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CP2101

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
Single-Chip USB to UART Bridge
CP2101
Rev. 1.6 1/05 Copyright © 2005 by Silicon Laboratories CP2101
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: 3.3 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: 8
• Stop Bits: 1
• Parity: Odd, Even, No Parity
- Baud Rates: 300 bps to 921.6 kbps
- 512 Byte Receive Buffer; 512 Byte Transmit Buffer
- Hardware or X-On / X-Off Handshaking Supported
- Event Character Support
Virtual COM Port Device Drivers
- Works with Existing COM Port PC Applications
- Royalty-Free Distribution License
- Windows 98SE/2000/XP
- MAC OS-9
- MAC OS-X
- Windows CE*
- Linux 2.40 (currently supports binary only)
* (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: 3.0 to 3.6 V
- USB Bus Powered: 4.0 to 5.25 V
Package
- 28-pin MLP (5 x 5 mm)
Temperature Range: -40 to +85 °C
CP2101
3.3 V
Voltage
Regulator
48 MHz
Oscillator
IN
OUT
SUSPEND
SUSPEND
11
12
REGIN
7
GND
3
RST
9
D+
4
D-
5
8
UART
RI
DCD
CTS
RTS
RXD
TXD
DSR
DTR
2
1
28
27
26
25
24
23
2
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
512B
TX
Buffer
512B
RX
Buffer
512B
EEPROM
VDD
Example System Diagram
CP2101
2 Rev. 1.6
CP2101
Rev. 1.6 3
Table of Contents
1. System Overview..................................................................................................... 4
2. Absolute Maximum Ratings ................................................................................... 4
Table 2.1. Absolute Maximum Ratings...................................................................... 4
3. Global DC Electrical Characteristics .................................................................... 5
Table 3.1. Global DC Electrical Characteristics ........................................................ 5
Table 3.2. UART and Suspend I/O DC Electrical Characteristics............................. 5
4. Pinout and Package Definitions............................................................................. 6
Table 4.1. Pin Definitions for the CP2101 ................................................................. 6
Figure 4.1. MLP-28 Pinout Diagram (Top View) ....................................................... 7
Figure 4.2. MLP-28 Package Drawing ...................................................................... 8
Table 4.2. MLP-28 Package Dimensions .................................................................. 8
Figure 4.3. Typical MLP-28 Landing Diagram .......................................................... 9
Figure 4.4. Typical MLP-28 Solder Mask ................................................................ 10
5. USB Function Controller and Transceiver .......................................................... 11
Figure 5.1. Typical Connection Diagram ................................................................. 11
6. Asynchronous Serial Data Bus (UART) Interface............................................... 12
Table 6.1. Data Formats and Baud Rates............................................................... 12
7. Internal EEPROM................................................................................................... 12
Table 7.1. Default USB Configuration Data............................................................. 12
8. Virtual Com Port Device Drivers .......................................................................... 13
9. Voltage Regulator.................................................................................................. 14
Table 9.1. Voltage Regulator Electrical Specifications............................................ 14
Figure 9.1. Configuration 1: USB Bus-Powered ..................................................... 14
Figure 9.2. Configuration 2: USB Self-Powered ..................................................... 15
Figure 9.3. Configuration 3: USB Self-Powered, Regulator Bypassed ................... 15
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

CP2101

Mfr. #:
Buy CP2101
Manufacturer:
Silicon Labs
Description:
I/O Controller Interface IC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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