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MCP23017-E/SS ARDUINO I2C介面16路IO擴展模組 IIC 輸入輸出擴展板
MCP23017-E/SS ARDUINO I2C介面16路IO擴展模組 是12C接口的16路IO擴展模組，內置在MicroChip的MCP23017 晶片中。晶片功能齊全。可以將每個IO任意配置為輸入或輸出，可以設置上拉電阻，並且可以為配置為輸入的IO啟用中斷功能。IO接口具有很強的驅動能力，電流和電流可以達到25mA。
MCP23017-E/SS ARDUINO I2C介面16路IO擴展模組 是高速IIC接口。它支持100KHz，400KHz和1.7MHz的IIC頻率。該芯片具有3個地址引腳，可以設置8個不同的地址。因此，可以通過兩個IIC總線連接8個模塊，以實現多達128個IO擴展，該模組配置靈活，驅動能力強。有許多並行連接。
參數：
| 不。 | 範圍 | 價值 |
| 1個 | 工作電壓 | 3.0V至5.5V |
| 2個 | 驅動芯片 | MCP23017 |
| 3 | IO數量 | 16（輸入，輸出，中斷） |
| 4 | 驅動電源 | 25毫安1 |
| 5 | 12C頻率 | 100KHz，400KHz，1.7MHz |
| 6 | 工作溫度 | -40攝氏度-125攝氏度 |
| 7 | 芯片水平 | 工業級 |
| 8 | 平行倍數 | 最多8個 |
| 9 | 司機 | 51和Arduino |
| 10 | 模塊尺寸 | 65毫米* 19毫米 |
引腳說明：
| 不。 | 別針 | 功能 | 功能 |
| 1個 | VCC | 電源輸入 | 3.0V至5.5V |
| 2個 | 地線 | 電源負極 | 0伏 |
| 3 | SCL | 12C時鐘線 | SCL連接單芯片IO引腳或MCU 12C接口 |
| 4 | SDA | 12C數據線 | SDA連接單芯片IO引腳或MCU 12C接口 |
| 5 | RST | 切屑減少 | 低電平有效，已連接MCU IO引腳或未連接 |
| 6 | ITA | GPIOA端口中斷輸出 | 連接MCU IO引腳，中斷時不連接 |
| 7 | ITB | GPIOB端口中斷輸出 | 連接MCU IO引腳，中斷時不連接 |
包裝清單：
| 不。 | 成分 | 數量 | 單元 |
| 1個 | STC15W408AS MSP | 1個 | 片 |
| 2個 | 雙排直針 | 2 * 7 | 別針 |
| 3 | 雙排彎曲銷 | 2 * 7 | 別針 |
| 4 | 單排直針 | 1 * 20 | 別針 |
| 5 | 單排彎曲銷 | 1 * 20 | 別針 |
產品詳情：
IIC Input Output Expansion Board MCP23017-E/SS I2C Interface 16Bit 16-Channel I/O Expansion Module Pin Board Converter
Description:
This module is the 16 way IO extension module of the 12C interface, and built in the MCP23017 chip of MicroChip. The function of the chip is complete. Each IO can be arbitrarily configured as input or output, and a pull up resistor can be set, and the interrupt function can be enabled for the IO configured as input. The IO interface has a strong driving capacity, and the current and current can reach 25mA.
MCP23017 is a high-speed IIC interface. It supports the IIC frequency of 100KHz, 400KHz and 1.7MHz. The chip has 3 address pins, which can be set up for 8 different addresses. So 8 modules can be connected through two IIC buses to achieve up to 128 IO extensions.
This module is flexible in configuration and strong in driving ability. There are many parallel connections.
Parameters:
| No. | Parameter | Value |
| 1 | Operating voltage | 3.0V-5.5V |
| 2 | Drive chip | MCP23017 |
| 3 | Number of IO | 16 (input, output, interruption) |
| 4 | Drive power supply | 25mA1 |
| 5 | 12C frequency | 100KHz, 400KHz, 1.7MHz |
| 6 | working temperature | -40 Celsius -125 Celsius |
| 7 | Chip level | Industrial grade |
| 8 | Parallel multiple | Up to 8 |
| 9 | Driver | 51 and Arduino |
| 10 | Module size | 65mm*19mm |
Pin Description:
| No. | Pin | Function | Function |
| 1 | VCC | Power source input | 3.0V-5.5V |
| 2 | GND | Power negative electrode | 0V |
| 3 | SCL | 12C clock line | SCL connecting single chip IO pin or MCU 12C interface |
| 4 | SDA | 12C data line | SDA connecting single chip IO pin or MCU 12C interface |
| 5 | RST | Chip reduction | Low level effective, connecting MCU IO pin or unconnected |
| 6 | ITA | GPIOA port interrupt output | Connect MCU IO pin, without connection when interruption |
| 7 | ITB | GPIOB port interrupt output | Connect MCU IO pin, without connection when interruption |
Packing List:
| No. | Component | Quantity | Unit |
| 1 | STC15W408AS MSP | 1 | Piece |
| 2 | Double row straight pin | 2*7 | Pin |
| 3 | Double row Bending pin | 2*7 | Pin |
| 4 | Single row straight pin | 1*20 | Pin |
| 5 | Single row Bending pin | 1*20 | Pin |
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