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CP2108 Datasheet Preview

CP2108 Datasheet

USB to Quad UART Bridge Controller

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CP2108 Data Sheet
The CP2108 is a highly integrated USB to Quad UART Bridge
Controller providing a simple solution for updating RS-232/
RS-485 designs to USB using a minimum of components and
PCB space.
The CP2108 includes a USB 2.0 full-speed function controller, USB transceiver, oscilla-
tor, EEPROM, and four asynchronous serial data buses (UART) with full modem con-
trol signals in a compact 9 mm x 9 mm 64-pin QFN package. The on-chip EEPROM
may be used to customize the USB Vendor ID (VID), Product ID (PID), product descrip-
tion string, power descriptor, device release number, interface strings, device serial
number, modem and GPIO configuration as desired for applications. 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 CP2108 devi-
ces enable quick USB connectivity with minimal development effort.
CP2108 is ideal for a wide range of applications, including the following:
• Instrumentation
• Industrial control
• Servers
• Point-of-Sale products
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
• Four independent UART interfaces
• 16 GPIOs with configurable options
• Royalty free Virtual COM port (VCP)
drivers
Connect to VBUS or
External Supply
USB
Connector
VBUS
D+
D-
GND
(3.0 V to VDD)
(2.7 to 6.0 V)
VREGIN
VDD
Voltage
Regulator
80 MHz
Oscillator
VSS
USB Interface
VBUS
Full-Speed Peripheral
D+
12 Mbps
Function
D-
Transceiver Controller
CP2108
Baud Rate
Generator
Clock Divider
Data
FIFO
6
Handshake Control
UARTn (0-3)
VIO
/RESET
VIO
VIOHD
18
EEPROM
(Product Customization)
I/O Power and Logic Levels UART0-2, GPIO, SUSPEND, RESET
High Drive UART 3(Pins 1-6)
RI(0-3)
DCD(0-3)
DTR(0-3)
DSR(0-3)
RTS(0-3)
CTS(0-3)
RX(0-3)
TX(0-3)
GPIO.0 – GPIO.15
SUSPEND
/SUSPEND
UART0
UART1
UART2
UART3
silabs.com | Building a more connected world.
Rev. 1.2




Silicon Labs

CP2108 Datasheet Preview

CP2108 Datasheet

USB to Quad UART Bridge Controller

No Preview Available !

1. Feature List and Ordering Information
CP2108 Data Sheet
Feature List and Ordering Information
CP 2108 B 03 G M R
Tape and Reel (Optional)
Package Type — QFN64
Temperature Grade — –40 to +85 °C (G)
Firmware Revision
Hardware Revision
Interface Family, USB-to-Quad-UART Bridge
Silicon Labs Xpress Product Line
Figure 1.1. CP2108 Part Numbering
The CP2108 devices have the following features:
Single-Chip USB-to-QUAD UART Data Transfer
• Four independent UART interfaces
• Integrated USB transceiver; no external resistor required
• Integrated clock; no external crystal required
• Integrated programmable EEPROM for storing customiza-
ble product information
• On-chip power-on reset circuit
• On-chip voltage regulator: 3.3 V output
USB Peripheral Function Controller
• USB Specification 2.0 compliant; full-speed (12 Mbps)
• USB suspend states supported via SUSPEND pins
Virtual COM Port Drivers
• Works with existing COM port PC applications
• Royalty-free distribution license
• Supported on Windows, Mac, and Linux
Supply Voltage
• Self-powered: 3.0 to 3.6 V
• USB bus powered: 4.0 to 5.5 V
• VIO voltage: 3.0 to VDD
• VIOHD voltage: 2.7 to 6 V
UART Interface Features
• Each UART interface supports the following:
• Supports hardware flow control (RTS/CTS)
• Supports all modem control signals
• Data formats supported:
• Data bits: 5, 6, 7, and 8
• Stop bits: 1, 1.5, and 2
• Parity: odd, even, set, mark and none
• Baud rates: 300 bps to 2 Mbps
• UART 3 (pins 1–6) supports interfacing to devices up to 6 V
GPIO Interface Features
• Total of 16 GPIO pins with configurable options
• Suspend pin support
• Usable as inputs, open-drain or push-pull outputs
• 4 configurable clock outputs for external devices
• RS-485 bus transceiver control
• Toggle LED upon transmission
• Toggle LED upon reception
Package Options
• RoHS-UART 3 compliant 64-pin QFN (9x9 mm)
Temperature Range
• –40 to +85 °C
Ordering Part Number
• CP2108-B03-GM
silabs.com | Building a more connected world.
Rev. 1.2 | 2


Part Number CP2108
Description USB to Quad UART Bridge Controller
Maker Silicon Labs
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CP2108 Datasheet PDF






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