CP2101 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – Single-Chip USB to UART Bridge

Preliminary
CP2101
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 512-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: 3.3V 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: 8
• Stop Bits: 1, 2
• Parity: Odd, Even, No Parity
- Baud Rates: 300bps to 921.6kbps
- 512 Byte Receive Buffer; 512 Byte Transmit Buffer
- Hardware or X-On / X-Off Handshaking Supported
- Event Character and Line Break Condition Support
VIRTUAL COM PORT DEVICE DRIVERS
- Works with Existing COM Port PC Applications
- Royalty-Free Distribution License
- Windows 98/Me/2000/XP
- MAC OS-9
- MAC OS-X
- Windows CE *
- Linux 2.40 and greater *
* (Contact factory for availability)
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: 3.0V to 3.6V
- USB Bus Powered: 4.0V to 5.25V
PACKAGE
- 28-pin MLP (5mm X 5mm)
TEMPERATURE RANGE: -40°C TO +85°C
Example Circuit Diagram
7 _REGIN
C2
1uF
C1
4.7uF
TANT
6 _VDD
3 _GND
USB
C3
CONNECTOR ^0.1uF
VBUS ¹
D- ²
D+ ³
GND ⁴
8 _VBUS
5
D-
4
D+
Voltage
IN _Regulator
OUT
CP2101
3.3V
48MHz
Oscillator
USB
Transceiver
USB Function
Controller
512B
EEPROM
512B
Xmit
Buffer
512B
Rcv
Buffer
UART
/RST
9
SUSPEND ¹²
/SUSPEND ¹¹
(to external circuitry
for USB suspend
states)
RI
2
DCD
1
DTR
28
DSR
27
TXD
26
RXD
25
RTS
24
CTS
23
External RS-232
transceiver or
UART circuitry
DS014-1.0 AUG03
CYGNAL Integrated Products, Inc. © 2003
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