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Description:
This module is the 16 IO extension module of the SPI interface, and uses the MCP23S17 chip of MicroChip. The chip is fully functional, each IO can be configured as input or output arbitrarily, and it can be used for color weaving to use pull-up resistors, and configured as input sub IO can enable interrupt function. The IO interface has a strong driving capacity, and the current and current can reach 25mA.
MCP23S17 is a high-speed SPI interface, up to 10MHz. The chip has 3 address pins and can set 8 different addresses, so 8 modules can be connected through two IIC buses to achieve up to 128 IO extensions.
Parameters:
| No. | Parameter | Value |
| 1 | Working voltage | 3.0-5.5V |
| 2 | Drive chip | MCP 23S17 |
| 3 | Number of IO | 16 (input, output, interruption) |
| 4 | Drive current | 25mA |
| 5 | SPI frequency | < 10MHz |
| 6 | Working temperature | -40 Celsius to 85 Celsius |
| 7 | Chip level | Industrial grade |
| 8 | Parallel multiple | Up to 8 |
| 9 | Driver | Arduino Library |
| 10 | Module size | About 65mm*19mm |
Wiring Instruction:
Picture One:
Picture Two:
Picture Three:
Drive Instance:
Package List:
| No. | Items | Qty | Unit | Remark |
| 1 | MCP23S17 SPI IO extension module | 1 | pcs | Without soldering |
| 2 | Straight pin | 1*20 | Pin | |
| 3 | Curved pin | 1*20 | Pin | |
| 4 | Double row straight pin | 2*7 | Pin | |
| 5 | Double row curved needle | 2*7 | Pin |
Product Details:
Module Size:
Tested by ICStation's Outstanding Partner BitBastelei:
Learn More Details in the Video:
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