Microchip's USB251x is a family of versatile, cost-effective and power-efficient USB 2.0 hub controllers. Leveraging Microchip's innovative MultiTRAK technology that delivers industry-leading data throughput in mixed-speed USB environments, the USB251x family is designed for applications that demand low power and a small footprint without compromising on performance.
Well-suited for consumer and mobile applications, all members of the USB251x family are available in space-saving packages. The common 36-pin package shared among the 2/3/4-port hub controllers measures only 6x6mm and provides an ultra small footprint for space-constrained designs while allowing scalable port expansion from two to four ports. The 7-port USB2517 comes in a space-efficient 9x9mm 64-pin package.
Over 30 programmable features, including Microchip's unique PortMap, PortSwap, TrueSpeed and PHYBoost are designed to aid system designers in simplifying PCB layout and optimizing bill-of-material cost. For applications requiring extended operating temperature range, the USB251x i-temp series is designed to meet -40° to 85°C industrial temperature requirements.
*The USBCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account. Additional Features Highlights
High performance, low-power, small footprint hub controller IC with 2, 3, 4, or 7 downstream ports (indicated by the “x” in the part number)
Fully compliant with the USB 2.0 specification
Enhanced OEM configuration options available through either a single serial I2C® EEPROM, or SMBus slave port
MultiTRAK - High-performance multiple transaction translator which provides one transaction translator per port
PortMap - Flexible port mapping and disable sequencing
PortSwap - Programmable USB differential-pair pin locations ease PCB design by aligning USB signal lines directly to connectors
PHYBoost - Programmable USB signal drive strength for recovering signal integrity using 4-level driving strength resolution Features
Full power management with individual or ganged power control of each downstream port
Fully integrated USB termination and pull-up/pulldown resistors
Supports a single external 3.3 V supply source; internal regulators provide 1.8 V internal core voltage
Onboard 24 MHz crystal driver, ceramic resonator, or external 24/48 MHz clock input
Customizable vendor ID, product ID, and device ID
4 kilovolts of HBM JESD22-A114F ESD protection (powered and unpowered)
Supports self- or bus-powered operation
RoHS compliant packages:
36-pin QFN (6x6 mm)
48-pin QFN (7x7 mm)
64-pin QFN (9x9 mm)
USB251xi products support the industrial temperature range of -40°C to +85°C Target Applications
Mobile PC Docking Stations
LCD Monitors/TVs
PC Motherboards
Gaming Consoles
Multi-Function Printers
Cable/DSL Modems
Set-Top Boxes
DVD/CD-ROM/DVR
HDD Enclosures
Keyboards
KVM Switches
Server Front Panels
Point-of-Sale (POS) Systems
IP Telephony
Automobile/Home Audio Systems
Industrial
Microchip's USB251x is a family of versatile, cost-effective and power-efficient USB 2.0 hub controllers. Leveraging Microchip's innovative MultiTRAK technology that delivers industry-leading data throughput in mixed-speed USB environments, the USB251x family is designed for applications that demand low power and a small footprint without compromising on performance.
Well-suited for consumer and mobile applications, all members of the USB251x family are available in space-saving packages. The common 36-pin package shared among the 2/3/4-port hub controllers measures only 6x6mm and provides an ultra small footprint for space-constrained designs while allowing scalable port expansion from two to four ports. The 7-port USB2517 comes in a space-efficient 9x9mm 64-pin package.
Over 30 programmable features, including Microchip's unique PortMap, PortSwap, TrueSpeed and PHYBoost are designed to aid system designers in simplifying PCB layout and optimizing bill-of-material cost. For applications requiring extended operating temperature range, the USB251x i-temp series is designed to meet -40° to 85°C industrial temperature requirements.
*The USBCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account. Additional Features
Highlights
- High performance, low-power, small footprint hub controller IC with 2, 3, 4, or 7 downstream ports (indicated by the “x” in the part number)
- Fully compliant with the USB 2.0 specification
- Enhanced OEM configuration options available through either a single serial I2C® EEPROM, or SMBus slave port
- MultiTRAK - High-performance multiple transaction translator which provides one transaction translator per port
- PortMap - Flexible port mapping and disable sequencing
- PortSwap - Programmable USB differential-pair pin locations ease PCB design by aligning USB signal lines directly to connectors
- PHYBoost - Programmable USB signal drive strength for recovering signal integrity using 4-level driving strength resolution
Features
- Full power management with individual or ganged power control of each downstream port
- Fully integrated USB termination and pull-up/pulldown resistors
- Supports a single external 3.3 V supply source; internal regulators provide 1.8 V internal core voltage
- Onboard 24 MHz crystal driver, ceramic resonator, or external 24/48 MHz clock input
- Customizable vendor ID, product ID, and device ID
- 4 kilovolts of HBM JESD22-A114F ESD protection (powered and unpowered)
- Supports self- or bus-powered operation
- RoHS compliant packages:
- 36-pin QFN (6x6 mm)
- 48-pin QFN (7x7 mm)
- 64-pin QFN (9x9 mm)
- USB251xi products support the industrial temperature range of -40°C to +85°C
Target Applications
- Mobile PC Docking Stations
- LCD Monitors/TVs
- PC Motherboards
- Gaming Consoles
- Multi-Function Printers
- Cable/DSL Modems
- Set-Top Boxes
- DVD/CD-ROM/DVR
- HDD Enclosures
- Keyboards
- KVM Switches
- Server Front Panels
- Point-of-Sale (POS) Systems
- IP Telephony
- Automobile/Home Audio Systems
- Industrial
