The CP2120 is a highly-integrated SPI-to-I2C Bridg" />
參數(shù)資料
型號: CP2120-GM
廠商: Silicon Laboratories Inc
文件頁數(shù): 19/24頁
文件大小: 0K
描述: IC I/O EXPANDER I2C/SPI 8B 20QFN
產(chǎn)品培訓(xùn)模塊: CP21xx USB Bridge
標(biāo)準(zhǔn)包裝: 91
接口: I²C,SPI
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時鐘: 400kHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 20-QFN(4x4)
包裝: 管件
產(chǎn)品目錄頁面: 627 (CN2011-ZH PDF)
其它名稱: 336-1324
CP2120
4
Rev. 0.4
1. System Overview
The CP2120 is a highly-integrated SPI-to-I2C Bridge Controller with an SPI interface that provides a simple and
reliable method for communicating with I2C devices. The CP2120 includes a 4-wire serial peripheral interface
(SPI), a serial I2C interface, 256 byte data buffers, an internal oscillator, eight input/output port pins, and one pin
configurable as an edge-triggered interrupt source in a compact 4x4 package. No external components other than
pull-up resisters on the I2C pins are required. The SPI Master controls the CP2120 across the SPI interface using
a command set that governs all CP2120 configuration and operation.
2. Absolute Maximum Ratings
3. Global DC Electrical Characteristics
Table 1. Absolute Maximum Ratings
Parameter
Conditions
Min
Typ
Max
Units
Ambient temperature under bias
–55
125
°C
Storage Temperature
–65
150
°C
Voltage on any Port I/O Pin or RST with respect
to GND
–0.3
5.8
V
Voltage on VDD with respect to GND
–0.3
4.2
V
Maximum Total current through VDD or GND
500
mA
Maximum output current sunk by RST or any
Port pin
——
100
mA
Note: Stresses above the absolute maximum ratings may cause permanent device damage. This is a stress rating only, and
functional operation of the devices at any conditions equal to or greater than those indicated in the operational listings
of this specification are not implied. Exposure to maximum rating conditions for extended periods may affect device
reliability.
Table 2. Global Electrical Characteristics
–40 to +85 °C, 25 MHz system clock unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Digital Supply Voltage
VRST
3.0
3.6
V
Digital Supply Current
VDD =3.0 V
—3.8
4.1
mA
Specified Operating
Temperature Range
–40
+85
°C
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