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Single-Chip HID USB to SMBus Master Bridge
CP2112 Data Sheet
The CP2112
devices are designed to quickly add USB to your
applications by eliminating firmware complexity and reducing de-
velopment time.
These highly-integrated USB-to-SMBus bridge controllers provide a simple solution for
adding USB using a minimum of components and PCB space. The CP2112 includes a
USB 2.0 full-speed function controller, USB transceiver, oscillator, and a total of 8
GPIOs in a compact 4 x 4 mm QFN-24 package. All customization and configuration
options can be selected using a simple GUI-based configurator. By eliminating the
need for complex firmware and driver development, the CP2112 devices enable quick
USB connectivity with minimal development effort.
CP2112 is ideal for a wide range of applications, including the following:
KEY FEATURES
• No firmware development required
•
Simple GUI-based configurator
• Integrated USB transceiver; no external
resistors required
• Integrated clock; no external crystal
required
• USB 2.0 full-speed compatible
• Standard HID class device – no custom
driver needed
• 8 GPIOs with configurable options
• USB dongles
•
Medical meters
• Handheld controllers
• Point-of-Sale products
•
Data loggers
Connect to
VBUS or
External Supply
VBUS
D+
D-
GND
USB
Connector
GPIO
Signals
CP2112
48 MHz
Oscillator
SMBus
Controller
Voltage
Regulator
REGIN
VDD
GND
VBUS
D+
D-
I/O Power and Logic Levels
/RST
GPIO and
Suspend
Controller
SDA
SCL
GPIO.0_TXT
GPIO.1_RXT
GPIO.2
GPIO.3
GPIO.4
GPIO.5
GPIO.6
GPIO.7_CLK
Suspend
Signals
/SUSPEND
SUSPEND
USB Interface
Peripheral
Function
Controller
Full-Speed
12 Mbps
Transceiver
194 Byte PROM
(Product Customization)
VPP
Logic Level
Supply
(1.8V to VDD)
VIO
I/O Power and Logic Levels
To
SMBus
Slave
Devices
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