CP2105 Datasheet, PDF(1/24 Page) Silicon Laboratories – Data format: 8 data bits, 1 stop bit Parity: Even, Pdd, No parity Baud rates: 2400 bps to 921600 bps

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CP2105 Datasheet, PDF (1/24 Pages) Silicon Laboratories – Data format: 8 data bits, 1 stop bit Parity: Even, Pdd, No parity Baud rates: 2400 bps to 921600 bps

CP2105

SINGLE-CHIP USB TO DUAL UART BRIDGE

Single-Chip USB to Dual UART Data Transfer

ï¬ï Integrated USB transceiver; no external resistors

required

ï¬ï Integrated clock; no external crystal required

ï¬ï Integrated 296-Byte One-Time Programmable ROM for

storing customizable product information

ï¬ï On-chip power-on reset circuit

ï¬ï On-chip voltage regulator: 3.45 V output

USB Peripheral Function Controller

ï¬ï USB Specification 2.0 compliant; full-speed (12 Mbps)

ï¬ï USB Suspend states supported via SUSPEND pins

Two UART Interfaces (âEnhancedâ and âStandardâ)

ï¬ï Flow control options:

- Hardware (CTS / RTS)

- Software (X-On / X-Off)

- No flow control

ï¬ï Configurable I/O (1.8 V to VDD) using VIO pin

ï¬ï Configurable I/O (VDD to 5 V) using external pull-up

ï¬ï All modem interface signals available (when GPIO is not

used)

Enhanced UART Interface Features

ï¬ï Data formats supported:

- Data bits: 5, 6, 7, and 8

- Stop bits: 1, 1.5, and 2

- Parity: odd, even, mark, space, no parity

ï¬ï Baud rates: 300 bps to 2.0 Mbps

ï¬ï 320 Byte receive and transmit buffers

ï¬ï Two GPIO signals for status and control

ï¬ï RS-485 mode with bus transceiver control

Standard UART Interface Features

ï¬ï Data format: 8 data bits, 1 Stop bit

ï¬ï Parity: Even, Odd, No parity

ï¬ï Baud rates: 2400 bps to 921600 bps

ï¬ï 288 Byte receive and transmit buffers

ï¬ï Three GPIO signals for status and control

Virtual COM Port Device Drivers

ï¬ï Works with Existing COM Port PC Applications

ï¬ï Royalty-Free Distribution License

ï¬ï Windows 7/Vista/XP/Server 2003/2000

ï¬ï Mac OS-X

ï¬ï Linux

USBXpressâ¢ Direct Driver Support

ï¬ï Royalty-Free Distribution License

ï¬ï Windows 7/Vista/XP/Server 2003/2000

ï¬ï Windows CE 6.0, 5.0, and 4.2

Supply Voltage

ï¬ï Self-powered: 3.0 to 3.6 V

ï¬ï USB bus powered: 4.0 to 5.25 V

ï¬ï I/O voltage: 1.8 V to VDD

Package

ï¬ï RoHS-compliant 24-pin QFN (4 x 4 mm)

Ordering Part Number

ï¬ï CP2105-F01-GM

Temperature Range: â40 to +85 Â°C

Connect to

VBUS or

External Supply

USB

Connector

VBUS

D+

D-

GND

Logic Level

Supply

(1.8V to VDD)

REGIN Voltage

VDD Regulator

48 MHz

Oscillator

GND

USB Interface

VBUS

Full-Speed Peripheral

D+

12 Mbps

Function

D-

Transceiver Controller

CP2105

Baud Rate

Generator

Data FIFOs

320 B RX

320 B TX

ECI Clock

SCI Clock

GPIO / Handshake 6

Control

Enhanced UART

(ECI)

SUSPEND / RI_ECI

NC / DCD_ECI / VPP

GPIO0_ECI / DTR_ECI

GPIO.1_ECI / DSR_ECI

RTS_ECI

CTS_ECI

RXD_ECI

TXD_ECI

296 Byte PROM

(Product Customization)

RST

288 B RX

288 B TX

VIO

I/O Power and Logic Levels

Standard UART

(SCI)

GPIO / Handshake 6

Control

RXD_SCI

TXD_SCI

RTS_SCI

CTS_SCI

SUSPEND / RI_SCI

GPIO.0_SCI / DCD_SCI

GPIO.1_SCI / DTR_SCI

GPIO.2_SCI / DSR_SCI

Figure 1. Example System Diagram

Enhanced

UART

and GPIO

Signals

Standard

UART

and GPIO

Signals

Rev. 1.0 10/10

CP2105

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