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| PartNumber | MCP23S18T-E/MJ | MCP23S18T-E/SO | MCP23S18T-E/MJVAO |
| Description | Interface - I/O Expanders 16B I/O Expander SPI interface | Interface - I/O Expanders 16B I/O Expander SPI interface | 16-BIT, OPEN DRAIN I/O EXPANDER WITH I2C INTERFACE, 24 QFN 4X4X0.9MM T/R |
| Manufacturer | Microchip | Microchip | - |
| Product Category | Interface - I/O Expanders | Interface - I/O Expanders | - |
| RoHS | Y | Y | - |
| Number of I/Os | 16 I/O | - | - |
| Interface Type | Serial, SPI | - | - |
| Maximum Clock Frequency | 10 MHz | - | - |
| Interrupt Output | With Interrupt | - | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | QFN-24 | SOIC-28 | - |
| Packaging | Reel | Reel | - |
| Output Current | 25 mA | - | - |
| Product | I/O Expanders | - | - |
| Series | MCP23S18 | - | - |
| Type | I/O Expander | - | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Logic Family | MCP23S18 | - | - |
| Operating Supply Current | 1 mA | - | - |
| Pd Power Dissipation | 700 mW | - | - |
| Product Type | I/O Expanders | I/O Expanders | - |
| Factory Pack Quantity | 3300 | 1600 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Unit Weight | 0.032741 oz | 0.027175 oz | - |
| Moisture Sensitive | - | Yes | - |