Preliminary
CP2101
Single-Chip USB to UART Bridge
SINGLE-CHIP USB to UART DATA TRANSFER
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Integrated USB Transceiver; No External Resistors
-
-
-
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VIRTUAL COM PORT DEVICE DRIVERS
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Works with Existing COM Port PC Applications
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Royalty-Free Distribution License
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Windows 98/Me/2000/XP
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MAC OS-9
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MAC OS-X
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Windows CE *
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Linux 2.40 and greater *
* (Contact factory for availability)
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
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USB Specification 2.0 Compliant; Full Speed (12 Mbps)
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USB suspend states supported via SUSPEND pins
ASYNCHRONOUS SERIAL DATA BUS (UART)
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All Handshaking and Modem Interface Signals
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Data Formats Supported:
•
Data Bits: 8
•
Stop Bits: 1, 2
•
Parity: Odd, Even, No Parity
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Baud Rates: 300bps to 921.6kbps
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512 Byte Receive Buffer; 512 Byte Transmit Buffer
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Hardware or X-On / X-Off Handshaking Supported
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Event Character and Line Break Condition Support
EXAMPLE APPLICATIONS
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Upgrade of RS-232 Legacy Devices to USB
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Cellular Phone USB Interface Cable
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PDA USB Interface Cable
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USB to RS-232 Serial Adapter
SUPPLY VOLTAGE
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Self-powered: 3.0V to 3.6V
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USB Bus Powered: 4.0V to 5.25V
PACKAGE
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28-pin MLP (5mm X 5mm)
TEMPERATURE RANGE: -40°C TO +85°C
Example Circuit Diagram
7
C2
1uF
REGIN
Voltage
IN
Regulator
OUT
CP2101
/RST
SUSPEND
9
12
11
6
C1
4.7uF
TANT
VDD
3.3V
(to external circuitry
for USB suspend
states)
/SUSPEND
3
GND
RI
2
1
28
27
26
25
24
23
8
USB
CONNECTOR
VBUS
D-
D+
GND
6
5
1
2
3
VBUS
48MHz
Oscillator
DCD
DTR
DSR
TXD
RXD
RTS
CTS
C3
0.1uF
External RS-232
transceiver or
UART circuitry
5
4
D-
D+
4
USB
Transceiver
USB Function
Controller
512B
EEPROM
512B 512B
Xmit
Rcv
Buffer Buffer
UART
DS014-1.0 AUG03
© 2003
Page 1
ETC [ ETC ]
