CP2101EK Silicon Laboratories Inc, CP2101EK Datasheet

Page 1

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 ...

Page 2

CP2101 2 Rev. 1.8 ...

Page 3

Table of Contents 1. System Overview..................................................................................................... 5 2. Absolute Maximum Ratings ................................................................................... 5 Table 2.1. Absolute Maximum Ratings ................................................................ 5 3. Global DC Electrical Characteristics ..................................................................... 6 Table 3.1. Global DC Electrical Characteristics ................................................... 6 Table 3.2. UART and Suspend ...

Page 4

CP2101 N OTES : 4 Rev. 1.8 ...

Page 5

System Overview The CP2101 is a highly-integrated USB-to-UART Bridge Controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The CP2101 includes a USB 2.0 full-speed function controller, USB transceiver, ...

Page 6

CP2101 3. Global DC Electrical Characteristics Table 3.1. Global DC Electrical Characteristics V = 3.0 to 3.6 V, –40 to +85 °C unless otherwise specified. DD Parameter Supply Voltage 1 Supply Current 1 Supply Current 2 Supply Current - USB ...

Page 7

Pinout and Package Definitions Table 4.1. Pin Definitions for the CP2101 Name Pin # Type V 6 Power In 3.0–3.6 V Power Supply Voltage Input. DD Power Out 3.3 V Voltage Regulator Output. See Section 9. GND 3 Ground ...

Page 8

CP2101 GND DCD GND REGIN 7 Figure 4.1. QFN-28 Pinout Diagram (Top View) 8 CP2101 Top View GND Rev. 1 ...

Page 9

Figure 4.2. QFN-28 Package Drawing Table 4.2. QFN-28 Package Dimensions Dimension Min Nom A 0.80 0.90 A1 0.03 0.07 A3 0.25 REF b 0.18 0.25 D 5.00 BSC. D2 2.90 3.15 e 0.50 BSC. E 5.00 BSC. Notes: 1. All ...

Page 10

CP2101 Figure 4.3. Typical QFN-28 Landing Diagram 10 Rev. 1.8 ...

Page 11

Figure 4.4. Typical QFN-28 Solder Paste Recommendation Rev. 1.8 CP2101 11 ...

Page 12

CP2101 5. USB Function Controller and Transceiver The Universal Serial Bus function controller in the CP2101 is a USB 2.0 compliant full-speed device with integrated transceiver and on-chip matching and pull-up resistors. The USB function controller manages all data transfers ...

Page 13

The UART is programmable to support a variety of data formats and baud rates. If the Virtual COM Port drivers are used, the data format and baud rate are set during COM port configuration on the PC. If the USBXpress ...

Page 14

CP2101 8. CP2101 Device Drivers There are two sets of device drivers available for the CP2101 devices: the Virtual COM Port (VCP) drivers and the USBXpress Direct Access drivers. Only one set of drivers is necessary to interface with the ...

Page 15

Voltage Regulator The CP2101 includes an on-chip 5-to-3 V voltage regulator. This allows the CP2101 to be configured as either a USB bus-powered device or a USB self-powered device. These configurations are shown in Figure 9.1 and Figure 9.2. ...

Page 16

CP2101 VBUS From VBUS From 5 V REGIN Power Net To 3V Power Net Figure 9.2. Configuration 2: USB Self-Powered VBUS From VBUS REGIN From 3 V Power Net Figure 9.3. Configuration 3: USB Self-Powered, Regulator Bypassed 16 CP2101 VBUS ...

Page 17

Relevant Application Notes The following Application Notes are applicable to the CP2101. The latest versions of these application notes and their accompanying software are available at: http://www.silabs.com/products/microcontroller/applications.asp. AN144: CP210x Device Customization Guide. This application note describes how to use ...

Page 18

CP2101 OCUMENT HANGE IST Revision 1.6 to Revision 1.7 Updated “Linux 2.40” bullet on page 1. Changed MLP to QFN throughout. Revision 1.7 to Revision 1.71 Removed “Windows CE” bullet from page 1. Revision 1.71 to Revision ...

Page 19

N : OTES Rev. 1.8 CP2101 19 ...

Page 20

... Silicon Laboratories products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 20 Rev ...