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CP2103 其他数据使用手册 - Silicon Labs（芯科）
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CP2103数据手册
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Interface Products Copyright © 2005 by Silicon Laboratories 10.27.2005
CP2103
3
.
3
V
Voltage
Regulator
48 MHz
Oscillator
IN
OUT
SUSPEND
SUSPEND
11
12
REGIN
7
GND
2
RST
9
D+
D-
4
8
UART
RI
DCD
CTS
RTS
RXD
TXD
DSR
DTR
1
28
27
26
25
24
23
22
2
3 3
External RS-232
transceiver or
UART circuitry
(to external circuitry
for USB suspend
states)
VBUS
D-
D+
GND
4
5
6
USB
CONNECTOR
6
1
VDD
VBUS
USB Function
Controller
USB
Transceiver
640B
TX
Buffer
576B
RX
Buffer
1024B
EEPROM
GPIO_0
GPIO_1
GPIO_3
GPIO_2
1
8
1
7
1
6
(to external circuitry
for status and
control)
4
VIO
5
External
voltage supply
or direct
connection
to VDD
1
9
CP2103
USB to UART Bridge
Description
- The CP2103 is a highly-integrated USB-to-UART bridge controller pro-
viding a simple solution for updating RS-232 or RS-485 designs to USB
using a minimum of components and PCB space. The CP2103 is a func
-
tional upgrade to CP2101/2 with new features such as configurable I/O
levels (3.3 to 1.8
V) and four general purpose I/O signals for system sta-
tus and control.
It includes the standard USB 2.0 full-speed function controller, USB
transceiver, oscillator, EEPROM and asynchronous serial data bus
(UART) with full modem control signals in a compact 5 x 5
mm MLP-28
package. No other external USB components are required.
Example Applications
- Upgrade of RS-232 legacy devices to USB
- Upgrade of RS-485 legacy devices to USB
- USB to RS-232 serial adapter
Virtual Com Port Drivers
- Works with existing COM port applications
- Royalty-free distribution license
- Windows 98SE/2000/XP
- MAC OS-9
- MAC OS-X
- Linux 2.40
USBXpress™ Direct Driver Support
Supply Voltage
- Self-powered: 3.0–3.6 V
- USB bus powered: 4.0–5.25 V
Temperature Range: –40 to +85 °C
Features
USB Function Controller and Transceiver
- USB specification 2.0 compliant; full-speed (12 Mbps)
- Integrated 1024-byte EEPROM for custom Baud rates, vendor ID, etc.
- Integrated transceiver; no external resistors required
- Integrated clock; no external crystal required
- USB suspend states supported via SUSPEND pins
Asynchronous Serial Data Bus (UART)
- All handshaking and modem interface signals
- Data formats supported: 8, 7, 6, 5-bit; 1, 1.5, 2 Stop bits
- Parity: Odd, Even, Mark, Space, No Parity
- Baud rates: 300 bps to 1 Mbps
- 576-byte receive buffer; 640-byte transmit buffer
- Event character support; line break event support
- Four GPIO signals for status and control
- Configurable I/O (3.3 to 1.8 V V
OH
) using V
IO
pin
- RS-485 mode with bus transceiver control
Power-On Reset Circuit
Package
- 28-pin QFN (lead-free package)
Ordering Part Numbers
- CP2103-GM
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