DPU54 — Low-Power 4-Port Full-Speed USB 1.1 Hub Controller
The DPU54 is a high-performance, low-power 4-port full-speed USB 1.1 hub controller.
Upstream port supports full-speed 12 Mbps; all four downstream ports support both full-speed 12 Mbps and low-speed 1.5 Mbps.
Unlike MCU-based designs, the DPU54 uses a state-machine + multi-transaction buffer architecture, achieving USB 1.1 full-speed performance with minimal hardware resources and ultra-fast system response.
Key Features
Fully compliant with USB 1.1 specification
Supports 12 MHz (full-speed) and 1.5 MHz (low-speed) operation
Integrated 1.5 kΩ upstream pull-up and 15 kΩ downstream pull-down resistors
On-chip 5 V and 1.8 V regulators
Integrated clock oscillator (no external crystal required)
Compact lead-free SOP-16 package
Applications
USB docking stations & extension cables
PC peripherals & monitors
In-vehicle systems & set-top boxes
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