EZ-USB HX2LP™
Low-Power USB 2.0 Hub Controller Family
CY7C656xx
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
, CA 95134-1709
•
408-943-2600
Document #: 38-08037 Rev. *J
Revised April 14, 2008
Features
■ USB 2.0 hub controller
■ Automotive AEC grade option (–40 - 85C)
■ Compliant with the USB 2.0 specification
■ USB-IF Certified: TID# 30000009
■ Windows Hardware Quality Lab (WHQL) - compliant
■ Up to four downstream ports supported
■ Supports bus powered and self powered modes
■ Single Transaction Translator (TT)
■ Bus power configurations
■ Fit/form/function compatible with CY7C65640 and
CY7C65640A (TetraHub™)
■ Space saving 56-pin QFN
■ Single power supply requirement
❐ Internal regulator for reduced cost
■ Integrated upstream pull up resistor
■ Integrated pull down resistors for all downstream ports
■ Integrated upstream and downstream termination resistors
■ Integrated port status indicator control
■ 24 MHz external crystal (integrated PLL)
■ In-system EEPROM programming
■ Configurable with external SPI EEPROM:
❐ Vendor ID, Product ID, Device ID (VID/PID/DID)
❐ Number of active ports
❐ Number of removable ports
❐ Maximum power setting for high-speed and full-speed
❐ Hub controller power setting
❐ Power on timer
❐ Overcurrent detection mode
❐ Enabled/disabled overcurrent timer
❐ Overcurrent pin polarity
❐ Indicator pin polarity
❐ Compound device
❐ Enable full-speed only
❐ Disable port indicators
❐ Ganged power switching
❐ Self and bus powered compatibility
❐ Fully configurable string descriptors for multiple language
support
Routing Logic
Hub Repeater
USB Upstream Port
USB 2.0 PHY
PLL
Serial
Interface
Engine
High-Speed
USB Control Logic
SPI Communication
Block
USB Downstream Port 1
USB 2.0
PHY
Port Power
Control
Port
Status
USB Downstream Port 2
USB 2.0
PHY
Port Power
Control
Port
Status
USB Downstream Port 3
USB 2.0
PHY
Port Power
Control
Port
Status
USB Downstream Port 4
USB 2.0
PHY
Port Power
Control
Port
Status
SPI_SCK
SPI_CS
SPI_SD
D+
D-
PWR#[4]
OVR#[4]
LED
D+
D-
PWR#[3]
OVR#[3]
LED
D+
D- PWR#[2]
OVR#[2]
LED
D+
D-
PWR#[1]
OVR#[1]
LED
Transaction Translator
TT RAM
D+
D -
24 MHz
Crystal
Block Diagram
CY7C65630
[+] Feedback