cp2102 Silicon Laboratories, cp2102 Datasheet
cp2102
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cp2102 Summary of contents
Page 1
... EEPROM Buffer Buffer Figure 1. Example System Diagram Copyright © 2007 by Silicon Laboratories VDD 9 RST (to external circuitry 12 for USB suspend SUSPEND states) 11 SUSPEND DCD External RS-232 transceiver or 28 DTR UART circuitry 27 DSR UART 26 TXD 25 RXD 24 RTS 23 CTS CP2102 ...
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... CP2102 N : OTES 2 Rev. 1.2 ...
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... USB Function Controller and Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6. Asynchronous Serial Data Bus (UART) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7. Internal EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8. CP2101 Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 8.1. Virtual COM Port Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.2. USBXpress Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.3. Driver Customization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 8.4. Driver Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 9. Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 10. Relevant Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Rev. 1.2 CP2102 Page 3 ...
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... Royalty-free Virtual COM Port (VCP) device drivers provided by Silicon Laboratories allow a CP2102-based product to appear as a COM port to PC applications. The CP2102 UART interface implements all RS-232 signals, including control and handshaking signals, so existing system firmware does not need to be modified. In many existing RS-232 designs, all that is required to update the design from RS-232 to USB is to replace the RS-232 level-translator with the CP2102 ...
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... I = –10 µA V – 0 –10 mA — 8.5 mA — µA — — OL 2.0 — — Conditions 0 Rev. 1.2 CP2102 Typ Max Units 3.3 3.6 V — — 80 100 µA — 200 228 µA — +85 °C Typ Max UNITS — — — — ...
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... Data Carrier Detect control input (active low Ring Indicator control input (active low) This pin is driven high when the CP2102 enters the USB suspend state. This pin is driven low when the CP2102 enters the USB suspend state. These pins should be left unconnected or tied to V Rev. 1.2 Description Section 9 ...
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... GND DCD GND 3 CP2102 D+ 4 Top View GND REGIN 7 Figure 2. QFN-28 Pinout Diagram (Top View Rev. 1.2 CP2102 7 ...
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... CP2102 Bottom View DETAIL Side View DETAIL Figure 3. QFN-28 Package Drawing Rev. 1.2 Table 6. QFN-28 Package Dimensions MM MIN TYP MAX A 0.80 0.90 1. 0.02 0. 0.65 1.00 A3 — 0.25 — b 0.18 0.23 0.30 D — 5.00 — D2 2.90 3.15 3.35 E — ...
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... Optional GND Connection L 0.20 mm 0.30 mm 0.50 mm 0.35 mm 0.10 mm 0.85 mm Figure 4. Typical QFN-28 Landing Diagram Top View E2 E Rev. 1.2 CP2102 0. ...
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... CP2102 0.50 mm 0.60 mm 0. 0.20 mm 0.30 mm 0.50 mm 0.35 mm 0.10 mm 0.85 mm Figure 5. Typical QFN-28 Solder Paste Diagram 10 Top View 0.60 mm 0.30 mm 0. Rev. 1.2 0.85 mm ...
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... USB Function Controller and Transceiver The Universal Serial Bus function controller in the CP2102 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 between the USB and the UART as well as command requests generated by the USB host controller and commands for controlling the function of the UART ...
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... Silicon Laboratories VID also recommended to customize the serial number if the OEM application is one in which it is possible for multiple CP2102-based devices to be connected to the same PC. The internal EEPROM is programmed via the USB. This allows the OEM's USB configuration data and serial number to be written to the CP2102 on-board during the manufacturing and testing process ...
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... Product Description String 8. CP2102 Device Drivers There are two sets of device drivers available for the CP2102 devices: the Virtual COM Port (VCP) drivers and the USBXpress Direct Access drivers. Only one set of drivers is necessary to interface with the device. The latest drivers are available at http://www.silabs.com/products/microcontroller/downloads.asp. ...
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... CP2102 9. Voltage Regulator The CP2102 includes an on-chip voltage regulator. This allows the CP2102 to be configured as either a USB bus-powered device or a USB self-powered device. These configurations are shown in Figure 7 and Figure 8. When enabled, the 3 V voltage regulator output appears on the V devices ...
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... Figure 8. Configuration 2: USB Self-Powered VBUS From VBUS REGIN V From Power Net Figure 9. Configuration 3: USB Self-Powered, Regulator Bypassed CP2102 VBUS Sense Voltage Regulator (REG0 Out CP2102 VBUS Sense Voltage Regulator (REG0 Out Rev. 1.2 CP2102 Device Power Net Device Power Net 15 ...
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... CP2102 10. Relevant Application Notes The following Application Notes are applicable to the CP2102. 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 the AN144 software to configure the USB parameters on the CP2102 devices. ...
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... Changed MLP to QFN throughout. Revision 1.1 to Revision 1.2 Added additional supported operating systems on page 1. Changed VDD conditions of Tables 2 and 3 from a minimum of 2.7 to 3.0 V. Updated typical and max Supply Current number in Table 2. Removed tantalum requirement in Figure 6. Consolidated Sections 8 and 9. Added Section "10. Relevant Application Notes" on page 16. Rev. 1.2 CP2102 17 ...
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... CP2102 C I ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Email: MCUtools@silabs.com Internet: www.silabs.com The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. ...