ASM3074

General Description

The ASM3074 is a USB 3.2 compliant hub with ASMedia’s legacy, innovative, and self-designed PHY technology perfectly integrated into it. The ASM3074 supports 4 downstream ports, and offers a low-power and cost-effective solution for a variety of USB applications. The ASM3074 is fully compliant with USB 3.2 Specification Revision 1.0 and USB Battery Charging Specification Revision 1.2.

Features

USB 3.2 Gen2x2 HUB Features

  • Compliant with USB 3.2 specification Revision 1.0
  • The upstream port supports USB 3.2 Gen2x2 20Gbps with CC logic implemented, High-Speed and Full-Speed Connections
  • 4 downstream ports support USB3.2 Gen2x1 10Gbps, High-Speed, Full-Speed and Low-Speed Connections
  • Implements USB 3.0 power management function
  • SuperSpeed Link Power Management support
  • USB 2.0 Link Power Management support
  • USB Attached SCSI Protocol Revision 1.0 Compliance
  • Multiple Transaction Translator support
  • Port Power Switching and Over-Current Protection per port control
  • Individual or Gang mode selectable via strapping
  • Can be defined as removable or permanently attached

Battery Charging Features

  • Charging Downstream Ports support USB-C 5V/3A with an external CC logic chip
  • Supports battery charging of most battery powered devices on all ports
  • USB-IF Battery Charging rev. 1.2 support (DCP, CDP & SDP)
  • Supports portable devices such as iPad and cellphones
  • Supports automatic Battery Charger Detection
  • Supports charging while the system enters the active or suspended state

General Features

  • Integrated 8-bit microprocessor
  • SPI flash support for customized firmware
  • External I2C EEPROM for customized configuration
  • Firmware & configuration capable of being uploaded via the upstream port
  • Integrated 5V to 3.3V LDO
  • Supports self-powered and bus-powered modes
  • Automatic power type detection and dynamic power type switch
  • Supports 25 MHz X’tal as clock source
  • Multiple GPIOs for LED applications
  • Two Power Supply domains
  • IO power supply with 3.3V+/-0.3V and 2.5V +/-0.2V
  • Core power supply 1.05V+/-0.05V

Package Type

10x10 mm2 88-pin QFN package

Green Package with RoHS compliance

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