CP2102-GM Silicon Laboratories Inc, CP2102-GM Datasheet - Page 12

• Manufacturer Part Number: CP2102-GM
• Description: IC USB-TO-UART BRIDGE 28VQFN
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2102-GM

• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Applications: USB
• Interface: UART
• Voltage - Supply: 3 V ~ 3.6 V
• 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
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: QFN
• Rad Hardened: No
• Usb Version: 2.0
• Data Rate: 1Mbps
• Supply Voltage Range: 1.8V To 3.6V, 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: MLP
• No. Of Pins: 28
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1161 - KIT EVALUATION FOR CP2102
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1160; CP2102

CP2102
6. Asynchronous Serial Data Bus (UART) Interface
The CP2102 UART interface consists of the TX (transmit) and RX (receive) data signals as well as the RTS, CTS,
DSR, DTR, DCD, and RI control signals. The UART supports RTS/CTS, DSR/DTR, and X-On/X-Off handshaking.
The UART is programmable to support a variety of data formats and baud rates. The data format and baud rate
programmed into the UART is set during COM port configuration on the PC. The data formats and baud rates
available are listed in Table 6.
7. Internal EEPROM
The CP2102 includes an internal EEPROM that may be used to customize the USB Vendor ID, Product ID,
Product Description String, Power Descriptor, Device Release Number, and Device Serial Number as desired for
OEM applications. Customization of the USB configuration data is optional. If the EEPROM is not programmed
with OEM data, the default configuration data shown in Table 7 is used. However, a unique serial number is
required for OEM applications 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. A stand-alone utility
for programming the internal EEPROM is available from Silicon Laboratories. A library of routines provided in the
form of a Windows
into custom software used by the OEM to streamline testing and serial number management during manufacturing.
The EEPROM has a typical endurance of 100,000 write cycles with a data retention of 100 years.
USB descriptors can be locked to prevent future modification.
12
Vendor ID
Product ID
Power Descriptor (Attributes) 80h
Power Descriptor (Max.
Power)
Release Number
Serial Number
Product Description String
Name
Data Bits
Stop Bits
Parity Type
Baud Rates
Notes:
®
1. 5-bit only.
2. Additional baud rates are supported. See “AN205”.
3. 7 or 8 data bits only.
DLL is also available. This library can be used to integrate the EEPROM programming step
2
5, 6, 7, and 8
1, 1.5
None, Even, Odd, Mark, Space
300, 600, 1200, 1800, 2400, 4000, 4800, 7200, 9600, 14400,
16000, 19200, 28800, 38400, 51200, 56000, 57600, 64000,
76800, 115200, 128000, 153600, 230400, 250000, 256000,
460800, 500000, 576000, 921600
Table 7. Default USB Configuration Data
Table 6. Data Formats and Baud Rates
10C4h
EA60h
32h
0100h
0001 (63 characters maximum)
“CP2102 USB to UART Bridge Controller” (126 characters maximum)
1
, and 2
Rev. 1.0
3
Value