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| 型號： | CP2120-GM |
| 廠商： | SILICON LABORATORIES |
| 元件分類： | 總線控制器 |
| 中文描述： | I2C BUS CONTROLLER, QCC20 |
| 封裝： | LEAD FREE, QFN-20 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 386K |
| 代理商： | CP2120-GM |
Rev. 0.2 9/06
Copyright 2006 by Silicon Laboratories
CP2120
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
CP2120
SPI TO I2C BRIDGE AND GPIO PORT EXPANDER
Single Chip SPI to I2C Transfer
Integrated clock; no external clock required
On-Chip Voltage Monitor
Slave Serial Peripheral Interface (SPI)
Up to 1.0 Mbit/s Transfers
Configurable to Least Significant Bit or Most Significant
Bit first byte transfers
I2C Master Interface
Operates at configurable rates up to 400 kHz
255 RX and TX Data Buffers
Input and Output Port Pins
8 Pins Configurable as Push-Pull or Open-Drain
1 Pin Configurable as an edge-triggered interrupt
source
All pins 5 V Tolerant
INT active low interrupt pin
Supply Voltage of 2.7 V to 3.6 V
Power-down mode with WAKEUP pin
Typical operating current: 6.4 mA
Package
Pb-free 20-pin QFN
Figure 1. Block Diagram
Voltage
Monitor
Internal
Oscillator
Controller
I2C
Interface
Port Controller
Internal Registers
SPI
Interface
Eight I/O Pins Edge-Triggered
Interrupt Source
SDA
SCL
MISO
MOSI
SCK
CS
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