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CP2104 데이터시트 PDF




Silicon Laboratories에서 제조한 전자 부품 CP2104은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 CP2104 기능
기능 SINGLE-CHIP USB-TO-UART BRIDGE
제조업체 Silicon Laboratories
로고 Silicon Laboratories 로고


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CP2104 데이터시트, 핀배열, 회로
CP2104
SINGLE-CHIP USB-TO-UART BRIDGE
Single-Chip USB to UART Data Transfer
Integrated USB transceiver; no external resistors
required
Integrated clock; no external crystal required
Integrated 1024-Byte One-Time Programmable ROM
for customizable product information
On-chip power-on reset circuit
On-chip voltage regulator: 3.45 V output
USB Function Controller
USB Specification 2.0 compliant; full-speed (12 Mbps)
USB Suspend states supported via SUSPEND and
SUSPEND pins
Asynchronous Serial Data BUS (UART)
All handshaking and modem interface signals
Data formats supported:
- Data bits: 5, 6, 7, and 8
- Stop bits: 1, 1.5, and 2
- Parity: odd, even, mark, space, no parity
Baud rates: 300 bps to 2 Mbits
576 byte receive buffer; 576 byte transmit buffer
Hardware or X-On/X-Off handshaking supported
Four GPIO signals for status and control
Configurable I/O (1.8 V to VDD) using VIO pin
Configurable I/O (VDD to 5 V) using external pull-up
RS-485 mode with bus transceiver control
Virtual COM Port Device Drivers
Works with Existing COM Port PC Applications
Royalty-Free Distribution License
Windows 7®/Vista®/XP®/Server 2003®/2000®
Mac® OS-X
Linux®
USBXpress™ Direct Driver Support
Royalty-Free Distribution License
Windows 7/Vista/XP/Server 2003/2000
Windows CE® 6.0, 5.0, and 4.2
Example Applications
Upgrade of RS-232 legacy devices to USB
Upgrade of RS-485 legacy devices to USB
Cellular phone USB interface cable
PDA USB interface cable
USB to RS-232 serial adapter
Supply Voltage
Self-powered: 3.0 to 3.6 V
USB bus powered: 4.0 to 5.25 V
I/O voltage: 1.8 V to VDD
Package
RoHS-compliant 24-pin QFN (4x4 mm)
Ordering Part Number
CP2104-F03-GM
Temperature Range: –40 to +85 °C
External
voltage supply
or direct
connection
to VDD
USB
CONNECTOR
VBUS
D-
D+
GND
Rev. 1.1 11/13
VIO
REGIN
VDD
GND
VBUS
D-
D+
VPP
IN Voltage
Regulator
OUT
CP2104
4
48 MHz
Oscillator
USB
Transceiver
USB Function
Controller
1024B
PROM
576B 576B
TX RX
Buffer Buffer
UART
Figure 1. Example System Diagram
GPIO.0
GPIO.1
GPIO.2
GPIO.3
RST
SUSPEND
SUSPEND
RI
DCD
DTR
DSR
TXD
RXD
RTS
CTS
Copyright © 2013 by Silicon Laboratories
(to external circuitry
for status and
control)
(to external circuitry
for USB suspend
states)
External RS-232
transceiver or
UART circuitry
CP2104




CP2104 pdf, 반도체, 판매, 대치품
CP2104
1. System Overview
The CP2104 is a highly-integrated USB-to-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 CP2104 includes a USB
2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable ROM, and asynchronous
serial data bus (UART) with full modem control signals in a compact 4 x 4 mm QFN-24 package (sometimes called
“MLF” or “MLP”). No other external USB components are required.
The on-chip one-time programmable ROM may be used to customize the USB Vendor ID, Product ID, Product
Description String, Power Descriptor, Device Release Number, Device Serial Number, and GPIO configuration as
desired for OEM applications.
Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Labs allow a CP2104-based product to
appear as a COM port to PC applications. The CP2104 UART interface implements all RS-232/RS-485 signals,
including control and handshaking signals, so existing system firmware does not need to be modified. The device
also features up to four GPIO signals that can be user-defined for status and control information. Support for I/O
interface voltages down to 1.8 V is provided via a VIO pin. In many existing RS-232 designs, all that is required to
update the design from RS-232 to USB is to replace the RS-232 level-translator with the CP2104. Direct access
driver support is available through the Silicon Labs USBXpress driver set. See www.siliconlabs.com for the latest
application notes and product support information for the CP2104.
An evaluation kit for the CP2104 (Part Number: CP2104EK) is available. It includes a CP2104-based USB-to-
UART/RS-232 evaluation board, a complete set of VCP device drivers, USB and RS-232 cables, and full
documentation. Contact a Silicon Labs sales representatives or go to www.siliconlabs.com to order the CP2104
Evaluation Kit.
4 Rev. 1.1

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CP2104 전자부품, 판매, 대치품
Table 6. GPIO Output Specifications
–40 to +85 °C unless otherwise specified
Parameter
RS-485 Active Time After Stop Bit
TX Toggle Rate
RX Toggle Rate
*Note: Bit-time is calculated as 1 / baud rate.
Conditions
CP2104
Min Typ Max Units
— 1 — bit time*
— 10 —
Hz
— 10 —
Hz
Rev. 1.1
7

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