MCP25020集成电路（IC）的I/O扩展器规格书PDF中文资料

MCP25020属于集成电路（IC）的I/O扩展器。由微芯科技股份有限公司制造生产的MCP25020I/O 扩展器该系列器件可与微控制器、微处理器或类似器件结合使用，目的是增加可用于连接外设的信号连接数量。典型的工作概念涉及使用串行通信，只需主机设备上的几根 I/O 线，即可读/写扩展器设备上的许多输入/输出引脚的状态。该技术的通信速度不佳，但连通性较高，最适合快速响应不是很关键的应用，例如许多人机界面应用。

描述 Description

The MCP2502X/5X devices operate as I/O expanders for a Controller Area Network (CAN) system, supporting CAN V2.0B active, with bus rates up to 1 Mb/s. The MCP2502X/5X allows a simple CAN node to be implemented without the need for a microcontroller.

特性 Features

• Implements CAN V2.0B

- Programmable bit rate up to 1 Mb/s

- One programmable mask

- Two programmable filters

- Three auto-transmit buffers

- Two message reception buffers

- Does not require synchronization or configuration messages

• Hardware Features

- Non-volatile memory for user configuration

- User configuration automatically loaded on power-up

- Eight general-purpose I/O lines individually selectable as inputs or outputs

- Individually selectable transmit-on-pin change for each input

- Four 10-bit, analog input channels with programmable conversion clock and VREF sources (MCP2505X devices only)

- Message scheduling capability

- Two 10-bit PWM outputs with independently programmable frequencies

- Device configuration can be modified via CAN bus messages

- In-Circuit Serial Programming™ (ICSP™) of default configuration memory

- Optional 1-wire CAN bus operation

• Low-power CMOS technology

- Operates from 2.7V to 5.5V

- 10 mA active current, typical

- 30 µA standby current (CAN Sleep mode)

• 14-pin PDIP (300 mil) and SOIC (150 mil) packages

• Available temperature ranges:

- Industrial (I): -40°C to +85°C

- Extended (E): -40°C to +125°C