CP2102
S
INGLE
-C
HIP
USB
TO
UART B
RIDGE
Single-Chip USB to UART Data Transfer
-
Integrated USB transceiver; no external resistors
-
Integrated clock; no external crystal required
-
Integrated 1024-Byte EEPROM for vendor ID, product
required
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
-
100% pin and software compatible with CP2101
Virtual COM Port Device Drivers
-
Works with Existing COM Port PC Applications
-
Royalty-Free Distribution License
-
Windows Vista/XP/Server 2003/2000/98SE
-
Mac OS-X / OS-9
-
Linux
USBXpress™ Direct Driver Support
-
Royalty-Free Distribution License
-
Windows Vista/XP/Server 2003/2000
-
Windows CE 5.0 and 4.2
Example Applications
-
Upgrade of RS-232 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
Package
-
Lead free 28-pin QFN (5 x 5 mm)
Ordering Part Number
-
CP2102-GM
Temperature Range: –40 to +85 °C
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
Event character support
Line break transmission
7
REGIN
IN
Voltage
Regulator
OUT
CP2102
RST
SUSPEND
9
12
11
VDD
6
VDD
GND
3.3 V
(to external circuitry
for USB suspend
states)
SUSPEND
3
RI
2
1
28
27
26
25
24
23
8
USB
CONNECTOR
VBUS
D-
D+
GND
6
5
1
2
3
VBUS
48 MHz
Oscillator
DCD
DTR
DSR
TXD
RXD
RTS
CTS
External RS-232
transceiver or
UART circuitry
5
4
D-
D+
4
USB
Transceiver
USB Function
Controller
1024B
EEPROM
640B 576B
TX
RX
Buffer Buffer
UART
D1 D2 D3
Figure 1. Example System Diagram
Rev. 1.2 3/07
Copyright © 2007 by Silicon Laboratories
CP2102