signaling and firmware execution. The low-power EZ-USB FX2LP architecture is particularly useful in battery-powered equipment that must balance USB connectivity against energy consumption.
The CY7C68014A family is based on the highly integrated EZ-USB FX2 architecture. USB traffic is handled by dedicated controller logic, leaving the embedded processor available for application firmware. The 16 KB RAM can hold firmware, descriptors, status data, and transfer buffers, allowing a compact implementation without an external program-memory device. This ROMless architecture allows product-specific USB behavior to be programmed directly into the device.
Typical implementations include USB data-acquisition equipment, USB-to-parallel interface adapters, industrial control modules, test and measurement instruments, communications equipment, and battery-powered portable peripherals. The 40 GPIO count can support chip selects, control strobes, status indicators, and external interface signaling, while the parallel data bus can connect the controller to sensors, converters, memories, or legacy peripheral logic.
PCB design should preserve short USB traces, provide solid ground-plane continuity, and place support components close to their associated pins. Pay particular attention to power distribution, clock-related routing, input protection, and the requirements listed in the manufacturer datasheet for external memory, firmware programming, and USB signal routing.
This page combines manufacturer device facts, package information, application guidance, drop-in replacement analysis, and engineering design notes. It is structured to help developers evaluate USB controller integration, PCB footprint constraints, firmware requirements, peripheral I/O planning, and direct replacement decisions without relying only on a catalog specification summary.
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