CP2103 Datasheet, PDF (1/18 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP USB TO UART BRIDGE

CP2103
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 EEPROM for vendor ID, product
ID, serial number, power descriptor, release number,
and product description strings
On-chip power-on reset circuit
On-chip voltage regulator: 3.3 V output
USB Function Controller
USB Specification 2.0 compliant; full-speed (12 Mbps)
USB suspend states supported via 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 1 Mbits
576 Byte receive buffer; 640 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 V_DD) using V_IO pin
Configurable I/O (V_DD 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^®98 SE/2000/XP
MAC OS-9
MAC OS-X
Linux 2.40
USBXpress™ Direct Driver Support
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 V_DD
Package
Lead free 28-pin QFN (5 x 5 mm)
Ordering Part Number
CP2103-GM
Temperature Range: –40 to +85 °C
External
voltage supply
or direct
connection
to VDD
USB
CONNECTOR
VBUS ¹
D- ²
D+ ³
GND ⁴
5
VIO
7 _REGIN
6 _VDD
2 _GND
8 _VBUS
CP2103
4
IN ^Voltage
Regulator
OUT
3.3 V
48 MHz
Oscillator
4
D-
3
D+
USB
Transceiver
USB Function
Controller
1024B
EEPROM
640B
TX
Buffer
576B
RX
Buffer
UART
Figure 1. Example System Diagram
GPIO_0 ¹⁹
GPIO_1 ¹⁸
GPIO_2 ¹⁷
GPIO_3 ¹⁶
RST
9
SUSPEND ¹²
SUSPEND ¹¹
RI
1
DCD
28
DTR
27
DSR
26
TXD
25
RXD
24
RTS
23
CTS
22
(to external circuitry
for status and
control)
(to external circuitry
for USB suspend
states)
External RS-232
transceiver or
UART circuitry
Preliminary Rev. 0.2 9/05
Copyright © 2005 by Silicon Laboratories
CP2103
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.