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參數(shù)資料
| 型號： | CP2112-F01-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 8/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC HID USB-TO-SMBUS BRIDGE 24QFN |
| 產(chǎn)品培訓(xùn)模塊： | CP21xx USB Bridge |
| 標(biāo)準(zhǔn)包裝： | 75 |
| 應(yīng)用： | USB 至 SMBus 電橋 |
| 接口： | SMBus，USB |
| 電源電壓： | 1.8V，3 V ~ 3.6 V |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-QFN（4x4） |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
| 配用： | 336-2010-ND - KIT EVAL FOR CP2112 |
| 其它名稱： | 336-2004-5 |
CP2112
16
Rev. 1.2
7. GPIO Pins
The CP2112 supports 8 user-configurable GPIO pins. Each of these GPIO pins are usable as inputs, open-drain
outputs, or push-pull outputs. Three of these GPIO pins also have alternate functions which are listed in Table 10.
By default, all of the GPIO pins are configured as a GPIO input. The pins must be configured each time the device
is reset. For example, if a device is unplugged and then plugged into a PC, the GPIO pins would be configured as
inputs and would need to be reconfigured as needed.
The difference between an open-drain output and a push-pull output is when the GPIO output is driven to logic
high. A logic high, open-drain output pulls the pin to the VIO rail through an internal, pull-up resistor. A logic high,
push-pull output directly connects the pin to the VIO voltage. Open-drain outputs are typically used when
interfacing to logic at a higher voltage than the VIO pin. These pins can be safely pulled to the higher, external
voltage through an external pull-up resistor. The maximum external pull-up voltage is 5 V.
The speed of reading and writing the GPIO pins is subject to the timing of the USB bus. GPIO pins configured as
inputs or outputs are not recommended for real-time signaling.
7.1. GPIO.0-1—Transmit and Receive Toggle
GPIO.0 and GPIO.1 are configurable as Transmit Toggle and Receive Toggle pins. These pins are logic high when
a device is not transmitting or receiving data, and they toggle at a fixed rate as specified in Table 6 on page 7 when
data transfer is in progress. Typically, these pins are connected to two LEDs to indicate data transfer.
Figure 9. Transmit and Receive Toggle Typical Connection Diagram
7.2. GPIO.7—Clock Output
GPIO.7 is configurable to output a configurable CMOS clock output. The clock output appears at the pin at the
same time the device completes enumeration and exits USB Suspend mode. The clock output is removed from the
pin when the device enters USB Suspend mode. The output frequency is configurable through the use of a divider
and the accuracy is specified in Table 6. When the divider is set to 0, the output frequency is 48 MHz. For divider
values between 1 and 255, the output frequency is determined by the formula:
Equation 1. GPIO.7 Clock Output Frequency
Table 10. GPIO Pin Alternate Functions
GPIO Pin
Alternate Function
GPIO.0
TX Toggle
GPIO.1
RX Toggle
GPIO.7
CLK Output
CP2112
G PIO.0 – TX Toggle
GPIO.1 – RX Toggle
VIO
GPIO.7 Clock Frequency
48 MHz
2
ClockDivider
-----------------------------------------------
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CP2112-F01-GMR | 功能描述:輸入/輸出控制器接口集成電路 HID USB to SMBUS bridge RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2112-F02-FM | 制造商:Silicon Labs 功能描述:HID USB-to-SMBus Master,400kHz,OTP,QFN24 |
| CP2112-F02-GM | 功能描述:輸入/輸出控制器接口集成電路 HID USB to SMBUS Bridge RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2112-F02-GMR | 制造商:Silicon Laboratories Inc 功能描述:Single Chip HID USB to SMBus Master Bridge 24-Pin QFN EP 制造商:Silicon Laboratories Inc 功能描述:HID USB TO SMBUS BRIDGE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC HID USB-TO-SMBUS BRIDGE 制造商:Silicon Laboratories Inc 功能描述:HID USB to SMBUS Bridge |
| CP2112-F03-GM | 功能描述:IC HID USB-TO-SMBUS BRIDGE 24QFN 制造商:silicon labs 系列:- 包裝:管件 零件狀態(tài):在售 協(xié)議:USB 功能:橋，USB 至 SMBus 接口:SMBus 標(biāo)準(zhǔn):USB 2.0 電壓 - 電源:1.8V，3 V ~ 3.6 V 電流 - 電源:15mA 工作溫度:-40°C ~ 85°C 封裝/外殼:24-WFQFN 裸露焊盤 供應(yīng)商器件封裝:24-QFN（4x4） 標(biāo)準(zhǔn)包裝:91 |
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