CP2102-GMR Silicon Laboratories Inc, CP2102-GMR Datasheet

USB to UART Bridge 28-Pin QFN T/R

CP2102-GMR

Manufacturer Part Number
CP2102-GMR
Description
USB to UART Bridge 28-Pin QFN T/R
Manufacturer
Silicon Laboratories Inc
Datasheets

Specifications of CP2102-GMR

Package
28QFN
Operating Temperature
-40 to 85 °C
Applications
USB
Interface
UART
Voltage - Supply
3 V ~ 3.6 V
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Mounting Type
Surface Mount
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Mounting Style
SMD/SMT
Operating Supply Voltage
3.6 V
Supply Current (max)
100 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1161 - KIT EVALUATION FOR CP2102
Lead Free Status / Rohs Status
 Details
Other names
336-1802-2
CP2102-GMR
Q4435029

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CP2102-GMRCP2102-
0
S
Single-Chip USB to UART Data Transfer
USB Function Controller
Asynchronous Serial Data BUS (UART)
Rev. 1.4 8/10
CONNECTOR
INGLE
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
USB
- Data bits: 5, 6, 7, and 8
- Stop bits: 1, 1.5, and 2
- Parity: odd, even, mark, space, no parity
VBUS
Integrated USB transceiver; no external resistors
Integrated clock; no external crystal required
Integrated 1024-Byte EEPROM for vendor ID, product
On-chip power-on reset circuit
On-chip voltage regulator: 3.3 V output
100% pin and software compatible with CP2101
USB Specification 2.0 compliant; full-speed (12 Mbps)
USB suspend states supported via SUSPEND pins
All handshaking and modem interface signals
Data formats supported:
Baud rates: 300 bps to 1 Mbits
576 Byte receive buffer; 640 byte transmit buffer
Hardware or X-On/X-Off handshaking supported
Event character support
Line break transmission
GND
required
ID, serial number, power descriptor, release number,
and product description strings
D+
D-
1
4
-C
HIP
D1 D2 D3
7
6
8
5
4
USB
REGIN
VBUS
VDD
GND
D+
D-
TO
Transceiver
IN
USB
Regulator
Copyright © 2010 by Silicon Laboratories
Voltage
UART B
Figure 1. Example System Diagram
OUT
EEPROM
1024B
Oscillator
48 MHz
3.3 V
USB Function
Controller
Buffer
640B
CP2102
TX
RIDGE
Buffer
576B
Virtual COM Port Device Drivers
USBXpress™ Direct Driver Support
Example Applications
Supply Voltage
Package
Ordering Part Number
Temperature Range: –40 to +85 °C
RX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Works with Existing COM Port PC Applications
Royalty-Free Distribution License
Windows Vista/XP/Server 2003/2000
Mac OS-X/OS-9
Linux
Royalty-Free Distribution License
Windows Vista/XP/Server 2003/2000
Windows CE
Upgrade of RS-232 legacy devices to USB
Cellular phone USB interface cable
PDA USB interface cable
USB to RS-232 serial adapter
Self-powered: 3.0 to 3.6 V
USB bus powered: 4.0 to 5.25 V
Pb-free 28-pin QFN (5x5 mm)
CP2102-GM
UART
SUSPEND
SUSPEND
RST
DCD
DSR
RXD
C P 2 1 0 2
DTR
TXD
RTS
CTS
RI
9
12
11
1
2
28
27
26
25
24
23
VDD
External RS-232
(to external circuitry
for USB suspend
states)
UART circuitry
transceiver or
CP2102

Related parts for CP2102-GMR

CP2102-GMR Summary of contents

Page 1

... TX RX EEPROM Buffer Buffer Figure 1. Example System Diagram Copyright © 2010 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 ...

Page 2

... CP2102 2 Rev. 1.4 ...

Page 3

... Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3. Pinout and Package Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 4. USB Function Controller and Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5. Asynchronous Serial Data Bus (UART) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6. Internal EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7. CP2102 Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 7.1. Virtual COM Port Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7.2. USBXpress Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7.3. Driver Customization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 7.4. Driver Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 8 ...

Page 4

... 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 ...

Page 5

... –10 µA V – 0 –10 mA — 8.5 mA — µA — — OL 2.0 — — Rev. 1.4 CP2102 Min Typ Max Units –55 — 125 °C –65 — 150 °C –0.3 — 5.8 V –0.3 — 4.2 V — — 500 mA — — 100 mA ...

Page 6

... CP2102 Table 4. Reset Electrical Characteristics –40 to +85 °C unless otherwise specified Parameter RST Input High Voltage RST Input Low Voltage Minimum RST Low Time to Gener- ate a System Reset 6 Conditions Min 0 — 15 Rev. 1.4 Typ Max Units — — V — 0. — — ...

Page 7

... 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. 1.4 ...

Page 8

... CP2102 DCD GND REGIN 7 Figure 2. QFN-28 Pinout Diagram (Top View CP2102 18 Top View 17 16 GND 15 Rev. 1 ...

Page 9

... Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components. Max Dimension Min 1.00 L 0.35 0.05 L1 0.00 aaa 0.30 bbb ddd 3.35 eee Z Y 3.35 Rev. 1.4 CP2102 Typ Max 0.55 0.65 — 0.15 0.15 0.10 0.05 0.08 0.44 0.18 9 ...

Page 10

... CP2102 Figure 4. QFN-28 Recommended PCB Land Pattern Table 7. QFN-28 PCB Land Pattern Dimensions Dimension Min 0.20 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing is per the ANSI Y14.5M-1994 specification. 3. This Land Pattern Design is based on the IPC-7351 guidelines. ...

Page 11

... 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 ...

Page 12

... 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 ...

Page 13

... Product Description String 7. 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. ...

Page 14

... CP2102 8. 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 6 and Figure 7. When enabled, the 3 V voltage regulator output appears on the V devices. See Table 10 for the voltage regulator electrical characteristics. ...

Page 15

... Power Net Figure 7. Configuration 2: USB Self-Powered VBUS From VBUS REGIN V From Power Net Figure 8. Configuration 3: USB Self-Powered, Regulator Bypassed CP2102 VBUS Sense Voltage Regulator (REG0 Out CP2102 VBUS Sense Voltage Regulator (REG0 Out Rev. 1.4 CP2102 Device Power Net Device Power Net 15 ...

Page 16

... CP2102 9. 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. ...

Page 17

... Updated Figure 1 on page 1.  Updated Figure 5 on page 11.  Updated Maximum VBUS Detection Input Threshold in Table 10 on page 14. Revision 1.3 to Revision 1.4  Updated Table 4 RST Input Low Voltage  Updated Table 6, Note 4.  Updated Table 7, Note 10. Rev. 1.4 CP2102 17 ...

Page 18

... 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 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. 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. ...

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