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| PartNumber | CY8C9540A-24PVXI | CY8C9540A-24PVXIT | CY8C9540A-24PVXIKA |
| Description | Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM | Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM | |
| Manufacturer | Cypress Semiconductor | Cypress Semiconductor | - |
| Product Category | Interface - I/O Expanders | Interface - I/O Expanders | - |
| RoHS | Y | Y | - |
| Maximum Clock Frequency | 12 MHz | 100 kHz | - |
| Operating Supply Voltage | 3 V to 5.25 V | 3 V to 5.25 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SSOP-48 | SSOP-48 | - |
| Packaging | Tube | Reel | - |
| Series | CY8C95xx | CY8C95xx | - |
| Brand | Cypress Semiconductor | Cypress Semiconductor | - |
| Logic Family | CMOS | CY8C9540A | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | I/O Expanders | I/O Expanders | - |
| Factory Pack Quantity | 150 | 1000 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Tradename | PSoC | PSoC | - |
| Unit Weight | 0.021175 oz | 0.021175 oz | - |
| Number of I/Os | - | 40 I/O | - |
| Interface Type | - | I2C, Serial, SMBus | - |
| Interrupt Output | - | With Interrupt | - |
| Output Current | - | 10 mA, 25 mA | - |
| Output Type | - | Open Drain | - |